General Tools and Instruments MMD7NP - Manuel (Page 4)

locate the source of a water leak above a ceiling by comparing readings at
various points on it. If the ceiling is level, the point that produces the highest
reading is below the source of the leak.
Any digital reading can be held by pushing the fourth and final front panel
button—the HOLD button. This button makes it possible to make a
measurement in a dark place and display it after bringing the meter into a
lighted area.
To extend battery life, the MMD7NP automatically powers off after two minutes
of inactivity. The instrument is powered by a “9V” battery included in the blister
pack.
KEY FEATURES
• Separate settings for drywall, masonry, softwood and hardwood
• 2 in. diagonal backlit LCD + 3-color LED bar graph
• Non-invasive technology with ¾ in. (20mm) maximum sensing depth
• ±4% accuracy on wood
• Auto calibrating
• Reading HOLD button
• 2-minute Auto Power Off trigger
• Separate out-of-range alarms for wood and building materials
• Low battery indication
• Powered by “9V” battery
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