These new steel tipped probes are epoxy sealed to increase water resistance. The steel tip also transfers temperature change faster which can be beneficial in setups where the probe is monitoring air temp like incubators. 12ft length.
This style temperature probe will work with:
Herpstat Intro or Intro+
Herpstat 1 Basic
Any Redline model
Also works with the following discontinued models:
Original model Herpstats with a serial number of 50102600 or greater. Original model Herpstats (front of unit is green and serial number starts with 5010xxxx) with a serial number between 50101000 and 50102600 require an older style probe that is no longer available.