1、Low Voltage Indicator Light: During the testing process, please observe whether there is a low voltage indicator light on the LCD display screen. If there is, it indicates that the battery voltage is lower than the normal value, which will affect the instrument function and measurement accuracy. Sometimes, this situation can also cause the instrument to fail to start. At this point, the battery should be replaced in a timely manner 2、Main Usage: The 3 phase rotation tester can determine whether there is a fault in the circuit and quickly locate the disconnected position, thereby helping you quickly and easily repair the circuit. 3、Detecting 3 Phase Sequence: The 3 phase rotation indicator is designed specifically for detecting the 3 phase sequence during motor installation and maintenance, which is fast, simple, and accurate. 4、Protection Level: The 3 phase rotation meter has CAT III 600V low voltage automatic reminder and automatic shutdown without operation. 5、LCD Display: Three digit LCD display, sampling rate of 3 times per second. 3 phase sequence rotation tester is a great helper for motor detection. 6、Good Features: The 3 phase rotation tester is small in size, light in weight, beautiful in appearance, with a safe and durable material shell, convenient and practical. Item Type: 3 Phase Rotation Tester Product Material: ABS Weight: Approx. 287g / 10.1oz Temperature: -10℃ ~ +60℃ Humidity: 0-85% Rh Battery Type: 3 AAA (Shipped Without Battery) LCD Display Size: Approx. 12.1x7.3cm / 4.8x2.9in 1 x Measuring Instrument 1 x Storage Bag 1 x English Manual 3 x Sleeve