Will this tachometer work with positive ground battery?

I tried several ways to ground it. It will not give a good reading. It jumps all over the place but the correct reading.

Will this work for single cylinder 4 stroke motor (mule 610)?

NOTICE Q is about a Tach, but the amswer is about pressure. Why is thereno relative answer? I need a Tach for my single cylinder Go Cart, but I can't purchase here due to the lack of relative information given.

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Blue Light Voltage

Product ID: 19450522

Details

Brand
ESUPPORT
Item Highlight
Light Display
Item Weight
1.58 ounces
Item dimensions L x W x H
2.05 x 2.05
Material
Nylon Rubber

⚡Reads up to 15V with 12V power

📏2"/52mm compact size

🔵Blue LED high visibility display

142897Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your ride with precision and style!

GLOW WITH CONFIDENCE - Striking blue LED display ensures clear voltage readings day or night, keeping you informed and in control.
EFFORTLESS INSTALLATION - Includes mounting clamps and clear instructions for a hassle-free setup that gets you on the road faster.
PRECISION IN EVERY INCH - Compact 2"/52mm diameter fits seamlessly into custom or standard gauge panels for a sleek dashboard upgrade.
UNIVERSAL COMPATIBILITY - Designed for 12V automotive, truck, and boat systems, making it the versatile choice for any ride.
STAY AHEAD OF POWER DROPS - Built-in warning light activates below 11.5V, alerting you instantly to prevent unexpected battery failures.

The ESUPPORT 2" (52mm) Digital Volt Voltage Gauge features a bright blue LED display for easy voltage monitoring in 12V automotive, truck, and boat systems. It offers a compact design with a high visibility warning light that activates below 11.5V to alert users of low voltage conditions. Easy to install with included mounting clamps, this professional-grade gauge reads up to 15V, ensuring reliable performance and peace of mind on every journey.

Specifications

ASIN	B00T2NTWUA
Best Sellers Rank	#38,430 in Automotive ( See Top 100 in Automotive ) #51 in Automotive Voltmeter Gauges
Brand Name	ESUPPORT
Customer Reviews	4.4 4.4 out of 5 stars (574)
Item Dimensions	2.05 x 2.05 inches
Item Highlight	Light Display 12V Universal for Auto Automotive Truck Boat
Item Weight	1.58 ounces
Manufacturer	ESUPPORT
Material Type	Nylon, Rubber
Model	CXC01713
Number of Items	1
Number of Packs	1
Part Number	CXC01713
UPC	711041558343

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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.

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TrustScore 4.5 | 7,300+ reviews

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