PCE-WM1 is a multi-function metric thermo hygrometer used to determine relative humidity (% RH), absolute humidity (g/m³), air temperature, dew-point temperature and surface temperature (°C). This Metric-only measuring instrument comes complete with an external sensor probe for taking the surface temperature of different materials.

• Temperature range: -20 … 80°C 
• Relative humidity range: 10 … 95% RH
• Absolute humidity range: 0.5 … 74.4 g/m³