Heat Sensor Assembly Temp and Hi Limit 30337KIT QCA Balboa

Heat Sensor Assembly 30337KIT for hot tubs such as QCA Spas and Maax/Coleman Spas that use Balboa spa packs and typically have pressure switches instead of built-in sensors inside the heater.

4 pin connector type.  Set of 2 sensors in one wiring harness - a temperature sensor and a hi limit sensor..

Sensor diameters are 3/8" and 1/4".

96" Temperature sensor 3/8"dia, 31" Hi Limit sensor, 1/4"dia, 4-pin plug.

This is a 2 wire/2 wire sensor with 31 inch long hi limit sensor wire and 96 inch long temperature sensor wire.  The hi limit sensor typically attaches/clips into to the heater manifold which is usually attached to the spa pack, so the wire length for this sensor can be kept short.

This sensor set includes both the temperature and hi limit sensors.  The temperature sensor is mounted into a thermo-well in the hot tub shell and is used to measure spa water temperature. This water temperature sensor is mounted from underneath the spa cabinet.  The other sensor is a high limit sensor that is typically mounted under the flow-through electric heater usually located underneath the spa pack. 

This safety sensor assures the temperature of the heater does not become excessive. 

The sensor set plugs right into the Balboa circuit board.

 Replaces 30337 , 305104 , 34-0202D-K , 426167 , 610989 , 9711-27 , BAL30337 , BB30337KIT , HQP-851-9054

 30337 dual sensor KIT replaces 30288

We also offer the generic sensor set compatible with this one: see 34-30337-HQ-K.

Need a thermowell? See 400-4380.  There is also a sensor mount 52560 and 3231 strain relief if needed.