Dewalt Laser Distance Meter DWHT77100 (0.2 to 30 m Range, Laser Class 2, Measurement Tolerance: +/- 3 mm / 10 m, Length, Areas, Volume & Pythagoras Measurements, Easy Operation)

Product Information

Insert two AAA batteries, making sure to position the ‑ and + ends of each battery as noted inside the battery compartment (Figure E ). If you need to measure the height of a tall object (e.g., a tall building), you can calculate the height based on the distances from the same point to 2 or 3 points on the object. The tool will use the Pythagorean Theorem (A2+B2=C2) to calculate the height. Measure a distance with two measurements Once the current measurement is taken (the device is not in Continuous Measure mode), you can change the unit of measure from decimal ft (6.21 ft) to fractional ft (6'02"9/16), fractional ft to meters (1.894 m), meters to inches (74 9/16 in), or inches to decimal ft.

Switch the device on/off several times. If error still occurs, return device to Service Center or Distributor You can use the distance to two points on a tall object (Indirect Height) to determine its height (Figure I1).

Special event, club or membership offers, third party promotions or prices not available to the general public

Position the tool at one end of the target and point the laser dot across the length. (Figure H ) shows where to position the tool if you are measuring from the top of the tool.)Position the tool at one end of the target and point the laser dot across the length. (Figure G shows where to position the tool if measuring from the top of the tool.)

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Battery Safety Carefully read the Safety Instructions and Product Manual before using this product. The person responsible for the product must ensure that all users understand and adhere to these instructions. Press the gear button (Figure A ) three times to show the indirect measurement height on the display window (Figure E ). The DWHT77100 tools emit a visible laser beam, as shown in Figure A . The laser beam emitted is Laser Class 2 per IEC 60825‑1. DO NOT mix old and new batteries. Replace all of them at the same time with new batteries of the same brand and type.

Terms & Conditions

To change the measurement unit, hold the gear button (Figure A ) for three seconds to enter the units menu. Press the on button to confirm your reference location. Once confirmed, the current unit of measurement will be displayed, press the gear to change units and the on button to confirm. Press the gear button (Figure A ) once to show the area icon (Figure B ) on the display window (Figure A ).