AstroAI Digital Clamp Meter Multimeter 4000 Counts Auto-ranging Amp Tester Measuring AC/DC Voltage & Current, Resistance, Capacitance, Frequency, Continuity, Live Wire Test, NCV Detection, Blue

Price: $45.99 - $35.98
(as of Oct 24, 2026 07:59:37 UTC – Details)

Product description

AC/DC Voltage & Current

Accurately measure AC/DC voltage & current, resistance, capacitance, etc.

Frequency & Duty Cycle

Turn the rotary dial to the “Hz/%” setting and press the FUNC button to perform a duty cycle test.

Detects Live Wires

The clamp meter will emit an audible alarm when it detects a live wire.

Zero Function

Decreases data errors caused by the Earth’s magnetic field, ensuring more accurate measurements.

NCV Detection

Use the clamps to perform non-contact voltage tests; an audible and visual alarm indicates voltage.

Continuity

Connect test leads to a circuit; the buzzer inside the meter will beep if the resistance is <50Ω.

Correct Test Method

Ensure the meter is always on the appropriate setting for the most accurate results.

Backlit LCD & Flashligh

Manually activate the backlit LCD and flashlight to ensure clear measurements in low light.

Specifications

Digital Display 3 ¾, 4000 Sampling Speed 3 times per second LCD Size 35 x 25mm Range Selection Auto or Manual Power 1.5V AAA Batteries x 2 Included Dimensions 195x68x29mm Weight Approx. 205g Safety/Compliances CAT.III 600V; Pollution Level: 2; Altitude <2000m DC Voltage 400mV/4V/40V/400V/600V ±(0.5%+5) AC Voltage 4V/40V/400V/600V ±(1.0%+5) DC Current 40A/400A ±(2.5%+5) AC Current 40A/400A 50~60Hz : ±(2.5 +5), Other : ±(3.0% +10) Resistance 400Ω/4KΩ/40KΩ/400KΩ/4MΩ/40MΩ ±(1.0%+5) Capacitance 4nF/40nF/400nF/4μF/40μF/400μF/4mF ±(4.0%+5) Frequency 40Hz/400Hz/4kHz/40kHz/400kHz/4MHz ±(1.0%+3) Duty Cycle 1~99% ±(3.0%+3)

PLEASE ATTENTION

Incorrect Operation May Result in No Reading or Inaccurate Readings:

Select the correct mode: Use the FUNC button to choose AC or DC voltage. Confirm the selected mode on the LCD before measuring.Insert the test leads completely: Make sure the red and black test leads are fully inserted into the correct terminals before testing.Stay within the rated range: Do not measure voltages exceeding 600 V DC or 600 V AC CAT III.Normal fluctuations: Readings may vary with the power source. A variation within ±10 V is normal and does not indicate a defective meter.

Versatile Digital Clamp Meter: Accurately measures AC/DC Current, AC/DC Voltage, Capacitance, Frequency, Duty Cycle, Resistance, Diode, Continuity and Live Wire Tests. This clamp meter is a really useful tool for solving industrial and household electrical issues.
Non-contact Voltage Testing: This Clamp Meter features non-contact voltage testing with sound and light alarms. When the Meter senses a weak AC signal, the green indicator light will come on and the buzzer will emit a slow, audible beep. when the Meter senses a strong AC signal, the red indicator light will come on and the buzzer will emit a brief beep.
Multifunctional & Easy to read: Support Data Hold, Max/Min, Auto power off after 15 minutes inactivity, low battery indicator and continuity buzzer. The LCD Backlit Screen and Flashlight make it easy to use in a dark working area. ZERO function decreases the data error influenced by the Earth’s magnetic field, and helps you to obtain a more accurate measurement.
Large Jaw Opening: The jaw opening measures current in a conductor without touching or interrupting the circuit. Its slim and compact size makes it easy to operate in narrow spaces. This clamp meter has passed the environmental pollution test degree 2 and overvoltage category III 600V safety standards.
Additional Tips: To measure the current you need to clamp the meter around one of the wires and not the whole power cord. Ensure the conductor to betested is in the center of the clamp head. The clamp Jaw is only used to measure current. Do not measure voltage by clamping the conductor being measured.
Professional Technical Support Team – If you have any questions about the product, feel free to contact us! Our California-based support team will respond within 24 hours.
Customers find the clamp meter to be a quality tool that offers good value for money, with many noting it has many useful features and is perfect for troubleshooting power electronics and equipment. They appreciate its compact size, particularly for tight spaces, and its well-built construction, with one customer comparing it to military specifications. The accuracy receives mixed feedback, with some praising the clamp while others report non-functional features. Durability is also mixed, with some saying it should hold up with careful use while others report it dying after minimal use.