Description: Portable Digital Theromo-Hygrometer, Model TRH-CA Series is a portable, and battery operated instrument. It is used to measure relative humidity and temperature. This instrument also calculates and displays either dew point or wet bulb temperature. It has a large, three line LCD unit that can be adjusted through a 120º viewing angle. The unit can be held in hand, or attached to belt or tripod for hands-free operation. It provides up to 40 hours of continuous operation on a 9 V battery. The polymer resistive RH sensor of this unit has exceptional long-term stability and high degree of resistance to most contaminants. Model TRH-CA allows the user to verify its accuracy and if necessary, recalibrate with two external pushbuttons - one foir 33% rh and other for 75% rh. The sensor can be easily interchanged via a simple ROM replacement.
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