One more question - the diagram shows wiring direct from aux battery. Wouldn't this meter stay on all the time when not in use?

This unit uses the top, main Positive to power the unit. No power is applied on the auxiliary positive. So run a wire direct to the aux source, and use the ignition hot to control a relay connecting the main battery with the volt meter main positive. I grounded into my switch panel negative buss. Simple and effective.

i am going to purchase an ausdin rocker switch panel with single voltmeter. i want to install this dual voltmeter in its place. is this possible?

I am not familiar with your ausdin panel so I do not know.

I have a blue seas batt switch installed to switch between main/aux batt, can i install this also for volts or will it interfer with the switch?

No, it will not interfer. It is two (2) sepereate circuits that measure the voltage of each battery. When the isolator has them connected (caharging) or if you have them connected in paralell they read the same.

Does this gauge stays illuminated all the time. Is there a way to shut off the light.

Yes it would stay on. The main you could put it onto any "key on" circuit on the fuse box. The AUX would need a switch.

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MICTUNING LED Digital Double Voltmeter, Round Panel Voltage Monitor Blue for Car Pickup RV Truck Dual Battery Pack

MICTUNING LED Digital Double Voltmeter, Round Panel Voltage Monitor Blue for Car Pickup RV Truck Dual Battery Pack

Product ID: 45669481

Details

Brand
MICTUNING
Color
Blue
Item Weight
18.14 g
Power Source
Battery
Style
Protection

💡Bright 3-digit blue LED display

🔋Dual battery real-time monitoring

🛡️Over-current & short circuit protection

₩41074

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Description

🔋 Power up your ride with precision and protection!

SAFETY FIRST ALWAYS - Advanced over-voltage, over-current, and short circuit protection safeguards your entire electrical system.
STAY POWERED STAY AHEAD - Monitor two vehicle batteries simultaneously to avoid unexpected dead starts.
PLUG PLAY PANEL PERFECTION - Easy flush mount with twist & lock fastener fits seamlessly into any dashboard with a 1.15" drill hole.
BUILT TOUGH FOR THE LONG HAUL - Flame-retardant ABS shell with wear-resistant matte finish ensures durability under any condition.
CRYSTAL CLEAR VOLTAGE INSIGHT - High-visibility blue LED display delivers precise, real-time voltage readings at a glance.

The MICTUNING LED Digital Double Voltmeter features a dual 3-digit blue LED display for real-time monitoring of two vehicle batteries, supporting DC 10-60V input. Designed with robust flame-retardant ABS plastic and advanced circuit protections, it ensures long-lasting durability and safety. Its compact 1.15" round panel mount with twist & lock fastener allows easy installation on most vehicles including cars, trucks, RVs, and marine boats, helping professionals stay ahead of battery issues and maintain optimal vehicle performance.

Specifications

ASIN	B0721PQCKD
Best Sellers Rank	#134,524 in Automotive ( See Top 100 in Automotive ) #54 in Automotive Voltmeter Gauges
Brand	MICTUNING
Brand Name	MICTUNING
Color	Blue
Customer Reviews	4.6 out of 5 stars 1,178 Reviews
Item Dimensions	1.9 x 1.9 x 0.9 inches
Item Weight	0.04 Pounds
Item dimensions L x W x H	1.9 x 1.9 x 0.9 inches
Manufacturer	MICTUNING
Measurement Type	Voltmeter
Minimum Operating Voltage	12 Volts (DC)
Model	B0721PQCKD
Part Number	MIC-DV-078R
Power Source	Battery Powered
Specification Met	CE, UL
Style	Protection,Voltage
Style Name	Protection,Voltage
Upper Temperature Rating	85 Degrees Celsius
Warranty Description	1 Yr Warranty

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₩41074

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

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