Grand Index 4-in-1 Non-invasive Inductive Moisture Meter Sk318 for Drywall, Masonry, Softwood and Hardwood w/ Auto Calibration & Alarm

Product Description
This ideal tool measures moisture content without damaging the material that being tested. It emits and picks up electro-magnetic signals through the material to be tested. The reading displayed is an average value of the moisture content from the entire surface area and the maximum depth of penetration. Moisture which is closer to the surface has a greater effect on the average value than the moisture close to the maximum depth of penetration.
Internally, it checks and adjust the calibration of the unit, therefore manual calibration is no longer necessary. Readings maybe inaccurate when the sensor is place on wood with the thickness less than the maximum depth. Maximum depth of the sensor reading is 3/4 inch (20mm). LED indicates the moisture content simultaneously when the reading is shown on screen.

Features:
Detect Moisture of 4 different materials (drywall, masonry, softwood, hardwod)
Moisture display on LCD and LED bars
Auto calibration
Data hold function : Lock readings
Green backlight
Measure moisture without damaging the surface
Low battery indicator
Auto power off

Specifications:
Type : Non-Invasive Inductive Moisture Meter
Measurement Range : 0%~53% ( Softwood ) ; 0%~35% ( Hardwood )
Measurement Precision : ±4% (Softwood, Hardwood)
Maximum Sense Depth : 3/4 inch (20mm)
Power source : 1 x 9V Battery (not included)
Auto power Off : 2 minutes inactive
LED Moisture Content Indicator
Working Temperature : 0 ~ 40°C
Storage Temperature : -10 ~ 50°C
Storage humidity : 5% ~ 95% RH
Dimension : 170 x 75 x 30mm
Weight : About 150g
Moisture readings of drywall and masonry are relative values