The humidity of environmental test chamber, aging test chamber and other equipments is a very important monitoring parameter. There are extreme high and low temperature and high humidity environment during the operation of equipment, which brings great challenges to humidity measurement. The humidity-sensitive element of PTH40 humidity probe is a high molecular humidity-sensitive capacitor, together with PT1000 temperature-sensitive element, which can provide temperature compensation to ensure accurate measurement.

PTH40 is a split probe-type structure with the split cable length of 2m, the transmitter shell is Aluminum alloy, the sheath material is high temperature resistant PTFE, and the probe operating temperature range can reach -70~180℃. In addition, the probe uses a small package to facilitate to install on the equipment. The probe filter is a fast-responding PTFE filter that resists high temperatures and chemical contamination.