CP-3001 Digital Ultrasonic Rangefinder Spirit Level Distance Meter Ruler, 501 Original

CP-3001 60ft Digital Laser Ultrasonic Rangefinder Portable Spirit Level Distance Meter with Ruler Measuring Instrument ToolsSpecification:Power supply: 1 X 12V (23A)Measurement data unit: Feet or metersAccuracy: 0.5% 1 bit (2-60 feet)Working frequency: 40KHzWorking temperature: 32 ℉ to 109.4 ℉ (℃ to 43 ℃)Measuring range: 2 to 60 feet (0.55 to 18.288 meters)The above are most product specifications; individual products may vary.Install the battery: Your rangefinder requires a 12V (23A) battery (not supplied) for power supply.Please follow the steps below to install the battery:1. Slide the battery compartment cover in the direction of the arrow to open it.2. Correctly insert the battery into the battery compartment according to the positive and negative (+ / -) directions indicated in the compartment.3. Replace the lid.4. When the low battery warning icon appears or the meter stops working normally, replace the battery.Note: If the rangefinder will not be used for one month or more, please remove the battery. The battery may leak chemical substances that damage the internal electronic components.Adapt the rangefinder to the surrounding environment before use:Your rangefinder is sensitive to changes in surrounding temperature and humidity.Before you use it, please wait about 15-30 minutes for it to stabilize to the current room temperature.Formal operation:Turn on the switch of rangefinder;Press the \\\"READ\\\" key to start the rangefinder.If no key is pressed within 30 seconds, the rangefinder will automatically shut down.Take measurements:1. After powering on, press the \\\"READ\\\" key again, and the distance between the rangefinder and the measured point will be displayed on the screen.2. Place the bottom of the rangefinder flat on the wall, about the middle of the floor to the ceiling.Make sure that there are no obstructions between the rangefinder and the measured point. And make sure that your head or hands are not in front of the rangefinder.Precautions:The measurement result will continue to be displayed for about 30 seconds (or longer if you press another key within these 30 seconds).If the distance you try to measure is less than 2 feet (0.6 meters) or more than 60 feet (18 meters), an \\\"ERROR\\\" prompt will appear on the screen.Tip: Certain types of curtains and blinds may absorb sound waves, causing inaccurate measurement results.If you are measuring a room with curtains, please open the curtains and directly measure the distance from the rangefinder to the window. Also, please make sure that the windows are closed.If there are obstructions between the rangefinder and the measured point, the measurement results you get may be wrong, because the measurement data is based on the reflection of sound waves from these obstructions, (such as chairs, tables, and other surfaces). Rough objects) rather than based on sound waves reflected from the actual measured point. If you are not sure whether the measurement result is correct, move the rangefinder a little bit, and then measure again.If the surface of the measured point is not flat, or if you are measuring a narrow corridor, you may get a false reading. If this happens, make sure that the surface of the point to be measured is flat or go to the middle of the corridor to measure.If the measured distance exceeds 60 feet (18 meters), you can choose to stand at the midpoint of the distance and test both ends separately, and then add the two test results.Metric system and English system: The initial default unit is metric system, press \\\"Ft/m\\\" key to switch between metric system and English system.Caveat:The rangefinder emits visible laser light with a wavelength of 650nm.Do not look directly at the laser beam, and do not point the laser beam at others\\' eyes.The output of secondary laser products is less than 1 milliwatt.Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3mm measuring deviation due to manual measurement.