1. Battery installation The battery back cover can be opened with a coin as shown in the figure below to replace the battery. Battery Installation The device uses three 1.5V AA batteries, make sure to install the positive and negative poles of the batteries correctly. The battery voltage of the device will be displayed every time it is turned on, and the battery status can also be viewed at Menu-Parameter-Power-Voltage. 2. Button introduction 3. Turn on the device by pressing the on/off button. After turning on the device, the device will first display the software version, battery voltage, and remaining memory. After 3 seconds, it will automatically jump to the measurement mode, and the device can run. . Please note: Every time the device is turned on, it will automatically enter the measurement mode before the last shutdown. If you need to change it, please go to the system menu to select the measurement mode you need. 4. Set basic parameters Before starting the measurement, you must adjust some important parameters according to your actual work needs and conditions, and the factory parameters (alarm threshold, background, etc.) also need to be confirmed.
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