Siemens Building Technology 536-778 Sensor R-407A providing precise environmental data without

providing precise environmental data without the labor-intensive process of pulling new thermostat wire

This model utilizes an internal equalizer design with sweat connections

This genuine AERCO OEM part is a specialized LWCO Capacitor Kit designed specifically for Low Water Cut-Off systems in high-efficiency AERCO boilers and water heaters

and TRR01729

This part number typically refers to the display module itself

Siemens Building Technology 536-778 Sensor R-407A providing precise environmental data withoutThe Siemens Building Technology 536 778 is a high precision outside air temperature sensor engineered for demanding building automation and HVAC control strategies. Utilizing a 100k Ohm NTC thermistor sensing element, this unit provides a highly stable resistance output that corresponds to ambient thermal changes, ensuring your building controller receives accurate data for outdoor reset and ventilation logic. Housed in a ruggedized metal enclosure,