This temperature sensor mounts on Watkins Group spas manufactured prior to 2002, including Hot Spring, Tiger River and Caldera brands.
The manufacturer recommends that you change the Hi-Limit sensor at the same time, as it has a similar life span.
Cable length: 104 cm
Probe diameter: 6 mm (15 mm at the thread)
Plug : 2 pin female plug
Hot Spring : Grandee, Jetsetter, Prodigy, Sovereign, Classic between 1997 and 2000
Tiger River : Bengal, Siberian, Sumatran, Tondi, Khyber, Manora between 1997 and 2000
Hot Spring/Watkins: 38415