Balboa 24" M7 sensors are fitted at each end of Balboa heaters. Length from tip of sensor to the small two pin plug is 24".
Balboa M7 Sensor 24 inch Temp Hi Limit 1/4 inch 2 Pin 30382 32016 30042
Balboa 24 " Heater M7 Sensor Probe - Hot Tub Spa Tube Spare Parts
Balboa M7 Heater Sensor 24" Hot tub Spa Part for Heater Tube
12" Balboa Heat Sensor Tube - Genuine M7 Hot Tub Heater Spa Replacement Part
Balboa Heat Sensor 12 " M7 Heater Tube 30344 - Hot Tub/Spa Spare Parts
Balboa 3.0kW Hot Tub Spa Heater M7 System GL Spa Pack Standard Coating
