Hi-Limit & Temperature Sensor Kit for Watkins Hot Spring® No-Fault heaters with threaded thermistor sensor ports as shown below. Compatible replacements for the 39530 temperature sensor and 39525 Hi-Limit sensor used in 2002 and newer No-Fault heaters.
Kit includes:
- 1/2″ thread Hi-limit Sensor w/2-Pin Molex connector & O-ring
- 5/8″ thread Temp Sensor w/4-Pin Molex connector & O-ring
- Sensor cable length is 36″
- Made by Hydroquip USA
Product note:Included Molex connectors fit model year 2002 and newer (associated part numbers 39525, 39530). Not compatible replacement for pre-2002 model years as they require the old style larger AMP connectors.







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