Replacement Gecko temperature sensor, 10ft long, with 3/8 inch probe, and 4-pin female connector. OEM part number 9920-400125.
SpaGuts P/N: 25-150-1203
This temperature sensor is compatible with the following Gecko and Hydro Quip circuit boards: 33-0014A-R8-K (Revision 1 thru 8), 0103-100010, Baja Spa SC650 ECO1 System Model Z0BKBC-0300LEX CODE BAJ01-4022-32
This Temperature Sensor is also a replacement option for the following part numbers: 34-0203, 34-0203-K, 5-60-6018, 59-337-1220, 9735-417, 9920-400747, 59-355-1000, 5-60-7006, 9286-08
This item comes with a 90-Day limited warranty. This item is NON-Returnable.
NOTE1: The circuit board may only show 3 pins with a space for the 4th pin. The temperature sensor with 4-pin connector will fit.
NOTE2: The temperature sensor being supplied may have 2 (black, red) or 3 (black, red, green) wires connected on the 4-pin connector. The green wire may or may not be attached to the 4-pin connector (which is a dummy wire). DO NOT worry if the green wire is present or not on the 4-pin connector. Either configuration will work.
When selecting your spa or hot tub sensor, it’s critical that you go by part numbers and not just by appearances. The part number on a sensor can be found on a white or silver label located directly on the senor cable (The ID label may also be located on the casing of the sensor). Buy based on this part number. Do NOT purchase a hot tub sensor just because it looks the same as the one you’re replacing. Spa and hot tub sensors can look identical, but have different resistant and material to work with different spa and hot tub controllers or circuit boards. ALSO pay attention to the type of cable plug that is on the end of the sensor cable. Different spa and hot tub sensors use a certain type of cable plug that plugs into compatible spa and hot tub controllers or circuit boards.