Extech MO50A

Compact Pin Moisture Meter

$59.99

The MO50A Compact Pin-Type Moisture Meter makes it easy to take quick reference measurements on wood and building materials. It features a high-contrast color LCD with backlight for clear viewing in any lighting condition, along with intuitive display icons and audible alerts that simplify moisture level interpretation. Ideal for building restoration work, the MO50A helps detect moisture in floors, under carpets, behind walls, and in ceilings—making it an essential tool for assessing damage after water leaks.

Bright backlight makes for easy viewing in any lighting condition

Displays moisture levels in wood and building materials such as wall board, sheet rock, cardboard plaster, concrete, and mortar

Tone rate beeps faster as the moisture level increases

Specifications

General
Measurement Principle	Electrical resistance using pins
Measurement Range	Wood: Low: 1.5% to 16.9% Medium: 12% to 15.9% High: 16% to 50% Building Material Low: 1.5% to 16.9% Medium: 17% to 19.9% High: 20% to 33%
Sensor Type	Replaceable threaded contact pins, 8 mm (0.3 in)
Storage Temperature Range	0°C to 50°C (32°F to 122°F); < 85% RH
WME Moisture Content (Pin)	Wood Range: 5.0% to 50.0% Building Material Range: 1.5% to 33.0%
WME Moisture Content Basic Accuracy (Pin)	±(3% + 5 digits) at 22°C to 25°C (72°F to 77°F)
WME Moisture Content Max Resolution (Pin)	0.1%

Additional Details
Battery Type	3 × 1.5 V, AAA batteries
Certifications	CE, UKCA
Dimensions	171.6 × 68 × 32.5 mm (6.7 × 2.7 × 1.3 in)
Display	Backlit Color LCD
Operating Conditions	5°C to 45°C (41°F to 113°F); < 80% RH
Power	After approx. 3 minutes
Warranty	2 years
Weight	151 g (0.33 lb) excluding batteries

Resources & Support

Datasheet

Extech MO50A Datasheet

Download

User Manual

Extech MO50A User Manual

Download

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.