MMH800 Manual_Ra-LANG-cond__041116.qxp_Layout 1 4/11/16 2:16 PM Page 3
Which sensor should you use?
It depends on the application. The pad sensor is the only choice for measuring surface
moisture of materials like finished wood, paint or wallpaper that cannot be marred by
pinholes. If measurement accuracy is important, the pin sensor is the better option
because pins can detect moisture below the surface that the pad sensor cannot.
However, for hard materials like wood, the meter's readings mostly represent surface
moisture content. For softer materials like soil, paper or powders, readings are more
likely to reflect the average moisture level of the material between its surface and the
penetration depth of the pins.
KeY feaTURes
• Pin (intrusive measurement of moisture content) and pad
(non-intrusive measurement of surface moisture) sensors
• Separate 3-digit displays of moisture level and temperature + humidity
• Selectable wood or building materials measurement mode
• °F/°C switch
• Wide measurement range and high accuracy
• Audible and visual indications of high, medium and low moisture levels
• Holds moisture level readings for convenient viewing later
• Pin cover doubles as calibration checker
• Auto power off function
• Battery charge indicator
WHaT's In THe Case
The MMH800 comes in a custom hard carrying case along with a 9V battery, two pairs
of extra test pins (0.28 in./7mm and 0.4 in./10mm long), and this user's manual.
PRoDUCT oVeRVIeW
The figure on the next page shows all of the controls and indicators on the front of the
MMH800, as well as the locations of the sensor and battery compartment on its back.
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