The Extech MO55A is a versatile dual-moisture meter designed for fast and reliable moisture measurement in wood and various building materials. The device combines two measurement methods in a compact housing: invasive measurement using probes and non-destructive, capacitive measurement in pinless mode. This makes the MO55A ideal for a wide range of applications in construction, renovation, and damage analysis.
Thanks to a color LCD display with moisture indicators, audible alerts, and intuitive operation, the device enables quick assessment of moisture levels. The MO55A provides precise reference values, particularly for water damage, building inspections, or the examination of floors, walls, ceilings, and substrates. Automatic calibration in pinless mode and the hold function further ensure convenient and reliable operation.
Product Features:
- Measurement Methods: Pin and pinless moisture measurement
- Display: Color LCD with multifunction displays
- Measurement Principle (Pin Mode): Electrical resistance
- Measurement principle (pinless mode): Electrical capacitance via integrated sensor
- Measurement range for wood (pin mode): 5.0% to 50.0%
- Measurement range for building materials (pin mode): 1.5% to 33.0%
- Measurement range, pinless mode: 0.0% to 99.9%
- Measurement resolution: 0.1%
- Measurement accuracy: ±(3.0% + 5 digits) at 22 °C to 25 °C
- Automatic calibration in pinless mode
- Moisture indication via droplet symbols and an audible signal with 3 intensity levels
- Display hold function to freeze the measured value
- Automatic shut-off after 3 minutes of inactivity
- Electrode length: 8 mm
- Electrode material: Stainless steel, integrated and replaceable
- Power supply: 3 × 1.5 V AAA batteries
- Current consumption: < 15 mA
- Operating conditions: 5 °C to 45 °C, < 80% RH
- Storage conditions: 0 °C to 50 °C, < 85% RH
- Maximum operating altitude: 2000 m
- Dimensions: 172 × 68 × 32.5 mm
- Weight: 151 g without batteries
- EMC compliance: CE, FCC Part 15B
- Shock resistance: Drop test from 1.2 m in accordance with EN 61010-1
- Vibration resistance: MIL-PRF-28800F Class 2
- Included in delivery: Protective cap, test probes, batteries
