Extech RH401
Digital Psychrometer + InfraRed Thermometer
The Extech RH401 is a Digital Psychrometer with a built in IR Thermometer that allows for quick, non contact surface temperature measurements. It displays air temperature, humidity, surface temperature or dew point, and wet bulb, all on a triple LCD with backlighting. The IR thermometer features adjustable emissivity and a spot to distance ratio of 8:1. The meter calculates temperature difference between IR surface temperature and dew point. Other features include data hold, programmable auto power off, and a retractable probe that protects the sensors when the meter is not in use. Includes hard case and four AAA batteries.
Specifications
| General | |
|---|---|
| Dew Point | -90.4 to 122 °F (-68.0 to 49.9 °C) |
| Dew Point Max Resolution | 0.1 ° |
| Relative Humidity | 10 to 90% |
| Relative Humidity Basic Accuracy | ±3% |
| Relative Humidity Max Resolution | 0.1% |
| Temperature [Air] | -4 to 122 °F (-20 to 50 °C) |
| Temperature [Air] Basic Accuracy | ±1.8 °F/ ±1 °C |
| Temperature [Air] Max Resolution | 0.1° |
| Temperature [IR] Basic Accuracy | -328 to 2498 °F (-200 to 1370 °C) |
| Temperature [IR] Max Resolution | ±0.3% or ±1.8 °F/ ±1 °C |
| Temperature [RTD] | 0.1° |
| Wet Bulb | -6.9 to 122 °F (-21.6 to 49.9 °C) |
| Wet Bulb Max Resolution | 0.1 ° |
| Additional Details | |
|---|---|
| Dimensions | 9 × 2.2 × 1.7" (230 × 57 × 44mm) |
| Power | 4 × AAA (1.5V) batteries |
| Warranty | 2 years |
| Weight | 5.3oz (153g) |
Resources & Support
User Manual
Extech RH401 User Manual
Datasheet
Extech RH401 RH405 Datasheet
Certification
Extech RH401 Declaration of Conformity
Export Restrictions
The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.