Extech MO290 - Pin & Pinless Moisture Meter Psychrometer + IR

Complete your toolbox with the Extech moisture meter MO290 8-in-1 pin/pinless Moisture Meter with Built-in IR Thermometer

The Extech MO290 combines a pin/pinless moisture meter with a built-in infrared thermometer, allowing you to measure temperature, humidity, dew point, vapor pressure, and much more. Comes complete with pin moisture probe, 9-Volt battery, and case.

• Pin & Pinless Moisture Detection – Choose between invasive or non-invasive readings up to 0.75" (19mm) deep. 

• Built in Psycrhometer - Measures Relative Humidity, Air Temperature, Grains Per Pound/Gram, Dew Point, Vapor Pressure, Condensation Point
  
  

• Built-in Infrared Thermometer – Measures surface temperature from -4 to 392°F with an 8:1 distance-to-spot ratio.

• Fast, Audible Moisture Alerts – Beeps faster as moisture increases; icons display low/med/high moisture content instantly.

• High Accuracy for Critical Jobs – Moisture accuracy of ±5% (pin) and ±3% RH, with resolution down to 0.1%.

• Compact, Rugged Design – Lightweight at 7.4 oz, includes battery, pin probe, and durable carrying case.

• Replaceable Sensor Options – Threaded pin contacts and non-invasive pad ensure long-term usability on various materials.

• Auto Verification Functions – Includes battery level check and measurement verification for field reliability.

Product Video

Specifications

Dew Point

-22 to 199 °F (-30 to 100 °C)

Distance to Target Ratio

8:1

Emissivity

0.95 fixed

Measurement Depth

up to 0.75" (19mm)

Relative Humidity

0 to 100%

Relative Humidity Basic Accuracy

±3%

Relative Moisture Content (Pinless)

6 to 99.9

Relative Moisture Content Max Resolution (Pinless)

0.1

Sensor Type

Replaceable threaded contact pins, non-penetrating electromagnetic sensor pad

Temperature (Air)

-20 to 170 °F (-29 to 77 °C)

Temperature (Air) Basic Accuracy

±3.6°F (2.0°C)

Temperature (Air) Max Resolution

0.1°F/°C

Temperature (IR) Basic Accuracy

-4 to 392 °F (-20 to 200 °C)

Temperature (IR) Max Resolution

±3.5% or ±9°F(4.5°C) whichever greater

Temperature (RTD)

0.1°F/°C

Vapor Pressure

0 to 20.0kPA

Water Vapor

0 to 999gpp (0 to 160g/kg)

WME Moisture Content (Pin)

0 to 99.9%

WME Moisture Content Basic Accuracy (Pin)

±5%

WME Moisture Content Max Resolution (Pin)

0.1

Additional Details

Certifications

CE

Dimensions

6.5 × 2.8 × 1.5" (165 × 70 × 38)

Power

1 × 9V battery

Warranty

2 years

Weight

7.4oz (210g)

Warranty & Returns

Warranty & Return Info (PDF)

This vendor permits returns for issues covered in the warranty only, such as repairs for defective items.