Ampro Corporation TH-3, THWD-3 user manual Safety Information, Symbols Used in this Manual

The THWD-3 and TH-3 are instruments to measure relative humidity and temperature. The extended probe allows the user to make measurements inside ducts or hard to reach areas. The Relative and MIN/MAX functions enable measurements to be made in two different areas and then compared. The large dual display and Data Hold function both make viewing the measurement results convenient. Both models utilize a capacitive sensor for humidity measure temperature in °C or °F with 0.1 %RH resolution. Both meters utilizes a capacitive sensor for humidity measurements up to 100% with a tenth percent resolution. With an auto power off feature to save battery life, protective cap for sensor life, vinyl carry case for transportation and battery installed, the TH-3 is the right choice for your atmospheric humidity measurement needs. Model THWD-3 has two extra features with the capability to also indicate Dew Point and Wet Bulb readings.

Safety Information

This meter has been designed and tested according to:

•EN50081-2

•EN50082-2

Symbols Used in this Manual

�	Caution ! Refer to the explanation in this Manual
�	Caution ! Risk of electric shock
�	Conforms to relevant Australian standards
�	Complies with European Directives
�	Power ON / OFF
�	Do not dispose of this product as unsorted municipal
	waste

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