Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)
The pocket-sized, four-in-one Extech 45170 hygro-thermo-anemometer-light meter displays temperature and gives you a choice between showing relative humidity or air velocity. Temperature air or surface measurements can be made using the built-in Type K input (thermocouple probe sold separately). Additionally, the 45170 includes a light sensor, and its display reverses when in light mode.
The 45170 features a built in thermistor for ambient temperature measurements and a precision thin-film capacitance humidity sensor for fast response. The low friction vane wheel improves accuracy when measuring air velocity in ft/min, mph, m/s, km/h, and knots. For light measurement, the 45170 utilizes a precision photo diode and color correction filter and can provide cosine and color corrected light measurements. Other features include recording of minimum/maximum readings, a Data Hold function to freeze the displayed value, auto power off, and low battery indication.
The device has a temperature range of 32 to 122 degrees F, a humidity range of 10 to 95 percent relative humidity (RH), and light measurement capabilities of up to 1860 foot candles or 20,000 lux. Additionally, it offers the following air velocity measurement ranges:The 45170 measures 6.1 x 2.4 x 1.3 inches (HxWxD), weighs 5 ounces, and is powered by a single 9-volt battery. It's backed by a one-year limited warranty.
45170 Hygro-Thermo-Anemometer-Light Meter, wrist strap, 9-volt battery, operating instructions
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