Extech Model 45170 Includes:
- Built-in Humidity sensor
- Light sensor and Vane wheel
- Wrist strap
- 9V battery
- Optional Type K thermocouple probe
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| Extech 4-in-1 Humidity, Temperature, Air Velocity and Light Meter |
| 45170 |
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$189.99 |
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Extech Model 45170 Features:
- Ergonomic pocket size housing with large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity
- Characters on display reverse direction depending on Hygro-Thermo-Anemometer or Light Mode
- Data Hold to freeze the displayed value
- Records Min/Max readings
- Built-in low friction vane wheel improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots
- Built-in precision thin-film capacitance humidity sensor for fast response
- Built in thermistor for ambient temperature measurements
- Type K input measures temperature to 2372° (1300°C) using optional Type K probe
- Utilizes precision photo diode and color correction filter
- Cosine and color corrected light measurements
- Defaults to last function when powered off
- Auto power off 10 minutes after last key is pressed with disable feature
- Low Battery and over range indication
| Measurements |
Range |
Resolution |
Basic Accuracy (Full Scale) |
| Air Velocity |
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| ft/min (feet per minute) |
80 to 5910 ft/min |
10ft/min |
±3% |
| m/s (meters per second) |
0.4 to 30m/s |
0.1m/s |
±3% |
| km/h (kilometers per hour) |
1.4 to 108km/h |
0.1km/h |
±3% |
| MPH (miles per hour) |
0.9 to 67MPH |
0.1MPH |
±3% |
| knots (nautical miles per hour) |
0.8 to 58.3 knots |
0.1knots |
±3% |
| Light |
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| Foot Candles |
0 to 1860Fc |
0.1Fc |
±(5% rdg + 8 digits) |
| Lux |
0 to 20,000Lux |
1Lux |
±(5% rdg + 8 digits) |
| Temperature (thermistor) |
32 to 122°F
0 to 50°C |
0.1°F
0.1°C |
±2.5°F
±1.2°C |
| % Relative Humidity |
10 to 95%RH |
0.1%RH |
±4%RH of reading |
| Temperature (thermistor) |
32 to 122°F
0 to 50°C |
0.1°F
0.1°C |
±2.5°F
±1.2°C |
| Temperature (Type K) |
-148°F to 2372°F
-100°C to 1300°C |
0.1°F
0.1°C |
±(1%+2°F) of reading
±(1%+1°C) of reading |
| Power |
9V battery |
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| Dimensions |
Meter: 6.1 x 2.4 x 1.3" (156 x 60 x 33mm)
Vane: 1.2" (31mm) |
| Weight |
5oz (160g) |
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Extech Instruments Index 
