DZH-20 Electronic Altimeter

Product Overview

This instrument is a digital height-measuring device, suitable for measuring tree height in forestry surveys and also applicable to applications requiring distance, angle, and height measurement, such as power line inspection, tower erection, freight handling, telecommunications, and railway maintenance. It features distance-and-angle (AD) measurement, enabling simultaneous measurement of distance and vertical angle. It also offers two-point height measurement (2H), which is ideal when at least one point on the target height—either the lowest or highest—is equipped with a good laser-reflective surface; points “1” and “2” correspond to the actual target height. For three-point height measurement (3H), this function is used when neither the lowest nor the highest point of the target height has a favorable laser-reflective surface; in such cases, a suitable reflective surface along the vertical axis of the target height is selected as measurement point “1,” while points “2” and “3” represent the actual target height. The instrument employs a collimator sight for aiming and is powered by a rechargeable lithium battery, providing approximately 8 hours of continuous operation on a full charge. If no operations are performed within the set time interval (up to 999 seconds), the device will automatically shut down. It features a high-contrast OLED display for clear and crisp readings. The instrument can be operated either handheld or mounted on a tripod. When used in the tripod-mounted configuration, it must be paired with a tripod. ⑼ Displays battery level and charging status, with automatic shutdown upon low battery.

Technical Indicators

Project	Parameters
Range of measurement	0.1M ~ 20M
Ranging accuracy	±5mm
Angle measurement range	±60°
Angle measurement accuracy	0.5°
Height measurement range	0.5M ~ 35M *
High-precision measurement	0.2M
Laser power	5mW
Operating temperature	-20℃ ~+40℃
battery	3.7V/1500mAh lithium-ion battery
Storage temperature	-40℃ ~+60℃
Instrument dimensions	180mm × 170mm × 50mm
Instrument weight	550g