User Manual

RHT20-en-GB_V1.5 1/17

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

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