What gauge of wire to use to mount this across a 12 volt marine battery

Remember voltage is read ACROSS the battery and not in series-with. So across a 12v battery, mine draws 5 ma (0.005 A). Therefore, whatever awg automotive wire you have is FINE!, as it draws next to zero current. (thousandths of an amp). For automotive use, for an auto that’s driven regularly, one [might] choose to wire it always ON (fuse-box always on), so that you can see the battery voltage WHILE cranking., as if your voltage significantly drops during cranking, you know your battery is potentially BAD.

What is the length of the threaded section? Can it be mounted to a 1/2” thick wall?

yes, there about a 1/2 of an inch long, you can always us different screw types if they don't work for your application.

Mine flashes 8.8.8. when hooked up. What does this mean? Right now 0 stars.

i had a 12V reader...and it was upside down. i would not buy anything else from this manufacture

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Linkstyle 12V Digital Volt Meter, Waterproof Battery Voltage Gauge

Linkstyle 12V Digital Volt Meter, Waterproof Battery Voltage Gauge

Product ID: 101408030

Details

Brand
Linkstyle
Color
Light Red
Item Weight
17.87 g
Power Source
Corded
Style
Electronic

⚡Measures 8–26V DC voltage range

💧IP65 water-resistant for outdoor durability

🔴Bright red LED display for instant readability

€ 16.20

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Never get caught powerless—monitor your battery like a pro!

ALL WEATHER DURABILITY - IP65-rated waterproof housing ensures reliable performance rain or shine, perfect for outdoor and rugged use.
INSTANT VISUAL CLARITY - Large, bright red LED digits guarantee quick voltage checks anytime, eliminating guesswork even in bright daylight or darkness.
EFFORTLESS INSTALLATION - Dual mounting options with a sleek 29mm panel cutout or included faceplate for a seamless, professional dashboard fit.
UNIVERSAL COMPATIBILITY - Designed for 12V and 24V systems—ideal for cars, motorcycles, RVs, boats, and trucks, making it the versatile choice for pros on the go.
PRECISION VOLTAGE MONITORING - Stay ahead of battery failures with real-time, accurate voltage readings from 8 to 26 volts DC.

The Linkstyle 12V Digital Volt Meter is a compact, waterproof battery voltage gauge featuring a bright red LED display for fast, accurate readings between 8 and 26 volts DC. Designed for easy installation with two mounting options, it offers real-time monitoring of battery and charging system voltage. Its IP65-rated housing ensures durability in outdoor environments, making it perfect for vehicles, boats, and RVs. Compatible with both 12V and 24V systems, this voltmeter eliminates the need for a multimeter, providing professionals and enthusiasts with reliable, instant battery health insights.

Specifications

ASIN	B07MC85HPB
Best Sellers Rank	#136,445 in Automotive ( See Top 100 in Automotive ) #55 in Automotive Voltmeter Gauges
Brand Name	Linkstyle
Color	Light Red
Compatible Devices	DC 12V and 24V systems (Cars, Motorcycles, RVs, Boats, Trucks, etc.)
Customer Reviews	4.5 4.5 out of 5 stars (873)
Included Components	1 panel, 2 screws, 2 terminals
Item Weight	17.87 g
Manufacturer	Linkstyle
Maximum Operating Voltage	24 volts_of_direct_current
Measurement Type	Voltmeter
Minimum Operating Voltage	12 volts_of_direct_current
Model	A06460R
Number of Items	1
Part Number	A06460R-L002300263FBA
Power Source	Corded Electric
Specification Met	UL
Style Name	Electronic
UPC	738944208731

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€ 16.20

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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