Feature: 1. [PROFESSIONAL DESIGN] Support 400A true effective value, it can measure the effective value of all waveforms in real time. 2. [HIGH ACCURACY] Accurate design, it can accurately measure the non linear load circuit indicators. 3. [DIGITAL DISPLAY SCREEN] Adopting LCD screen, its display count is 2000 digits, allowing you to read clearly and easily. 4. [MULTI FUNCTION] It can be used to measure 600V AC and DC voltage, 400A AC current, to help you better grasp the situation of the circuit. 5. [CLAMP DESIGN] With a 23mm jaw design, its body is compact, easy to operate with one hand, and can be easily used in various situations. Specification: Item Type: Digital Clamp Meter Model: DT-330H Material: ABS Battery: 2x1.5V AAA Battery (Battery Not Included) Purpose: It is suitable for electrical parameter measurement. Clamp Opening Size: Approx. 23mm / 0.9in Diode Test: Test Current: 0.3mA Typical Open Circuit Voltage: 1.5V DC Typical Value 330H: Test Current: 1mA Typical Open Circuit Voltage: 2V DC Typical Value Short Circuit Buzzer Test: <120Ω Test Current＜1mA (330H:＜50Ω, Current＜1mA) Overload Prompt: OL Sampling Rate: Generally 2 Times Per Second Input Impedance: 7.8MΩ (VDC and VAC); 330H: 10MΩ (VDC and VAC) Display: 2000-Digit LCD Display AC Current Bandwidth: 50/60Hz (AAC) AC Voltage Bandwidth: 50/400Hz (VAC); 330H: 50/1kHz Operating Temperature: 0~40℃ (32~104℉) Storage Temperature: -10~50℃ (14~122℉) Function Measuring Range Accuracy Rate AC Current Frequency Response 50Hz~60Hz 2.000AAC ±(2.8%+10 Digits) 20.00AAC ±(2.5%+5 Digits) 200.0AAC ±(2.5%+8 Digits) 400AAC DC Voltage 200.0mVDC ±(0.5%+8 Digits) 2.000VDC 20.00VDC 200.0VDC 600VDC AC Voltage 2.000VAC ±(1.5%+5 Digits) 20.00VAC ±(1.5%+8 Digits) 200.0VAC 600VAC AC Voltage Bandwidth: 50Hz~60Hz (Full Wave) 50Hz~1kHz (Sine Wave) Resistance 200.0Ω ±(1.2%+8 Digits) 2.000KΩ 20.00KΩ 200.0KΩ 2.000MΩ ±(2.5%+8 Digits) 20.00MΩ . Package List: 1 x Clamp Meter (Battery Not Included)2 x Test Leads1 x Manual1 x Carrying Bag