Amprobe® Test Tools introduces the THWD-3, a relative
humidity temperature reader that allows HVAC technicians to maintain optimal
comfort levels for building occupants throughout the year. According to the
company, the THWD-3 uses a precision capacitance sensor to deliver
high-accuracy performance with long-term stability. The instrument measures the
full range of relative humidity from 0-to-100 percent and features a wide
ambient temperature measurement range from -20°C (-4°F) to 60°C (140°F).
Amprobe Test Tools, P. O. Box 9090, Everett, WA 98206;