Gecko Regulation Temperature Probe - Std

Main in-water temperature probe - used on Gecko Microspa, SSPA and MSPA-MP electronic spa packs & S-Class and M-Class Spa Builders spa packs. 
Not used in older MSPA-1 spa packs (white metal boxes - but don't confuse with USA supplied Spa builders SSPA white boxes, which do use this sensor) 
3m cord
May be fitted with 2 or 3 wires (either version works the same)