Features: Compatibility: This temperature sensor is a replacement part for Spa Temperature Sensor -- Fit for and for Hot Tub. Temp Sensor is a reliable for hot tub heater sensor designed to your spa system runs at the desired temperature. Temp Sensor Use for Hot Tub -- 2007+ J-270, J-280, J-355, J-365 and J-375 Models, 2005+ J-210, J-220 and J-230, J-200 LED Models, 2005-2007 J-325 Models, 2004+ J-335, J-345 Models, 2003-2005 Del Sol Models, 2002-2003 J-320, J-330, J-340 Models, 2002+ J-300 Solve Water Temp Problem: This for hot tub temperature sensor is essential for fixing error display issues, such as OH, or ICE on your for Sundance spa for hot tub. Easy Installation: cut off the old temperature sensor in the for hot tub and tape the old wire to the new spa temperature sensor wire, then feed it back to the control board. Temperature Sensor for : Suitable for models such as (2012+), 880 Systems (2005+), 850 Systems (1997-2005), 400,600,600-S,750, 800, and 850 Systems. It is also compatible with Suncoast (1992), Suntub SVDV Systems (496-498), and 850 Systems (1997+). Replaces #6600-138 and 6600-105 (not shown). Interchangeable with 6600-182 sensor (stainless steel) with box end connectors. For Inground Spas without a skirt, please see 6600-169.Temperature Sensor for hot tub: Designed for J-300 LCD Series (2002+), J-350, J-360, J-380 (2002-2003), J-355, J-365, J-375, J-385 (2004-2006), and all J-400 Models (2006-2009). Specifications: Part Name:Temp Sensor Fitment:6600-166 Material: non-woven fabric colour: black Package Contents: 1 x Temp Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.