The HWTA2 contains a PT100 probe, the PT100 resistance value will change with temperature, and the HWTA2 internal circuit converts its value into a linear analog output. Simple installation, a variety of ranges are optional, a variety of specifications of the probe is optional, all stainless steel housing, compact structure. Field meter and cabinet control table are also available. Gas-liquid dual-use, can be used in water supply system, hydraulic, pneumatic system, cooling system, heating system, air conditioning system, automation engineering and so on.