ANENG Intelligent Digital Backlit Clamp-On High-Precision Multimeter, Specification: ST181 Feature: 1. Small size, easy to carry, easy to use with one hand 2. The 36mm large jaw opening can be measured without touching or interrupting the circuit, Automatic range, intelligent and efficient operation, obtain scientific and accurate results 3. 400A AC current measurement: 40A~400A wide range measurement, suitable for various wires, convenient and accurate 4. NCV non-contact voltage detection: If you want to detect whether there is AC voltage or electromagnetic field in the space, you can put the front end of the clamp head of the meter close to the measured object, if there is, a buzzer will sound and the NCV light will flash 5. Data retention function: keep the measurement data, easy to view or observe the data 6. Backlight function: LCD screen with backlight, which can clearly display data 7. Low voltage reminder: When the low battery symbol appears, the battery needs to be replaced in time. Insufficient battery may affect the accuracy of the measurement results 8. Automatic shutdown: if there is no operation within 15 minutes, the meter will automatically shut down 9. Multi-function measurement: ACDC voltage, AC current, resistance, capacitance, frequency, temperature, NCV test, diode, continuity test Specification: 1. Product material: ABS 2. Wire: Brass+PVC 3. Power supply: 2xAAA batteries (not included) 4. Automatic shutdown: after 15 minutes 5. Display mode: LCD display 6. Maximum count: 4000 times 7. Chin opening: 36mm 8. DC voltage range: 400mV, 4V~600V 9. AC voltage range: 4V~600V 10. Alternating current range: 40A~400A 11. Frequency range: 10Hz-400kHz, 400kHz-4MHz 12. Resistance range: 400 ohms 13. Temperature range: 0~400 degrees Celsius 14. Item size: 184x64.5x32 mm 15. Item weight: 129 grams Packing list: - Clamp meter x 1 - Test lead x 1 - User Manual (English) x 1