product description:
Specification Measuring range :2ft to 52ft(0.6m to 16m)
Measuring accuracy :+/- 1 mm
Button tone
FEET/METER selection
Memory function
Low battery indication
Automatic switch-OFF function
Maximum current: Power running up to about 19 mA (Ultrasonic)
Laser wavelength:635-660m, 1m W
The ambient temperature measuring range：14℉〜104℉(-10℃〜40℃)
Unit Size:3*5.9*1.3 inch
Power supply: 1 * 9V battery(included)
Note: If you insert the battery,and the device can not work , please don t worry and follow up. ~Check if the battery is run down , if yes , you should change a new battery.
~If you changed a new battery and it still didn t work , it maybe the product has not been completely discharged .Please install the battery in reverse direction for 3 seconds , and repeat this twice ,then correct the installation .
In order to avoid measuring errors , please note the follow information ~ The reference area must be parallel to the target area .
~ The distance to be measured must be between 2 ft - 52 ft (0.6 m - 16 m) long.
~ The target area must have a smooth surface, so that the ultrasound can be well reflected.
~ Transparent surfaces, such as glass, generally reflect the ultrasound.
~ If a definitive measurement is not possible, the display shows the "Err" information. The measurement must then be repeated.
Warm Prompt 1.The device contains a Class 2 laser. Never point the laser beam at people or animals.Never look directly into the beam. Even a weak laser beam nor looking briefly into the beam can cause eye damage.
2.Never direct the laser beam onto objects that can reflect light.
3.Keep out of reach of children. Cleaning and user maintenance shall not be made by children without supervision.
4.Do not expose the device to moisture! This may damage it.
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