Can this be installed at a breaker box on a 200amp main breaker?

Yes, sort of. You will need 2 meters with their respective current transformers (those black donuts). One donut for each of the main power wires coming from the meter. Since these donuts aren’t split, you will need to disconnect the cables while still live, unless you remove the power meter. Total power used is the sum of the meters. Basically, you will need an electrician. Or you could by the MTP 3100 or equivalent. It comes with 2 current transformers that are split, so that you open them, slide on the cable, and then close them around the cables. No cutting or disconnecting power. The current transformers are connected to a wireless transmitter that transmits to the base station which sums up the power consumed/cost per hour based on your kWh rate and weekly consumption graph from the 120V and 240V loads instantaneously. There is also a cable and software to connect to your PC.

Power source? Does this run off the power of the circuit being tested or does it need a separate power source? Is it "self powered"?

It probably can but if you look at the images posted by the seller, it has a wiring diagram that says "Use isolated power source" for the meter's function. Probably because the meter measures 0-90VDC but is only able to handle a 0-30VDC power source. The last image has a very clear wiring diagram that's easy to red and understand from there on out though. Good luck.

I need this meter to measure ac volts and dc volts thanks

No - it only does AC volts and amps. You likely need 2 individual meters.

The paperwork doesn't show the cutout size. Does anyone know how big the hole needs to be?

Dear customer, Cutout size is 68mmx37.5mm Best regards, DROK

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

DROK AC Voltage Amp Display, Digital Voltmeter Ammeter Multimeter Panel 500V 200A Voltage Current Tester Meter, LED Display Volt Amperage Reader Gauge with Current Transformer CT

DROK AC Voltage Amp Display, Digital Voltmeter Ammeter Multimeter Panel 500V 200A Voltage Current Tester Meter, LED Display Volt Amperage Reader Gauge with Current Transformer CT

Product ID: 586851062

Details

Brand
DROK
Colour
Black green
Item weight
0.05 Kilograms
Power source
Self-Powered
Style
Digital

⚡AC 130-500V voltage range

📊0.39'' dual-color LED display

🔋0-200A current measurement

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

₪155

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Israel.

Secure transaction

Description

⚡ Power up your projects with precision and style!

PRECISION CALIBRATION - Built-in trimmer potentiometer ensures your readings stay accurate, backed by a robust safety-enhanced design.
DUAL COLOR LED DISPLAY - Instantly track voltage (red) and current (green) on one sleek screen for effortless monitoring.
WIDE MEASUREMENT RANGE - Handles AC voltages from 130 to 500V and currents up to 200A — perfect for heavy-duty and precision tasks.
SELF POWERED SIMPLICITY - No extra power source needed — it draws power directly from the circuit, streamlining your setup.
EXTERNAL CURRENT TRANSFORMER - Flexible installation with a 24mm CT hole, letting you place the sensor exactly where you need it.

The DROK AC Voltage Amp Display is a professional-grade digital voltmeter and ammeter panel designed for AC voltage ranges of 130-500V and current up to 200A. Featuring a vibrant 0.39-inch dual-color LED display, it simultaneously shows voltage and current readings for quick, clear monitoring. Equipped with an external current transformer for flexible installation and a built-in trimmer potentiometer for easy calibration, this self-powered meter offers reliable, accurate measurements with enhanced safety features, making it ideal for electrical testing, generator load monitoring, and advanced DIY projects.

Specifications

ASIN	B01M8LCWNW
Best Sellers Rank	#70,807 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Ampere Meters
Brand Name	DROK
Color	Black,green
Customer Reviews	4.4 4.4 out of 5 stars (567)
Included Components	Current Transformer
Item Dimensions	7 x 4 x 3 centimeters
Item Weight	0.05 Kilograms
Manufacturer	DROK
Maximum Operating Voltage	500 Volts
Measurement Type	Ammeter, Multimeter, Voltmeter
Minimum Operating Voltage	130 Volts (AC)
Model	200069
Part Number	200069
Power Source	Self-Powered
Specification Met	Nist Traceable
Style Name	Digital
Upper Temperature Rating	50 Degrees Celsius

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

₪155

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Israel.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews