Introducing liquids or corrosive gases will cause permanent damage to the stainless steel sensor components

The output signal is linearly proportional to the input pressure

providing the robust performance required for high-tonnage heat pumps and air handlers

Ensure the probe penetrates at least 1 inch past any duct insulation to avoid false readings from wall temperatures

Belimo 22DTH-51ML Sensor 321702-401 Introducing liquids or corrosive gasesThe Belimo 22DTH 51ML is a high precision duct sensor engineered for demanding HVACR environments that require integrated humidity and temperature monitoring. This unit features a selectable 0 5V or 0 10V active output for humidity, alongside a passive NTC10k2 (10k type 2) thermistor for accurate temperature feedback. Built with a polymer capacitive sensor and a stainless steel wire mesh filter, it ensures long term stability and resistance to