Replacement fuses 3 pack Herpstat 1 and Herpstat 1 Basic Three pack of 5x20mm 6.3Amp Fast Acting Fuses for the Herpstat 1 Basic and Herpstat 1. Herpstat 2 Three pack of 5x20mm 8.0Amp Fast Acting Fuses...

Herpstat Humidity Probe This humidity probe is compatible with the SpyderWeb series units and standard models that have firmware version 5.0 or greater. All Herpstat 1 SpyderWeb All Herpstat 2 SpyderWeb...

Replacement Temperature Probe (Steel Tipped Probes) The new steel tipped probes are epoxy sealed to increase water resistance. The steel tip also transfers temperature change faster which can be beneficial...

Temperature Probe Extension This extension works with new style temperature probes and is 12ft long. This will not work with the Herpstat Humidity controller. 8.25% Sale Tax Applies to all Texas resid...