Extech Instruments RHT20 - Specifications

5 RHT20-en-US_V1.6 5/21
Specifications
Display Multi-function LCD
Measurement ranges 0 to 100% RH
-40 to 158°F , -40 to 70°C
Resolution 0.1°, 0.1RH
Maximum data points 16,350 Temperature and 16,350 Humidity values
Sample rate 1s to 24h selectable
Analysis software Check the software download page of the extech.com website for
the latest version of the PC software and its operating system
compatibility.
Open input indication "LO" appears on the LCD
Low battery indication Empty battery symbol appears on the LCD
Power supply 3.6V Lithium Battery
Battery life 3 months (approximately)
Operating Temperature -40 to 158°F, -40 to 70°C
Operating Humidity 0 to 100% RH
LCD Operating Temperature -13°F to 158°F (-25°C to 70°C)
Dimensions 3.7x1.9x1.2") (94.4x48.9x31.2mm)
Weight 3.2oz (90.7g)
Range
Accuracy
Relative Humidity
0 to 20% and 80 to 100%
±5.0%
20 to 40% and 60 to 80%
±3.5%
40 to 60%
±3.0%
Temperature
14 to 104°F
±1.8°F
-13 to 14°F and 104 to 158°F
±3.6°F
-40 to -13F
±8°F typical
-10 to 40°C
±1°C
-25 to -10°C and 40 to 70°C
±2°C
-40 to -25C
±4°C typical