Features: Compatibility: This temperature sensor is a replacement part for Spa Temperature Sensor, compatible with various hot tub models. The temp sensor is a reliable hot tub heater sensor designed to ensure your spa system maintains the desired temperature. Compatible with the following models: - 2007+ J-270, J-280, J-355, J-365, J-375 - 2005+ J-210, J-220, J-230, J-200 LED - 2005–2007 J-325 - 2004+ J-335, J-345 - 2003–2005 Del Sol - 2002–2003 J-320, J-330, J-340 - J-300 LCD Series (2002+) - J-350, J-360, J-380 (2002–2003) - J-355, J-365, J-375, J-385 (2004–2006) - All J-400 Models (2006–2009) - (2012+) - 880 Systems (2005+) - 850 Systems (1997–2005) - 400, 600, 600-S, 750, 800, and 850 Systems - Suncoast (1992) - Suntub SVDV Systems (496–498) - 850 Systems (1997+) Replaces: #6600-138, 6600-105 Interchangeable with: 6600-182 sensor (stainless steel) with box end connectors For inground spas without a skirt, refer to model 6600-169 Solve Water Temperature Issues: This hot tub temperature sensor helps resolve common error codes such as OH or ICE on your spa display. Easy Installation: Remove the old temperature sensor and attach the old wire to the new spa temperature sensor wire using tape. Carefully feed the wire back to the control board. Part Name: Temp Sensor Fitment: 6600-166 Material: Non-woven fabric Color: Black Package Contents: 1 x Temp Sensor Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1–3 cm.