12V Car 2 in 1 LCD Gauge Voltmeter and Water Temperature Meter | 1/8 NPT Temp Sensor Water Temp Gauge for Auto Truck

Keep a close watch on your engine's vital signs with this 12V Car 2 in 1 LCD Gauge. It combines a voltmeter and a water temperature meter into one easy-to-read digital display, helping you monitor your vehicle's electrical system and coolant temperature at a glance.

This gauge is designed for universal fit in 12V cars and trucks. It comes with a 1/8 NPT temperature sensor that screws directly into your engine's cooling system. The bright LCD screen shows both readings clearly, so you can spot potential problems before they turn into costly repairs.

The dual-function design saves dashboard space and simplifies installation. You get two critical measurements from a single unit. The digital display is precise and stable, with low power consumption that won't drain your battery. A sunshield improves visibility in bright conditions, and the unit is built to resist vibration and bumps from rough roads.

An integrated alarm feature triggers a flashing display when the water temperature enters a critical range. This gives you an immediate visual warning to pull over and check your engine, helping you avoid overheating damage.

Key Features and Benefits

- 2-in-1 LCD display that shows both voltage and water temperature, so you monitor two critical engine parameters from one gauge

• Includes a 1/8 NPT temperature sensor with M10 screw thread, making it compatible with many engine coolant ports

• Flashing alarm alerts you when water temperature reaches 95 to 120 degrees Celsius, giving you an early warning of potential overheating

• Sunshield design improves screen readability in direct sunlight, so you can read the display clearly while driving

• Anti-vibration and anti-bump construction that maintains stable performance on rough roads and in daily driving conditions

• Low power consumption operating on DC 9V to 36V, making it efficient for continuous use without draining your battery

Who Is This For

- Car and truck owners who want to add a digital coolant temperature gauge to their 12V vehicle

• DIY mechanics looking for an easy-to-install monitoring solution for engine health

• Drivers who haul heavy loads or drive in hot climates and need to keep a closer eye on engine temperature

• Owners of older vehicles that lack a factory-installed water temperature gauge or have a faulty original unit

Usage Scenario

Mark drives a 2003 pickup truck that he uses for weekend camping trips. The original temperature gauge stopped working last summer, and he worried about overheating while towing a trailer up mountain roads. He installed this 2-in-1 LCD gauge in about an hour using basic tools. Now he can see both his battery voltage and coolant temperature on the same screen. On a recent trip, the flashing alarm caught his attention when the temperature climbed during a steep climb. He pulled over, let the engine cool, and avoided a potential breakdown.

Micro Comparison

Many analog gauges are hard to read at night and only show one measurement. This digital LCD unit combines two functions in a single display that is easy to read in any light. The built-in alarm gives you an extra layer of protection that basic mechanical gauges do not offer.

Specifications

Material: Plastic Shell

Product Size: 100 mm x 56 mm

Power Supply: DC 9V - 36V

Digit: 3 Digit

Measuring Temperature: -10 to 120 degrees Celsius

Water Temperature Alarm: 95 to 120 degrees Celsius

Working Environment: -10 to 50 degrees Celsius

Accuracy: +/- 1%

Temperature Sensor Screw Diameter: 10 mm

Temperature Sensor Thread: M10

Package Includes

- 1x Car Gauge

Why You Will Love It

You will love the peace of mind that comes from seeing your engine's health at a glance. The dual display saves space and wiring work, while the flashing alarm gives you a clear warning before small issues become big problems. It is a practical upgrade that makes your daily drive safer and more informed.

Questions and Answers

Question: Does this gauge work on a 24V truck?

Answer: No, this gauge is designed for 12V vehicles only. The power supply range is DC 9V to 36V, but the unit is intended for standard 12V car and truck electrical systems.

Question: What size thread does the temperature sensor have?

Answer: The sensor has an M10 screw thread with a diameter of 10 mm.

Question: How do I install the temperature sensor?

Answer: You screw the sensor into a 1/8 NPT port on your engine's cooling system. If you are not experienced with car repairs, it is best to contact a local workshop for help.

Question: What does the flashing alarm mean?

Answer: The display flashes when the water temperature reaches between 95 and 120 degrees Celsius. This is a warning that your engine may be overheating.

Question: Can I read the display in bright sunlight?

Answer: Yes, the gauge has a sunshield design that helps improve visibility in direct sunlight.

Question: Does this gauge come with a wiring harness?

Answer: The package includes one car gauge. Wiring instructions are provided: red wire for power positive and black wire for power negative.