Ametek Crystal 4491 RTD Probe, -40 to 100°C (-40 to 212°F) w/4m Cable Length.
The 4991 is a class B, stainless steel, Pt100 RTD probe with a temperature range of -40 to 100°C (-40 to 212°F). The sensor is 4” x 4 mm diameter. The coiled cable is 4m. long. It connects via a male LEMO 6 pole fitting used by various devices including the Crystal HPC40/50 series calibrators and the Crystal nVision RTD100 temperature module.