THWD-3 Relative Humidity Temperature Meter Data Sheet

THWD-3 Relative Humidity Temperature Meter Data Sheet
Data Sheet
Relative Humidity
Temperature Meter
■■ Dual
probe stem to
easily access air ducts
■■ Capacitive
■■ Dew
■■ Auto
■■ Min/Max
No waiting.
No shipping
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.
Data Hold
■■ Extended
■■ Wet
No hassle
sensor with
protective cover
Power off
■■ Carrying
■■ One
year warranty
The THWD-3 uses a precision capacitance sensor to deliver
accurate performance with long term stability. This high
accuracy instrument measures the full range of relative
humidity from 0% to 100% and features an exceptionally
wide ambient temperature measurement range from
-20 °C (-4 °F) to 60 °C (140 °F). The sensor is mounted on a
long shaft extending from the top surface of the unit,
making probing into ductwork and hard to reach areas
more easy. The large LCD displays two measurements
simultaneously with a full range of display options
including Hold, Min, Max, Dew Point (DP) and Wet Bulb
(WB). The THWD-3 comes with soft carrying case, sensor
cover, battery and manual.
Included Accessories
Carrying case, sensor cover,
battery (installed), users manual
(note: $500 MSLP limit)
Amprobe® Test Tools
Data Sheet
THWD-3 Relative Humidity Temperature Meter
General Specifications
Display Operating Conditions: Storage Conditions: Altitude Sample rate Battery Battery life Dimension Weight Dual display
0 °C to 40 °C
-10 °C to 60 °C; <70 % RH
Up to 2000 meters
2.5 times per second
9 V Battery, NEDA 1604 or JIS 006P or IEC6F22
85-hours continuous (with alkaline battery)
240 x 54 x 34 mm (9.5 x 2.1 x 1.3 in.)
Approximately 180 g (6.4 oz.)
Technical Specifications
Function Measurement Ranges
Humidity Temperature Coefficient:
Resolution Temperature (Dry Bulb)
Dew Point (DP)
Web Bulb (WB)
Response time (in slowly moving air)
Humidity Temperature Amprobe® Test Tools
email: [email protected]
Everett, WA 98203
Tel: 877-AMPROBE
Range 0 % RH to 100 % RH
5 % RH to 95 % RH: <5%RH, >95% RH
0.1 %RH
-20 °C to 60 °C: -4 °F to -140 °F -20 °C to 60 °C: -4 °F to -140 °F -20 °C to 60 °C: -4 °F to -140 °F 0.1 °C/0.1 °F
±3 % RH @ 23 °C
±5 % RH @ 23 °C
0.1 x specified accuracy/ °C <23 °C, >23 °C
±0.8 °C
±1.6 °F
±0.8 °C
±1.6 °F
±0.8 °C
±1.6 °F
180 sec
10 sec
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2007 Amprobe Test Tools. All rights reserved.
5/2007 3052169 EN-NP Rev A
Amprobe® Test Tools
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