Extech
Extech RH300 – Hygro-Thermometer Psychrometer
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Description
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.
- 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.
| Model | Extech RH300 |
| 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) |
| 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) |
| Included | Complete with 2 AAA batteries. |
Specifications are subject to manufacturer updates. Refer to current Extech product documentation for complete operating, safety and maintenance requirements.
Extech Limited Warranty
The Extech RH300 is covered by Extech's standard limited warranty for this product. Register your product with Extech promptly after purchase to activate full coverage.
Warranty term, eligibility, registration requirements, exclusions, and coverage are subject to Extech's complete warranty terms for this model.