measure the relative humidity and the temperature in two different locations with the help of
two humidity sensors th-1. the PLs 1000 uses these values to determine the
absolute humidity and the respective dew points. Based on these values and 5
different functions (modes), humidity and temperature switching points can be
set. Fans for incoming air and exhaust air can be controlled directly through
4 integrated potential-free relays. typical applications are the measurement of
humidity and temperature, automatic ventilation, the drying or humidifying of
rooms, manual control of room fans and the setup of a 2-channel temperature
and humidity switch.