Testo 0636 2135 Thin Humidity Probe

Order-Nr.  0636 2135

Equilibrium moisture content is ideally measured in a borehole in the material. The thin humidity probe with a probe shaft diameter of 4 mm (connected to an appropriate measuring instrument) is good to use here, so as to keep the borehole as small as possible. It should be protected against contamination by a PTFE cap during measurement. The borehole can easily be sealed with adhesive modeling clay.

The attached measuring instrument (testo 635) automatically calculates the material moisture based on the measured equilibrium moisture content and shows this in the display. The material moisture calculation is available for the following materials: concrete, high-insulation brick, solid brick, hardwood, softwood, aerated concrete, particle board, calcium sulfate flowing screed, cement flowing screed, and lime sand brick.

Testo 0636 2135 Thin Humidity Probe Specifications:

Temperature – NTC

• Measuring range : 0 to +40 °C

Accuracy :

• ±0.2 °C *Please also take into account the device uncertainty.

Humidity – Capacitive

• Measuring range : 0 to +100 %RH

Accuracy :

• ±2 %RH at +25 °C (+2 to +98 %RH)
• ±0.15 %RH/K (k=1)
• long-term stability: ±1 %RH / year

*The sensor accuracy corresponds to the system accuracy.

General technical data

• Length probe shaft: 60 mm
• Diameter probe shaft: 4 mm