Hi-Limit/Temp Sensor Kit 3401395K for Watkins Hot Springs Spa Heater 39525/39530
Fitment:
Fit for Hot Spring, for Tiger River, for Limelight Spas 2002-Current. For Hot Spring 2005-2006 Accolade, 2004-current Vista and Envoy, 2002-current Grandee, Jetsetter, Prodigy, Sovereign and Vanguard. For Hot Spring 2003 Highlife, 2002-2003 Landmark and 2002 Sovereign ILE (limited edition). For Tiger River 2002-current Bengal and Sumatran, 2002-2004 Siberian and 2003-current Caspian spa models
Features:
1) Thermistors need to be replaced in pairs. If the difference in temperature sensing between the new thermistor and the old thermistor exceeds five degrees, the system will enter "failure mode."
1) Thermistors need to be replaced in pairs. If the difference in temperature sensing between the new thermistor and the old thermistor exceeds five degrees, the system will enter "failure mode."
2) Molex to AMP plug adapter cable not included with kit. Not compatible replacement for pre-2002 model years as they require the old style larger AMP connectors
3) This high-limit thermistor sensor is a safety device designed to communicate with the system to shut down the heater if the water temperature exiting your heater exceeds 118 degrees F
4) Made of excellent quality copper, the sheath is made of PVC (Polyvinyl chloride) material, it has superior performance and corrosion resistance
5) It simply screws into the No Fault Heater Housing (hand tight only) and then plugs into the outside of the spa’s control box. If your existing thermistor plugs directly onto the main circuit board (motherboard) inside the IQ2020 control box. Always replace thermistors in pairs (79005 & 79006)
6) Cable length (temperature): 100 cm; Cable length (Hi-Limit): 96 cm; Temperature sensor diameter: 6 mm (12 mm at the thread); Hi-Limit sensor diameter: 7 mm (15 mm at the thread)
Package included:
1/2" thread Hi-limit Sensor w/2-Pin Molex connector & O-ring (small port). 5/8" thread Temp Sensor w/4-Pin Molex connector & O-ring (larger port) 
