Dwyer's RHP-E/N Wall Mount Transmitter measures humidity, temperature and dew point
Dwyer Instruments' series RHP-E/N Wall Mount Humidity/Temperature/Dew Point Transmitter features housing that is vented to provide air flow across the sensor. An optional LCD display can be integral to the transmitter or a remote display can be ordered for building balancing or LEED validation. The LCD display indicates the ambient temperature along with the humidity or dew point. The transmitter has internal dip switches to select the temperature engineering units and whether the transmitter outputs humidity or dew point. The humidity and temperature sensors are field replaceable to reduce service cost and inventory. The humidity and the dew point are measured using a capacitive polymer sensor that completely recovers from 100% saturation. The humidity and dew point can have either a current or voltage output, while the optional temperature output can be a current, voltage, RTD or thermistor. For models with current or voltage for the temperature output, the temperature range is field selectable.