Features: Compatibility: This temperature sensor is a replacement part for spa temperature sensors, compatible with various hot tub models. The temp sensor is designed to ensure your spa system maintains the desired temperature. Compatible with the following models: - 2007+ J-270, J-280, J-355, J-365, and J-375 - 2005+ J-210, J-220, and J-230, J-200 LED Models - 2005–2007 J-325 - 2004+ J-335, J-345 - 2003–2005 Del Sol Models - 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 part numbers: 6600-138, 6600-105, and 6600-182 (stainless steel with box end connectors). For inground spas without a skirt, refer to model 6600-169. Function: This hot tub temperature sensor helps resolve common error codes such as OH or ICE on Sundance spa control panels. Installation: Easy to install. Disconnect the old sensor and connect the new spa temperature sensor by splicing the wires and routing them back to the control board. Specifications: - Part Name: Temp Sensor - Part Number: 6600-166 - Material: Non-woven fabric - Color: Black Package Contents: 1 x Temp Sensor Note: Light reflection and differences in display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1–3 cm.