If I use 4 shunts in parallel, would device show 1/4 of actual current flow ? I need to measure up to 400 A draw.

Yes Considering the shunts as resistors, they obey the 1/R law. If each shunt of 1 ohm then 1/R= 1/1+1/1+1/1+1/1 1/R=4 R=1/4 then I =V across shunts/(1/4) This should hold true for the real world. Remember Voltage = (I)(R)

What would happen with an occasional 200a draw? Would it just not measure it correctly or would it be permanently broken?

Whereas I have not personally exceeded the maximum reading capability of this particular instrument, I have done so with many, many other ammeters, digital and analog with no consequence as long as the amount and time of overload is reasonable. The actual current being utilized by the meter's internal circuitry is in the micro amp range with little chance of heat damage. I'd assume that an overload indication such as a flashing display or , "err", "hhh" or "ovr" would be displayed.

Does this meter give a constant amp readout, and if I am using a 48 v system does the meter need a separate power supply?

The meter does displayed a constant current reading. The supply voltage you are providing to your device will also run the meter no need for a separate power supply.

When used to measure the voltage and amperes fed to the battery as opposed to battery output can/should you leave out the shut? 1 output side also.

Dear customer, If you are going to monitor battery, please connect it to the "Load" position. Meter have to work with shunt. Best regards, DROK

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DROK DC Power Meter, 8-100V 100A Volt Amp Watt Meter, LCD Display Multimeter Voltage Current Energy RV Battery Monitor Voltmeter Ammeter Wattmeter with 100A Battery Shunt

DROK DC Power Meter, 8-100V 100A Volt Amp Watt Meter, LCD Display Multimeter Voltage Current Energy RV Battery Monitor Voltmeter Ammeter Wattmeter with 100A Battery Shunt

Product ID: 94255191

Details

Brand
DROK
Color
Blue
Item dimensions L x W x H
3.53 x 1.95 x
Power Source
Battery
Style
100A

⚡8-100V DC voltage range

📊0-10kW power monitoring

🔋0-100A current measurement

$65.08

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your precision — never miss a watt or a volt!

CUSTOMIZABLE ALERTS - Set over-voltage and power threshold alarms with flashing backlight to catch your attention instantly.
SMART ENERGY STORAGE - Automatically saves all data on power-off, so you never lose your critical metrics.
USER FRIENDLY DISPLAY - Switchable backlight ensures clear visibility in any lighting condition, day or night.
PRECISION POWER TRACKING - Monitor voltage, current, and power simultaneously on a crisp large LCD screen.
ROBUST BATTERY MONITORING - Track battery levels up to 9999 kWh with a reliable 100A battery shunt for RVs and more.

The DROK DC Power Meter is a versatile and reliable multimeter designed for professional-grade voltage (8-100V), current (0-100A), and power (up to 10kW) monitoring. Featuring a large LCD display with switchable backlight, it offers real-time simultaneous readings and customizable over-voltage alarms. Its power-off data storage ensures no loss of critical energy metrics, making it ideal for RV battery monitoring and other high-demand DC applications.

Specifications

ASIN	B07KPXVNY5
Best Sellers Rank	#148,730 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #208 in Multi Testers
Brand Name	DROK
Color	Blue
Customer Reviews	4.4 4.4 out of 5 stars (580)
Included Components	no
Item Dimensions	3.53 x 1.95 x 0.96 inches
Manufacturer	DROK
Measurement Type	Ammeter, Multimeter, Voltmeter
Minimum Operating Voltage	8
Model	200141
Number of Items	1
Number of Packs	1
Part Number	200141
Power Source	Battery Powered
Style Name	100A
Unit Count	1 Count

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