


HTDF Humidity Temperature Data Logger
The HTDF humidity logger is a data logger that measures and records relative humidity (% RH) as well as temperature from -20 to 85°C and 0 to 100% RH. The HTDF humidity logger will record temperature and humidity simultaneously at programmable intervals, up to a maximum of 16,000 readings (8,000 humidity and 8,000 temperature). The ThermaData HTDF humidity logger includes an internal humidity and temperature sensor as well as an LCD display that shows both temperature and humidity levels. When purchased with these therma-hygrometers, a 3-point (25, 50, and 75%rh) UKAS Humidity Calibration Certificate is available at a discounted price. Choose this option from the drop-down menu.

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- Specifications
- Features
- Downloads
Accuracy (Humidity) | +/-3%rh @ +25°C (10 to 90 %rh) |
Accuracy (Temperature) | +/-0.5°C (0 to +45°C), +/-1°C (-20 to +70°C), +/-1.5°C (+70 to +85°C) |
Battery Life | 2 years minimum |
Battery | 3.6 volt half AA lithium |
Dimensions | 76 x 23mm |
Display | 10mm LED toggles every 6 seconds / 2 LEDs |
Humidity | 0 to 100%rh |
Resolution (Humidity) | 0.1%rh |
Resolution (Temperature) | 0.1°C |
Temperature Range | -20 to 85°C |
Weight | 80 grams |
The dual function datalogger display switches between humidity and temperature readings and stores up to 16,000 readings.
Visual inspection reveals whether or not limits have been exceeded.
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