Amprobe THWD-3 Relative Humidity Accy

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THWD-3 Relative Humidity Temperature Meter

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.

THWD-3 Relative Humidity Temperature Meter

Features

Dual display.
Extended probe stem to easily access air ducts.
Dew Point.
Wet Bulb.
Min/Max readings.
Data Hold.
Capacitive sensor with protective cover.
Auto Power off.
Carrying Case.

safety Conformity

Specifications

Function	Range	Accuracy
Humidity Measurement	0% R.H. to 100% R.H.	±3% R.H. at 23°C
Humidity Measurement	5% R.H. to 95% R.H.	±5% R.H. at 23°C
Temperature Coefficient		0.1 x specified accuracy/°C,23°C, >23°C
Resolution	0.1% R.H.
Temperature (Dry Bulb)	-20°C to 60°C	±0.8°C
Temperature (Dry Bulb)	-4°F to 140°F	±1.6°F
Dew Point (DP)	-20°C to 60°C	±0.8°C
Dew Point (DP)	-4°F to 140°F	±1.6°F
Wet Bulb (WB)	-20°C to 60°C	±0.8°C
Wet Bulb (WB)	-4°F to 140°F	±1.6°F
Resolution	0.1°C/0.1°F
Response Time (in slowly moving air)
Humidity	180 seconds
Temperature	10 seconds

General Specifications

Display	3-1/2 LCD dual display
Operating Temperature	0°C to 40°C
Storage Temperature	-10°C to 60°C; <70% R.H.
Sample Rate	2.5 times per second
Power Supply	9 Volt battery. Types NEDA 1604 or JIS 006P or IEC 6F22
Battery Life	85 hours continuous (with Alkaline battery)
Dimension	240mm (L) x 54mm (W) x 34mm (D) 9.5" (L) x 2.1" (W) x 1.3" (D)
Weight	180 gms (6.4 oz) approximately

Included Accessories

Complete with Soft Carrying Case,9V battery installed, sensor cover and Users Manual.