Extech RH300 Hygro-Thermometer Psychrometer
Humidity, Wet bulb, Dew Point, Air Temperature plus External Probe Temperature measurements
The RH300 is a compact meter that is ideal for field applications. Simultaneously displays relative humidity (10% to 90% RH), air temperature and dew point or wet bulb. Calculates T1-T2 differential (air temperature minus external probe temperature) using optional probe (TP890), and T2 minus dew point. Built-in protective sensor cap. Other features include Data Hold, Auto Power Off, and MAX/MIN reading. Complete with 2 AAA batteries.
Specifications
| General | |
|---|---|
| Dew Point | -90.4 to 122 °F (-68.0 to 49.9 °C) |
| 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 or ±1 °C |
| Temperature [Air] Max Resolution | 0.1 ° |
| Temperature [Type K] Max Resolution | -4 to 158 °F (-20 to 70 °C) |
| Temperature [Type N] | ±1.8 °F or ±1 °C |
| Temperature [Type N] Basic Accuracy | 0.1 ° |
| Wet Bulb | -6.9 to 122 °F (-21.6 to 49.9 °C) |
| Additional Details | |
|---|---|
| Certifications | RH300-NIST_S: CE, NIST RH300_S: CE |
| Dimensions | 7 × 1.9 × 1" (178.5 × 48.4 × 24.7mm) |
| Power | 2 × AAA (1.5V) batteries |
| Warranty | 2 years |
| Weight | 3.3oz (95g) |
Resources & Support
User Manual
Extech RH300 User Manual
Certification
Extech RH300 Declaration of Conformity
Datasheet
Extech RH300 Datasheet
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.