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General Tools Pin/Pinless Moisture Meter Model MMD900

Item #153774 General Tools
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Product Information:

An excellent option for the woodworker who works with a wide range of species, the MMD900 is a dual type moisture meter with both pin-type (%WME) and pinless (REL) measurement capabilities. The pinless measuring is up to 2" deep via a sensor on the back of the meter. The unit has a Jumbo LCD and 40-dot LED bar graph dual display.

Features & Benefits:

Two measurement modes: Pin (%WME) and pinless (REL)

Pinless measuring up to 2" deep via sensor on back of meter

Dual displays: Jumbo LCD and 40-dot LED bar graph

Jack for included remote pin-type probe

Protective cover doubles as calibration checker

Spare pins compartment

Replaceable stainless steel pins

Auto zero calibration

Data hold function

User can turn beep sound, backlight and auto power off function on or off


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" (4.76mm) stainless steel

External probe cable length: 46" (1.168m)

Pinless measuring depth: 2" (50.8mm)

LCD digit height: 0.9" (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 122°F (0° to 50°C)

Operating relative humidity: 80% max.

Dimensions: 9 x 2.75 x 1.625" (229 x 70 x 41mm)

Weight: 8 oz. (249g)

Power source: 1 9V battery (included)


Remote probe


Hard carrying case

Two sets of extra pins

User’s manual
California Residents: Click here for Proposition 65 information.