• MO290
  • Manufacturer has 50 in stock
    This stock is typically available to ship in 3 - 5 working days.



  • Measures ambient and surface temperature and humidity
  • Pinless Moisture: 0 to 99.9 (Relative)
  • Pinless Depth: up to 0.75" (19mm)
  • Pin-type Moisture (probe included): 0 to 99.9%
  • Max Resolution: 0.1, 0.1°F/°C
  • Humidity: 0 to 100%RH
  • Temperature (Air): -20 to 170°F (-29 to 77°C)
  • Temperature (IR): -4 to 392°F (-20 to 200°C)
  • Vapor Pressure: 0 to 20.0kPA
  • Dew Point: -22 to 199°F (-30 to 100°C)
  • Mixing Ratio: 0 to 999GPP (0 to 160g/kg)
  • Field of View: 8:1 Distance to Target ratio
  • Emissivity: 0.95 fixed
  • Dimensions: 6.5x2.8x1.5" (165x70x38)
  • Weight: 7.4oz (210g)

What's in the Box

  • Pin moisture probe with cable
  • 9V battery
  • Case


Extech MO290 Series moisture meters monitor moisture in wood and other building materials with virtually no surface damage with the pinless moisture sensor (pin-type moisture probe included). The Extech MO290 Series moisture meter can also measure humidity and air temperature with built-in probe plus non-contact infrared temperature with patented IR design.

Other features of the pinless Extech MO290 Series moisture meters include an easy-to-read, large dual display with automatic backlight feature, pinless measurement depth to 0.75" (19mm) below the surface, and programmable high/low moisture and humidity alarms. The Extech MO290 Series moisture meter features a patented IR circuit design to measure non-contact surface temperature with an 8:1 distance to spot ratio with 0.95 fixed emissivity.


This product can be used in the following applications: