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Extech - MO290 - Pin & Pinless Moisture Meter Psychrometer + IR

by Extech
$599.00
Optional NISTL Calibration Certificate
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Complete your toolbox with this 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.

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.

Free Shipping
30 Day Easy Returns No Restocking Fees
No Sales Tax Excluding Orders to Maine
Secure Checkout
Manufacturer Warranties
Authorized Dealer
Price Match Guarantee
Support 7 days a week
Fast Shipping
30 Day Easy Returns No Restocking Fees
No Sales Tax
Secure Checkout
Manufacturer Warranties
Authorized Dealer
Price Match Guarantee
Support 7 Days a Week
Description

Complete your toolbox with this 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.

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.

Why buy from us

- No sales tax! (Except for orders to Maine)
- Authorized Dealer
- 30 Day Easy Returns - No Restocking Fees!
- Manufacturer warranties
- Fast Shipping 
- Price Match Guarantee
- Bulk Order Quotations Available - Contact us
- Unlimited After Sale Support
- Great Service. We pride ourselves on our service. You can reach us 7 days a week.