Parts Temp Probe (Ruby Pro) PreviousTemp Probe (Weldless) NextShielded Temp Probe (Ruby Pro) Temp Probe (Ruby Pro) Temp Probe (Ruby Pro) $50.00 These temp probes are replacements for the Ruby Pro systems. They are 1 1/2” Tri-clamp with an M12 type connection Sold Out Add To Cart Facebook0 Twitter You Might Also Like Sensor Cable (3 meter) - Fits Ruby Pro Electric Systems $20.00 Temp Probe (1/2 NPT) $38.00 Sensor cable (for gas fired systems) - Old Style (different ends) from $28.00 Shielded Temp Probe (Ruby Pro) $55.00 Sensor Cable (5 meter) - Fits Ruby Pro Electric Systems $36.00