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Data Sheet
THWD-10W
RH Meter with Wireless
Perform precision temperature and humidity measurement for
HVAC, Indoor Air Quality and environmental applications. The
large LCD display, full suite of measuring features and two
temperature probes (internal and external) make this product a
preferred choice for a professional.
Wireless two ways transmission
Highly stable humidity measurement ±2.5%
Processing relative humidity and temperature measurements
simultaneously
Two temperature sensors (internal and external)
Wet/dry bulb, dew point measurement
Easy selection between K/NTC/K-DP
No hassle
warranty
No waiting.
No shipping
charges.
Our commitment to
high-quality products
and customer service
is demonstrated by
our industry exclusive
“No Hassle” warranty.
In the unlikely event
that an Amprobe Test
Tool requires warranty
service, any of our
local dealers are
authorized to replace
it, on the spot.
(note: $500 MSLP limit)
MAX/MIN/Average/Relative Zero and HOLD functions
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THWD-10W RH Meter with Wireless
General Specifications
Display 5 digit liquid crystal display (LCD).
Polarity Automatic, positive implied, negative polarity indication.
Low Battery Indication The “
Operating Environment 0°C to 50°C (32°F to 122°F) <80% R.H.
Auto Power Off 5 minutes
Storage Environment -20°C to 60°C (-4°F to 140°F) <70% R.H. with battery removed from meter
Accuracy Stated accuracy at 23°C ±5°C, <75% R.H.
Battery 1.5Vx4pcs AAA size.
Battery Life 200 hours typical
Dimensions L241.3 X W157.98 XH76.2mm (9.5 X 6.22 X3 in).
Weight Approx. 304g (0.67 lb) including batteries.
WIRELESS Features
Frequency Range 910~920MHz.
Low current consumption less than 1mA.
The transmitting distance can reach 25M without magnetic interference.
” is displayed when the battery voltage drops below the operating level.
Data Sheet
Amprobe® Test Tools
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THWD-10W RH Meter with Wireless
Data Sheet
Electrical Specifications
Temperature Scale Celsius or Fahrenheit user-selectable
Measurement Range K-Type -50°C to 1000°C, (-50°F to 1832°F)
Resolution 0.1°C or 0.2°F
Accuracy Accuracy is specified for operating temperatures over the range of 18°C to 28°C (64°F to 82°F), for 1
year, not including thermocouple error. ±(0.1% rdg + 1°C) on -50°C to 1000°C ±(0.1% rdg + 2°F) on
-50°F to 1832°F ±(0.05% rdg + 1.4°F) -58°F to -328°F
Sensor Thermistor temperature sensor
Range 0°C to 60°C, (32°F to 140°F)
Resolution 0.1°C/°F
Accuracy ±2°C on 0°C to 10°C ±0.5°C on 10°C to 45°C ±2°C on 45°C to 60°C ±4°F on 32°F to 50°F ±1°F on 50°F to
113°F ±4°F on 113°F to 140°F
RELATIVE HUMIDITY
Sensor Capacitive Humidity Sensor
Range 0% to 100% RH
Accuracy ±2.5% at 25°C (77°F), 10% to 90% RH,
±5% at 25°C (77°F), 0% to 10% RH,
90% to 100% RH
Sensor Response Time 60 sec typical
for 90% of Total Range
Sensor Hysteresis ±1%RH typical
(excursion of 10% to 90% to 10% RH)
Temperature 0.1 times the applicable accuracy
Coefficient Specification per °C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F).
Input Protection 24V dc or 24V ac rms maximum input Voltage on any combination of input pins.
Input Connector Accepts standard miniature thermocouple connectors (flat blades spaced 7.9mm, center to center).
Amprobe® Test Tools
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THWD-10W RH Meter with Wireless
Data Sheet
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE
Amprobe® Test Tools
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2010 Amprobe Test Tools . All righ ts reserved.
6/2010 TH WD-10W_ DS Rev A
www.Amprobe.com
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