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

View the Volume measurement at the bottom of the display window (Figure C ). Measuring the Height of a Tall Object If INFO appears on the display window with a Code number, perform the corresponding Corrective Action. Code At the bottom of the display window (Figure A ), view the current measurement (Figure C ), which will keep changing as you move 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.)

NOTE: Ensure the batteries are inserted in the correct manner, with the correct polarity. Setup (Load Batteries) Press the gear button (Figure A ) three times to show pythagoras (Figure B ) on the display window. 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. 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

Specification

Position the tool at one end of the target and point the laser dot across the width. (Figure G shows where to position the tool if you are measuring from the top of the tool.) From the same point, aim the laser straight ahead toward the lowest point of the building or object (Figure I3).

Position the tool at one end of the target and point the laser dot across the width. (Figure H ) shows where to position the tool if you are measuring from the top of the tool.) Insert two AAA batteries, making sure to position the ‑ and + ends of each battery as noted inside the battery compartment (Figure E ). Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Battery Safety

Specifications

DO NOT mix old and new batteries. Replace all of them at the same time with new batteries of the same brand and type. Press the gear button (Figure A ) three times to show the indirect measurement height on the display window (Figure E ). Switch the device on/off several times. If error still occurs, return device to Service Center or Distributor 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.) 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.