Nunes Instruments

The hair hygrograph is an instrument used for recording continuously the relative humidity of the air. The sensor of this instrument is a bunch of human hair. The length of the hair increases as the humidity increases and vice versa. These small changes in length are magnified by means of a lever system such that the movement of the pen is proportional to the relative humidity. The hair hygrograph is kept in the double thermometer screen along with the bimetallic thermograph. The Drum rotates by Daily Quartz Electronic Clock.  

• Precise Temperature & Humidity Sensor. Split type Design with extendable spring cable for convenient measurement.
• Backlit LCD Display. Auto Power Off. Data Hold.
• MAX / MIN Value. Lower Power Indication. Battery Operated.
• Temperature Scale Selection between °C / °F. Temperature: -10 to 60°C. Accuracy: ±1°C.
• Relative Humidity: 0 ~ 100% RH. Accuracy: ±5%RH.

Reflectance-based device that provides a convenient, low-cost method of measuring the relative photosynthetic pigments content of a leaf sample.
Measure and calculate particular reflectance indices to assess chlorophyll content, photoprotecting carotenoids, and other important features in live foliage.
Two standard versions measure the most common indexes:Photochemical Reflectance Index (PRI)and Normalized Difference Vegetation Index (NDVI). Measured data are sequentially stored in the internal FluorPen memory. Comprehensive FluorPen 1.1 software provides data transfer routines and many additional features for data presentation in tables and graphs.

Key Features:

- Rugged and compact device
- Easy-to-use two-button operation
- Integrated GPS module
- Comprehensive software for data processing
- USB and Bluetooth communication for data transfer
- Li-ion rechargeable battery via USB port of a PC