the auto-reset mechanism restores the circuit

this specific model is designed for 24V control circuits

It is designed for standard sensing bulbs used in pneumatic and electric systems

Durable Construction: Genuine Factory Authorized Part quality avoids the communication errors typical of after-market versions

Johnson Controls A99BB-25 Temperature Sensor the auto-reset mechanism restores theThe Johnson Controls A99BB 25 Temperature Sensor is a high accuracy PTC silicon sensor designed for precision monitoring in commercial refrigeration and HVAC applications. This passive Positive Temperature Coefficient sensing element provides a reference resistance of 1,035 ohms at 77? F (25? C), ensuring reliable data for system 450 controls, A419, and A421 series modules. The sensor is constructed with a stainless steel bulb and a 9 3 4 inch PVC