Nunes Instruments

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty.

The electric level and it is better for calibration laboratory and surface plate and it is available 0.001 micron 0.005 micron & 0.01 micron mainly use for calibration surface plate and can be check flatness, parallism, straightness and also can supply software it is very useful for show graph or store data in computer.

• Precision measurement
• Calipers
• Vernier caliper
• Digital caliper
• Dial caliper
• Micrometers
• Outside micrometer
• Inside micrometer
• Depth micrometer
• Digital micrometer
• Height gauges
• Dial height gauge
• Digital height gauge
• Coordinate Measuring Machine (CMM)
• Manual CMM
• Automatic CMM
• Surface plates
• Granite surface plate
• Cast iron surface plate
• Gauge blocks (Slip gauges)
• Dial indicators
• Plunger dial indicator
• Lever dial indicator
• Digital dial indicator
• Angle measurement
• Protractor
• Bevel protractor
• Angle gauge
• Sine bar
• Bore gauges
• Dial bore gauge
• Optical comparators
• Profilometers
• Laser interferometers
• Hardness testers
• Rockwell hardness tester
• Brinell hardness tester
• Vickers hardness tester
• Force measurement
• Dynamometers
• Load cells
• Tensile testers
• Temperature measurement
• Thermocouples
• Thermistors
• Infrared thermometers
• Pressure measurement
• Barometer
• Manometer
• Pressure gauge
• Tachometers
• Coordinate measuring tools
• Vernier scale
• Digital measuring tools
• Optical measurement
• Laser micrometer
• Optical flat
• Thickness gauges
• Ultrasonic thickness gauge
• Coating thickness gauge

• For easy decorative interior fitting applications; Working range: 15m. Maximum precision thanks to the Bosch pendulum precision system; Accuracy: ± 0.2 mm/m
• Intelligent Current Management helps monitor the laser diode temperature and to maximise laser visibility without overheating. Detachable, a 360-degree rotating platform with bubble via and fine adjustment; dust and splash protection - IP 54, Compatible with Bosch BT150 Professional Tripod Tread size 5/8’’
• Package Contents: Order / Part number: 0601063M80, Carrying Bag

The tension in the moving yarn instrument determines load during processing of yarn while spinning and winding, followed again during warping, it is also used during weft winding. Yarn being very sensitive to tension should be checked by means of tension meter. The instrument is very sensitive, give reproducible and stable readings, if the measuring conditions are repeated; therefore it is advisable to select proper range to tension meter.

The automatic oil insulation test kit upto 100 kv range of automatic oil tester offer fully automatic testing with many advance features. The design allows the operator to simply prepare an oil test vessel to be load it with the sample oil, place it in the chamber and initiate the sequence. The test set  then performs the series of test as selected out of a number of oil testing specifications.

1. Tension measurement
2. Cable tension
3. Force gauge
4. Belt tension
5. Load cell
6. Pulling force
7. Tension gauge
8. Mechanical tension meter
9. Digital tension meter
10. Inline tension monitoring
11. Tensile strength
12. Wire tension
13. Belt tension meter
14. Fiber tension
15. Tension sensor
16. Dial indicator
17. Newtons (N)
18. Pounds-force (lbf)
19. Kilograms-force (kgf)
20. Portable tension meter
21. Continuous tension measurement
22. Calibration
23. Suspension cable tension
24. Textile tension
25. Data logging

• The poy foy spinning tension meter cable yarn tension meter is used to determine tension of moving cable yarn by cable / yarn / wire.
• The instrument is easy to handle.
• Range 500gm with I gm accuracy. 
• This yarn tension meter is maximum hold facility.

The air quality meter is a professional pollution detector for personal use. The device can measure & CO levels in the air to help users take precautionary measures against high pollution. The integrated response time of <10 sec ensures it can accurately detect and measure within a few seconds of being activated.

• The analog display shows changing and fluctuating tensions fast and enables an optimal process adjustment
• Filament guide and roller shifting mechanism ensure easy acquisition of the running material
• Large, easy to read scale (54 mm Ø)
• Everything in operator's view: the guide rollers - the measured material - the readings
• Ball-bearing mounted, V-grooved guide rollers
• Each instrument is individually calibrated for highest accuracy Housing made of high-strength plastic
• Range: 5-30/10-70/50-120 up to 500 grams.

• The analog display shows changing and fluctuating tensions fast and enables an optimal process adjustment
• Filament guide and roller shifting mechanism ensure easy acquisition of the running material
• Large, easy to read scale (54 mm Ø)
• Light weight

• Everything in operator's view: - the guide rollers - the measured material - the readings
• Ball-bearing mounted, V-grooved guide rollers ??? Each instrument is individually calibrated for highest accuracy
• Housing made of high-strength plastic
• Certificate of Compliance with the order 2.1 according DIN EN 10204 is included
• Optionally available: Inspection Certificate 3.1 according DIN EN 10204 with calibration report

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Thickness measurement using magnetic
• Method to meaasure the non-magnetic
• Coating on a magnetic metal substrate
• Single point / two-point method

This is the newest type Digital Shore Hardness Meter in the market, which is used for Shore hardness testing with pocket size model and integrated probe. With RS 232 interface and can be switched off automatically. The meter screen can show hardness result, average value, max. value directly.

Standards: 

DIN53505, ASTMD2240, ISO7619, JISK7215 

Features:

Shore A is designed to measure the penetration hardness of rubber, elastomers and other rubber like substances such as neoprene, silicone, and vinyl. It can also be used for soft plastics, felt, leather and similar materials.

Shore C is designed for various foam and sponge.

Shore D is designed for plastics, Formica, Epoxies and Plexiglas.

This industrial piezo-electric vibration sensor is designed for continuous monitoring of machinery in harsh environments. The sensor features a built-in preamplifier and is hermetically sealed in a rugged stainless steel housing, ensuring durability and long-term reliability. It outputs a 4–20 mA signal proportional to vibration velocity, making it ideal for integration with industrial control and monitoring systems.

With a frequency range typically spanning 10–1000 Hz, it can accurately capture machinery vibrations across a wide spectrum. The device’s mounting via standard studs (such as 1/4-28 UNF) allows easy installation on pumps, motors, compressors, and other rotating equipment. High IP protection ratings (IP67–IP69k) make it suitable for challenging industrial conditions involving dust, moisture, or washdowns.

• 4–20 mA output proportional to vibration velocity for seamless monitoring.

• Piezo-electric sensor with built-in preamplifier for high signal integrity.

• Hermetically sealed stainless steel housing ensures durability in harsh environments.

• Wide frequency response (10–1000 Hz) for accurate vibration detection.

• Standard mounting stud (1/4-28 UNF) for easy installation.

• Protection ratings IP67–IP69k for dust, water, and washdown resistance.

• Suitable for continuous machinery health monitoring and predictive maintenance.

• High temperature and corrosion resistance for industrial applications.

• Continuous vibration monitoring of industrial motors, pumps, and compressors.

• Predictive maintenance programs in factories and process plants.

• Machinery condition monitoring in harsh environments.

• Integration with PLCs, SCADA systems, or vibration monitoring systems.

• Monitoring rotating equipment in petrochemical, manufacturing, or utility industries.

• Detecting imbalance, misalignment, or mechanical faults in critical equipment.

The HD Durometer Hardness Tester is designed for accurate measurement of material hardness across a wide range of 0 to 100 HD. Featuring a truncated cone indenter with a 35° included angle and a test load capacity of up to 44.5 N, the instrument ensures repeatable and precise results.

Available in analog and digital versions, the tester offers a resolution of 0.5 HD or 1 HD, with an accuracy of ±1 HD or better. It complies with international testing standards such as ASTM D2240 and DIN 53505, making it suitable for both laboratory and industrial applications.

• Wide measurement range of 0 to 100 HD.

• Resolution options: 0.5 HD or 1 HD for precise readings.

• High accuracy (±1 HD or better).

• Truncated cone indenter (35° angle) ensures consistent penetration.

• Complies with ASTM D2240 and DIN 53505 standards.

• Test load up to 44.5 N for reliable performance.

• Analog and digital display models available.

• Suitable for handheld or test stand-mounted operation.

• Lightweight and durable design for field and lab testing.

• Hardness measurement of rubber, elastomers, and soft plastics.

• Testing of thermoplastic elastomers and silicone products.

• Suitable for industrial quality control, R&D labs, and production environments.

• Hardness evaluation for automotive, aerospace, and polymer industries.

• Useful for printing rollers, sealing materials, and molded components.

• Reset : Automatic or Manual - Selectable
• Display : 4 digit, 2" Height
• Red LED Display
• Resolution : 1oC
• Accuracy : +2oC.
• Range : 1000 - 1800oC (500-1400oC for K type)
• Input : R,S, B or K Thermocouple - Selectable
• Measuring Principle : Plateau, Averaging or Peak - Selectable
• Clock : Time, internal,clock-battery backed.
• Compensation : Cold junction compensation automatic.
• Data Memory : Last 190 readings- battery backed-Printable with date and time.
• Outputs :

1. Temperature Result on 2" Ht 4 digit LED Display
2. Bright, Green, Amber and Red lamps for status indication with Hooter
3. 4 digit result in current loopat 220 Hz bit rate until reset.
4. parallel port for Printer
5. VT-232 for PC communication
6. 4-20 mA output until reset.

• Dimensions : 19" Rack Mounting (483 x 140 x 265mm)
• Cut out : 403 x 133(Optional Accessories)
• Wall or Floor-mounting MS Panel
• Remote Large Display Unit VT-02
• Remote Status Indicator Lamps
• 80 column Dot Matrix Printer
• Digital Calibration Unit
• Model VTC-0212 ft Lance, Compensating Cable
• Thermocouple Tips, Receptacles & Housing

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

The tension meter VT 1 Series is used to accurately measure the running line tensions on all kinds of wires (copper, aluminum, plastic etc.,). Cotton Thread and fibers. With precise jeweled (Ruby Bushing) movements, precision ball bearing mounted rollers and a built-in damper, the T1 Tension Meter completely eliminates the vibrations and resistance caused by the instruments itself, providing reliable, accurate and steady tension readings even as it fluctuates. The measurement range of this tension meter will starts from 0 grams to 3000 grams. Measuring unit in Newton also available. The T1 Tension Meter completely eliminates the vibrations. We are engaged in providing a wide gamut of T1 Series Mechanical Tension Meter to our prestigious clients. Our given tension meter completely eliminates the vibrations and resistance caused by the instrument itself, providing reliable, steady and accurate tension readings even as it fluctuates. This mechanical tension meter is used to accurately measure the running line tensions on all kinds of wires. The offered T1 Series Mechanical Tension Meter is manufactured by our adept professionals using advanced techniques and excellent quality factor inputs. 

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Peel Strength tester is a way of determining how something will react when it is pulled a part-when a force is applied to it in tension. Tensile is one of the simplest and most widly mechanical tests. By measuring the force required to elongate a specimen to breaking point, material properties can be determined that will allow designers and quality to predict how materials and products will behave in their intended applications.

Simply turn on the device and wait for ten minutes of warming up. Inner pump starts sucking odor air into the device and odor strength level is displayed on the monitor.
It is suitable for detecting odor in manufacturing and converting factories, measuring pet odor and putrid smell, monitoring garbage odor level in garbage disposal plants, restaurants and sh markets. It's useful for checking the eect of deodorization before and after cleaning at hospitals and nursing houses, monitoring smell of compost in livestock plants.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. Why not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition Indian or Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Wide temperature range 700 – 2000 º C or 700 – 3500 º C
• Fast response and sensitive measuring system
• Light weight & portable
• High measurement accuracy
• Two measuring ranges in each instrument
• Operates on two 1.5V dry cells

The Molten Metal Pyrometer, ‘NUNES’ is a disappearing filament Optical Pyrometer, suitable for measuring high temperature of incandescent objects, in annealing and hardening furnaces, in firing kilns, for measuring the temperature of molten and flowing metal or glass as well as incandescent blocks during forging, pressing or rolling. The temperature measurement makes use of comparison between the brightness of an electrically heated and calibrated incandescent filament (reference light bulb) in NUNES and that of the object to be measured.

The special advantage offered by the NUNES is the light weight of the instrument which houses all components of the complete measuring equipment. Thus, it can be transported by means of a carrying strap from place to place without any inconvenience. Due to its appropriate design, the simple measuring principle used is the convenience of its operation. High accuracy measurements can also be carried out even by less skilled operators. An additional advantage is the suitability for carrying out measurements on very small surfaces of down to 2 mm diameter and a measuring distance of 60 cm. Every NUNES has two measuring ranges.

TECHNICAL DATA

Measuring ranges : Cat No. VT56.01 A - 700 to 1500 °C & 1200 to 2000 °C
Cat No. VT56.02 A - 700 to 1500 °C & 1400 to 3500 °C
Spectral sensitivity : 0.65 μm
Accuracy * : ±1% of measuring range
Measuring distance : > 600 mm
Object to be measured : > 2 mm dia
Power Supply : Two 1.5 V dry cells (R20/ UM-1U or equivalent) Accessory : Carrying Case

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Versatile tool for vibration measurement during product development and for health and safety at the workplace Measurement of hand-transmitted vibration Measuerement of whole-body vibration Vibrations on passenger and merchant ships 

Vibration dosemeter Condition monitoring of rotating machinery
Measurements at roller bearings
Vibration measurement in vehicles and other vibrating structures

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• FULL METAL CONSTRUCTION 
• DIRECT DIGITAL READING 
• OPTION FOR AIR TEMPERATURE MEASUREMENT
• OPTIONAL MODIFICATION TO SUIT COOLING TOWER.

Product Specification :
Weight: Up to 60Kg

Rotating Speed : Up to 15000RPM

Power Supply  : 240 to 440V

Is It Magnetic  : Magnetic

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

This is for determining the moisture density relation of soils. In this apparatus, small qualtity sample is compacted under kneading action of the spring loaded tamper set either at 10 kg or 20 kg. As the sample required is very small, a number of tests can be carried out, each time taking a fresh sample. The time required for compaction is very much less.

INTRODUCTION

• With clear LCD display for easy to read
• Compact pocket size to take along
• Wide measuring range with high resolution
• 30° angle with 0.5HD resolution
• Easy to store with plasitc box
• Button Battery is included
• Perfect for high hardness things, such as ebonite, hard-resin, acrylic, glass, printing plate & fiber

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Particle Counter essential for IAQ testing.
• Also takes JPEGs/Video for compelling diagnostics.
• 6 channels of particle size.
• Measures essential air quality parameters.
• Test filter efficiency and other particle compliance factors.
• 74MB internal memory, expands to 8GB via microSD.
• Download data and multimedia via USB.
• Software included for analysis and reporting.
• Calibrated, NIST-traceable.
  
  Application: HVAC/R System Monitoring, Clean Rooms, Pharmaceutical, Air Quality Monitoring, Transportation & Service Depots, Power Generation (fossil fuel burning), Traffic-related emissions, Charcoal-based heating/cooking, Cement Manufacturing, Mining, & Stone Crushing, Metallurgy Processes (melting, pouring, torch-cutting), Agro-Industrial (flour milling & agricultural field burning )

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

• Measures machinery case vibration
• 4-20mA output in acceleration, velocity or displacement
• Buffered output up to 300 meters (1,000 feet)
• Compatible with other manufacturers’ sensors (accelerometer or velocity sensor)
• Aluminum casted (copper free) case with epoxy potting for better environmental protection and reliability
• Compact size 

Nunes Instruments , is  in the field of Instrumentation Sales Service & Repairs with 40 years of experience.  We provide service & repairs to your old high precision instruments and equipment.  We provide cost effective service & Repair to any brand, any make instruments  with service warranty. W hy not try once?

Instruments of Any Type, Any Make, Analog/Digital, Any Condition  Indian or  Imported

• Laboratory Instrument, Test Equipment,
• Scientific, Measuring, Precision Instrument,
• Analytical, Bio Medical, Survey, Electrical,
• Electronic Instruments ,Weather, Metrology.

The V-Tech Fruit Hardness Tester is a precision instrument designed to measure the firmness and ripeness of various fruits. It is ideal for agricultural research, fruit quality control, and post-harvest monitoring.

• Accurate measurement for reliable hardness readings to assess fruit maturity and quality.
• Ergonomic design with a lightweight and easy-to-handle structure for user comfort.
• Multiple testing probes to accommodate different fruit types such as apples, pears, and peaches.
• Digital display (optional) with both analog and digital models available for precise readings.
• Durable build with high-quality materials for long-lasting use in lab and field applications.
• Portable and easy to use with a compact design for convenient carrying and operation.

The Iridium Radiation Detector is a specialized instrument designed to detect and measure radiation levels, particularly from iridium isotopes or other radioactive sources. It is widely used in safety and security applications, nuclear facilities, medical sectors, and environmental monitoring to ensure safe radiation exposure limits.

Key Features:

1. High Sensitivity to detect low levels of radiation from iridium and other radioactive sources.
2. Wide Detection Range for alpha, beta, and gamma radiation.
3. Real-Time Monitoring with digital display for immediate reading of radiation levels.
4. Portable Design for easy use in field operations and remote locations.
5. Automatic Calibration to maintain accuracy and reliability.
6. Durable Construction to withstand harsh environments and rough handling.
7. Audible and Visual Alerts to warn users when radiation levels exceed safe limits.

Measuring Wheel is a rugged and reliable distance measuring instrument designed for both indoor and outdoor use. It features a two-section foldable handle for easy transport and storage, and its frame is constructed from durable ABS plastic, while the tire is made of wear-resistant polyurethane (PU) for smooth rolling over various surfaces.

It provides precise measurement readings with a resolution of 0.1 meters, making it ideal for tasks requiring medium-precision distance estimation. The built-in counter and vertical pointer enhance operational convenience, while reset and brake functionalities allow users to control and zero out measurements effortlessly. A built-in support/stand enables the unit to remain upright when not in use.

• Foldable handle for portability and compact storage

• Durable ABS body with long-lasting PU tire

• Precision measurement with 0.1 m resolution

• Integrated brake for stopping and locking wheel movement

• Resettable mechanical counter for easy tracking

• Vertical pointer for accurate alignment and start-stop marking

• Inbuilt stand to support the wheel when idle

• Civil engineering and land surveying

• Construction site distance measurement

• Road and highway project layout

• Property and boundary estimation

• Event planning and field measurement tasks

A device used to measure and calibrate the force or weight applied to load cells. It displays signals from load cells as numerical values and graphs, supports connectivity with external devices, and allows precise control of weighing operations. Ideal for laboratory and industrial calibration tasks.

Key Features:

• Digital display with graphical and numerical readings

• High-precision calibration of load cells

• Connects to external devices for expanded measurement systems

• User-friendly interface for controlling operations

• Configurable measurement settings

• Data logging and storage capability

• Portable design suitable for lab or industrial use

Applications :

• Calibration of industrial load cells

• Force measurement in manufacturing processes

• Laboratory testing of weighing equipment

• Quality control and maintenance of weighing devices

• Integration with automated measurement systems

The tension in the moving cable, yarn, wire. This instrument determines load during processing of cable, yarn or wire while processing. The instrument is very sensitive, give reproducible and stable readings, if the measuring conditions are repeated; therefore it is advisable to select proper range of tension meter.