AstroAI 4000 Counts Digital Multimeter, Model CM4K0R

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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.
Additional Tips: This clamp meter has passed the environmental pollution test degree 2 and overvoltage category III 600V safety standards. Combined with Amazon's excellent delivery, we provide lifetime technical support.

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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

The AstroAI True RMS 4000 Counts Digital CLAMP METER is designed to be safely and accurately used by professionals and weekend DIYer’ s. It is suitable for commercial and household electrical problems.

Advanced features have been provided including AC/DC Voltage, AC/DC Current, Frequency, Duty Cycle, Resistance, Capacitance Measurement and NCV Detection, Flashlight, Diode, Live Wire Test and Audible Continuity Testing.

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

	AstroAI 4000 Counts Digital Multimeter, Model CM4K0R	AstroAI 6000 Counts TRMS Digital Clamp Meter, Model DT201D	AstroAI 2000 Counts Multimeter, Multi Clamp Meter, Model CM2K0R	AstroAI 2000 Counts Digital Clamp Meter, Model DT202	AstroAI Digital Multimeter 4000 Counts, Model M4KOR	AstroAI 10000 Counts Digital Multimeter，TRMS，Model MUS10KRD
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

Auto-warranty

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.

User Manual

AstroAI 4000 Counts Digital Multimeter, Model CM4K0R User Manual

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