Extech EasyView™ Hygro-Thermometers are relative humidity, temperature, dew point, and wet bulb measurement instruments produced by Extech. There are two versions, EA20 and EA25, with EA25 having a data recording function.
The Extech EA20 EasyView Hygro-Thermometer is a compact and rugged device designed for measuring relative humidity, temperature, dew point, and wet bulb. It features a large display with a bargraph and allows users to view any two parameters simultaneously. The device includes a Min/Max function to store and recall highest and lowest readings, a timer function, and a programmable auto power-off feature to save battery life. It comes with a remote capacitance sensor, a built-in stand, a protective holster, a probe, and 6 AAA batteries. An optional model, the EA25, includes a datalogger capable of storing up to 15,000 records and a built-in RS-232 PC serial interface with compatible software.
The thermometer is suitable for monitoring environmental conditions in various settings such as factories, clean rooms, offices, and greenhouses. It provides accurate measurements with a humidity range of 10% to 95% and a temperature range of -4 to 140°F (-20 to 60°C). The device also includes indicators for low battery and overrange conditions, as well as a data hold function to freeze readings on the display.
| Humidity Range | 10% to 95% |
|---|---|
| Humidity Resolution | 0.1% |
| Humidity Accuracy | ±3% (30% to 95%) ±5% (10% to 30%) |
| Temperature Range | -4 to 140°F (-20 to 60°C) |
| Temperature Resolution | 0.1° |
| Dimensions | 5.9 x 2.8 x 1.4" (150 x 72 x 35mm) |
| Weight | 8.3oz. (235g) |
| Datalogger Capacity (EA25) | 15,000 records |
The device can display any two parameters simultaneously: Temperature and Humidity, or Dew Point, or Wet Bulb.
The package includes the unit with a built-in stand, a protective holster, a probe, and 6 AAA batteries.
Yes, the device has switchable °C/°F temperature units.