InterNACHI Members, please click here for ordering instructions Take quick moisture measurements from a variety of building materials using either the pin or pinless (non-invasive) method with the Extech MO55A. This easy-to-use moisture meter features a high-contrast color LCD with backlight for clear visibility in any environment. It uses intuitive display icons to indicate moisture levels and provides an audible alert that speeds up as moisture increases. Ideal for building restoration projects and applications where detecting moisture on floors, tiles, and under carpets is critical, the MO55A is also essential for analyzing the after-effects of water leakage behind walls and in ceilings. Specifications GeneralAdditional Details High-Contrast Color LCD Bright backlight makes for easy viewing in any lighting condition. Detect Moisture Across Critical Surfaces Displays moisture levels in wood and building materials such as wall board, sheet rock, cardboard plaster, concrete, and mortar General Measurement Depth: Pinless < 25 mm (1 in) Measurement Principle: Electrical resistance (pins); Capacitance (pinless) 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% Relative Moisture Content (Pinless): Wood: 0.0% to 99.9%Other building materials: 0.0% to 99.9%up to 25 mm (1 in) deep various with material under test Sensor Type: Replaceable threaded contact pins, 8 mm (0.3 in); non-penetrating electromagnetic sensor pad. 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: Auto Power Off after approx. 3 minutes Warranty: 2 years Weight: 151 g (0.33 lb) excluding batteries Support Documents Datasheet User Manual
