1. Working voltage: 2.6~3.3V2. Test voltage range: 0.1V~250V / 40~1kHz3. Working temperature: 0~40 degrees Celsius4. Working humidity: Relative humidity 20%~75%5. Material temperature: -10~50 degrees Celsius6. Raw material humidity: Relative humidity 20%~80%7. RCD current: more than 30mA8. RCD working voltage: 220+/-20V9. Battery: 2 AAA batteries (not included)10. Size: 64.5x64.5x58.2 (mm)11. Mainly used to detect the plug polarity and the safety of the leakage switch, which can quickly and accurately detect the plug wiring. At the same time, the plug voltage can be tested and displayed on the LED display of the LCD screen.12. Features: VA color display, leakage protection, zero line recognition, automatic shutdown, non-contact detectionSpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 12cm * 12cm * 10cm / 4.72inch * 4.72inch * 3.94inch Qty per Carton 40 Carton Weight 7.00kgs / 15.43lb Carton Size 52cm * 50cm * 25cm / 20.47inch * 19.69inch * 9.84inch Loading Container 20GP: 410 cartons * 40 pcs = 16400 pcs40HQ: 952 cartons * 40 pcs = 38080 pcs