Model Number: UL330/W Brand Name: Eoutil Key Specifications/Special Features: UL330 Mini Size Dorable Design Ultrasonic Distance MeasuresTechnical SpecificationsRecommended use : IndoorMeasurement range: 2' to 40' (0.6~12 meter)Accuracy: ±0.5% plus ±1 DigitResolutions: 1" (0.01M)Aperture angle: Approx. 5 ±degreesLaser Diode Type: Red laser diode 650nmLaser Class: Class IIIa(US version)
/Class II(Europe version)
Power supply: 6V DC
Operation temperature: 32℉ to 104℉(0℃ to 40℃)

BATTERY INSTALLATION
1. Open battery door on back of case.
2. Connect 4*1.5V LR44 batteries to operate to battery clip.
3. Insert battery into case and replace battery door.
When battery is low, the low battery icon will be continuously displayed on the LCD

How to use the ultrasonic distancemet
Press “Read/Power” button to start the tool.
Point to wall and get measured distance by press “Read/Power” button.
For dynamic read, press and hold “Read/Power” key to get measured distance displayed while the unit is moving.
Each measurement erases the previous one.
Measured distance is displayed on top of the LCD screen.
Unit automatically turns itself off after about 17 seconds of inactivity.

IMPORTANT NOTE:
Position and point the unit perpendicular to the target.The laser pointer will show where the tool is pointing and is only on while a reading is being taken.
The target must be a hard regular surface unencumbered by objects/obstacles in the measurement field.
For more accurate result, choose a target that is flat and large with hard surfaces.
Put a piece of cardboard in front of the target if the measured target is small, irregular or soft.
The ultrasonic distance meter cannot measure through glass, but will measure to glass.
For long distance measuring 40 Feet (12M),the relative humidity should be above 48％ and target size of at least 10 ft by 10 sq ft /3M BY 3M.