Warranty Period: 36 months
When you purchase products from our website, we will extend the warranty automatically.
you may check details on the My Warranty page after the product is delivered.
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Note: To measure the current you need to clamp the meter around one of the wires and not the whole power cord. The power cord contains two wires carrying the current and ground wires. The current in two wires always flows in opposite directions, so the magnetic fields from two wires cancel each other, therefore the meter reads 0 A.
The NCV function can test the voltage without contact. When the Meter senses a weak AC signal, the green indicator light will be on and the buzzer will emit a slow, audible beep. When the Meter senses a strong AC signal, the red indicator light will be on and the buzzer will emit a brief beep.
AstroAI 4000 Counts TRMS Clamp Meter
Test AC/DC Voltage, AC/DC Current, Resistance, Capacitance etc.
The CM4KOR Clamp Meter can accurately measure AC/DC Voltage, AC/DC Current, Resistance, Capacitance etc.
Frequency and Duty Cycle Test
Turn the rotary dial to the “Hz/%” setting (Duty Cycle Test: Please press the FUNC button to duty cycle test.) The screen will display “ HZ/% ” indicating the measurement function.
Detects Live Wires
Live wire testing with the red test lead. This unique function tests the presence of live wires. When it detects a live wire, the clamp meter will reflect with the audio alarm.
Zero Function
This function helps decrease the data error influenced by the Earth’s magnetic field, and helps you to obtain a more accurate measurement.
NCV Detection
This Clamp Meter features non-contact voltage testing with a sound and light alarm. When the indicator light is on, it means there is voltage, please pay attention to your safety.
Continuity Test
Connect test leads to the circuit, the buzzer inside the Meter will beep if the resistance
Correct Measurement
Please measure in the correct way, otherwise the readings will not be accurate.
Backlit LCD and Flashlight
The Backlit LCD and Flashlight ensure clear measurements in a dimly lit area. The Backlight can be switched manually and shuts off automatically after 15 minutes.
Specifications
Digital Display: 3 ¾, 4000
Sampling Speed: 3 times per second
LCD Size: 35 x 25mm
Range Selection: Auto or Manual
Polarity Indication: “ - ” Automatically displayed
Overload Indication: “OL” Displayed
Low Battery Indication
Working Environment: 32°F~104°F (0°C~40°C); <80% RH
Storage Temperature: 14°F~122°F (-10°C~6°C); <70% RH
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)
Package Includes
1 x AstroAI 4000 Counts True RMS Digital Clamp Meter
1 x Test Leads (Pair)
2 x 1.5 V AAA batteries
1 x User Manual
1 x Storage Bag
Technical Details
Product Dimensions | 2.7 x 1.1 x 7.7 inches |
Item Weight | 14.46 ounces |
Model | CM4K0R |
Measurement Type | Multimeter |
Power Source Type | Battery Powered |
Batteries | 2 AAA batteries required. (included) |
Style | 4000 Counts AC/DC Current |
Special Features | NCV Detection, Detect Live Wires, Test Frequency and Duty Cycle, Backlit LCD and Flashlight, Sound and Light alarm, Zero Function |
Voltage | Maximum measurement 600.00 volts |
Warranty Info | 3 Year Warranty by AstroAI |
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---|---|---|---|---|---|---|
Range Selection | Auto | Manual and Auto | Auto | Auto | Auto | Manual and Auto |
AC/DC Voltage | Yes | Yes | Yes | Yes | Yes | Yes |
AC/DC Current | Yes | Only AC Current | Only AC Current | Only AC Current | Yes | Yes |
Resistance/Continuity | Yes | Yes | Yes | Yes | Yes | Yes |
Capacitance/Frequency | Yes | Yes | Only Capacitance | Only Capacitance | Yes | |
Temperature | Yes | Yes | ||||
NCV Detection | Yes | Yes | Yes | Yes | ||
Live Wire Test | Yes | Yes | Yes | Yes | ||
Maximum Display | 3999 | 5999 | 1999 | 1999 | 3999 | 9999 |
Diode | Yes | Yes | Yes | Yes | Yes | Yes |
Auto Power Off | Yes | Yes | Yes | Yes | Yes | Yes |
Warranty Period: 36 months
When you purchase products from our website, we will extend the warranty automatically.
you may check details on the My Warranty page after the product is delivered.
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