User Guide

Specifications subject to change without notice.
Copyright © 2009 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
5/5/09 - R1
Rugged 4-in-1 meter
Measures Humidity, Temperature, Air Velocity and Light
Pocket Hygro-Thermo-Anemometer-Light Meter
Ordering Information:
45170 ..........................Pocket Hygro-Thermometer-Anemometer-Light Meter
TP870 ..........................Type K Bead Wire Thermocouple
409992 ........................Vinyl Pouch Carrying Case
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
• High temperature measurements using
Type K thermocouple
• 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 overrange indication
• Complete with built-in Humidity sensor, Light sensor
and Vane wheel, wrist strap, and 9V battery.
(Optional Type K thermocouple probe)
Measurements Range Resolution Basic Accuracy (Full Scale)
Air Velocity
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
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 0.1°F ±2.5°F
0 to 50°C 0.1°C ±1.2°C
% Relative Humidity 10 to 95%RH 0.1%RH ±4%RH of reading
Temperature (thermistor) 32 to 122°F 0.1°F ±2.5°F
0 to 50°C 0.1°C ±1.2°C
Temperature (Type K) -148°F to 2372°F 0.1°F ±(1%+2°F) of reading
-100°C to 1300°C 0.1°C ±(1%+1°C) of reading
Power 9V battery
Dimensions Meter: 6.1 x 2.4 x 1.3" (156 x 60 x 33mm); Vane: 1.2" (31mm)
Weight 5oz (160g)
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
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