General Tools MMD900 Dual Pin/ Pinless Moisture Meter w/ Remote Probe

Contractors, woodworkers and homeowners will find this unit to be ideal for finding leaks and for measuring the moisture content of wood and other construction materials. The MMD 900 offers two measurement modes, % WME, and %REL, and displays results both on a jumbo LCD screen and in a 40-dot LED graph. In pinless mode, the unit measures moisture up to 2 in. beneath a surface using a sensor mounted on its back. Measures 0 to 99.9% WME.

• Two measurement modes: Pin (conductivity-based) and pinless (based on the fringing field effect)
• Two sets of test pins: on top of the meter and at the end of 46 in. remote cable
• Pin measurement accuracy of ±3%
• Pinless mode measurement depth of 2 in. below surface
• Displays %WME and relative readings simultaneously on two displays: 0 to 99.9 count jumbo LCD with 0.9 in. (23mm) digits, and 40-dot tri-color LED bar graph
• Manual or automatic calibration checking
• Data hold (display lock or “freeze”) function
• User-programmable beeper function, backlight function and auto power off time
• Low battery warning
• Spare pins storage compartment
• Includes two pairs of replacement test pin, remote pin-type probe and cable, 9V battery, custom molded plastic case, and manual

• Checking for moisture on or below the surface of carpets and sub-flooring
• Measuring the surface moisture content of wood, drywall or concrete before painting, wallpapering, sealing or treating
• Locating water leaks above ceilings, below floors or behind walls
• Selecting dry lumber

• Measurement Range: 0 to 99.9% WME(Wood Moisture Equivalent) or REL
• Measurement Accuracy (Pin Mode):3% of reading +5 digits
• Pin Length/Type:3/16 in. (4.76mm) stainless steel
• External Probe Cable Length: 46 in. (1.168m)
• Pinless Measuring Depth: 2 in. (50.8mm)
• LCD Digit Height: 0.9 in. (22.9mm)
• LCD Resolution: 0.1%
• LED Bar graph Composition/Colors:40 dots/green, red, yellow
• Operating Current: 70 mADC max
• Operating Temperature:32 to 122F (0 to 50C)
• Operating Relative Humidity: 80% max
• Dimensions:9 x 2.75 x 1.625 in. (229 x 70 x 41mm)
• Weight: 8 oz. (249g)
• Power Source: 1 9V battery (included)

• General Tools MMD900 Datasheet.pdf