The Best Obd2 Coolant Temperature Gauge of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Obd2 Coolant Temperature Gauge of 2022. Check our ranking below.

2,932 Reviews Scanned

SaleRank No. #1

wiiyii obd2 Gauge Display Heads up Display for Cars Car HUD Head Up Display P6, OBD+GPS Smart Gauge, obd2 Speedometer with Speed,RMP,Water Temperature,Overspeed Alarm,Works Great for Most Cars

SAFE IS THE FIRST----Just focus on your driving, could read speed at a glance with the digital numbers but without having to look down; This unit simply displays directly to you at whatever angle you set it up, no need to make effort to have a look, which may lead to make distractions or even cause accident.
NEW DRIVING EXPERIENCE----10 kinds interface, free switch, LCD meter, clear fault code, read data stream; 2 install way with adjustable bracket, put on dashboard or stick to windshield, easy operation, non-destructive installation.
A MUST HAVE----If you don't want your driving record to have points on it or pat hundreds of dollars in speeding tickets; If on a major highway, you really want to know how fast you are going; If your wife get worried and want to see you're not driving so fast as she feels; Or if you would like to solve your problem of never knowing how fast you are going, this speedometer perfectly matches your need.
DRIVING MORE COMFORTABLE----When driving normally, the ambient light is blue color(automatically adjusts the brightness according to the environment ); when driving abnormally, such as speeding, the ambient light will be changed to Red color for alarming.
MORE SMOOTH & STABLE----Common meter only has OBD mode, but ours is dual mode: OBD+GPS 2-in-1, the default display OBD+GPS function at the same time, and data display is more abundant. OBD system, can read more than 100 kinds of data in the car. If the vehicle doesn't have OBD2 protocol, only displays GPS function.

Rank No. #2

ScanGauge - SG2 Ultra Compact 3-in-1 Automotive Computer with Customizable Real-Time Fuel Economy Digital Gauges for OBD2 Vehicles

Programmable 3-In-1 Automotive Trip Computer, Diagnostic Scan Tool, And Up To 37 Digital Gauges In One (Vehicle Dependent)
Watch Fuel Consumption, Cost-Per-Mile, Coolant Temperature, Engine Speed, Horsepower, And Much More In Real Time. Simple 5-button operation allows you to quickly and easily access the powerful features of the ScanGauge.
Works On All 1996 Or Newer Obd2 Cars, Including Gas, Diesel, Propane And Hybrid Vehicles with 16pin OBD2 port.
Checks For Diagnostic Trouble Codes (Dtcs), Clears The Codes, And Can Turn Off The "Check Engine" Light
No Batteries Required : The single connection to the diagnostic connector under the dashboard is all that is needed.

SaleRank No. #3

AZIJYV OBD2 Gauge Display,Head Up Display for Cars,Speedometer with Speed,Engine RPM,Clock,Overspeed Alarm,Water Temperature Alarm,Fatigue Driving Reminder,Fits Most Post-2008 Models

【About B3】B3 is an OBD2 system speedometer, which can read the whole car data and display it on the screen, so that you can clearly see the car's driving data while driving. The machine adopts gradient color structure with clear image and technical sense.5.5 inch large screen can display multiple data at the same time.
【Carefully designed】The head up display features a graceful curved design with tight small patterns and exquisite polishing on the exterior. The 30mm deep brim display does not leak out, and the dial button can be operated with one click. It is equipped with a built-in photosensitive element and features an OBD interface. The B3 head up display is meticulously crafted, with every inch carefully crafted using seamless fastening technology, making the B3's form more exquisite. The semi-circular three-dimensional design makes the body more rounded.
【B3 Function】The OBD speedometer has multiple functions, such as vehicle speed, RPM, water temperature, fuel consumption, single travel time, single travel distance, voltage, etc. In addition, the product also has various prompt functions, such as overspeed alarm, speed alarm, water temperature alarm, voltage alarm, fatigue driving reminder, etc. If the set limit is about to be reached, the machine will issue a warning, which is very intelligent. Many features can protect your driving.
【Driving Safety Tips]】What is the most important thing about driving? As we all know, life safety is the first priority, speeding and fatigue driving are not allowed, our HUD has two important reminders, speeding alert and fatigue driving alert, when the speed exceeds your set value, it will send out a ticking sound to remind you to reduce the speed; the driving time is more than 4 hours will remind you that you need to take a short break during the journey, in a word, it's a caring safety housekeeper.
【Automatic Light Sensitivity】Are you worried about not being able to see the product's screen in different environmental brightness? Don't worry, our products have automatic light-sensitive function. Whether you use it in the daytime or in the dark, the product will adjust the brightness by itself according to the brightness of the environment. Therefore, you can see the product's picture clearly in any environment. If you are not satisfied with the automatic light sensitivity of the product, you can manually adjust it to your favorite brightness.

Rank No. #4

KONNWEI KW206 OBD2 HUD Digital Gauge, Smart Car Trip Computer & Engine Diagnostic Reader, Real-Time Display of Speed, RPM, Coolant Temperature, Fuel Economy, Fault Codes, for OBDII Vehicles 2003+

🏆 【All-in-One OBD2 HUD Display & Diagnostic Scanner】The KONNWEI KW206 OBD2 HUD Digital Gauge combines a smart trip computer, engine diagnostic tool, and real-time driving monitor in one device. Its 3.5-inch full-color LCD shows speed, RPM, coolant temperature, fuel consumption, voltage, throttle position, intake pressure, and more. Functions as a professional OBD2 scanner and code reader to read/clear DTC codes, perform check engine light reset, and display real-time live data. A must-have car diagnostic tool for DIY car owners and mechanics who want both a stylish HUD display and powerful diagnostics.
【Professional OBD2 Diagnostic Tool with Full-System Scan】This automotive scan tool provides real-time data stream analysis, freeze frame data, and I/M readiness checks, helping detect issues like oxygen sensor failure, EVAP leaks, misfires, and fuel trim errors. With one-click code clear, it instantly resets the check engine light and clears fault codes. Compatible with all OBDII/EOBD-compliant vehicles (2003 & newer)—including gasoline, diesel, and hybrid cars using CAN, ISO9141, J1850, and EOBD protocols. An ideal engine code reader and diagnostic scanner that saves time and repair costs.
🚖 【Smart HUD Display with Real-Time Driving Data & Safety Alerts】The KW206 car HUD display projects speed, RPM, and coolant temperature directly into your line of sight, reducing distractions and improving driving safety. Features four intelligent alerts—overspeed warning, high engine temperature alert, low voltage warning, and RPM limit reminder—to prevent potential damage. Supports 0–100 km/h acceleration test, auto brightness adjustment, and multiple screen themes for customizable viewing. The head-up display (HUD) combines safety, technology, and convenience for smarter driving.
🔌 【Plug and Play Installation, User-Friendly Interface & Universal Compatibility】The KW206 OBD2 digital HUD is fully plug-and-play—no Bluetooth, Wi-Fi, or extra setup required. Just plug into the 16-pin OBDII port and it automatically powers on. Features an intuitive 4-button interface, unit switching (metric/imperial), trip mileage tracking, voltage monitoring, and multiple display layouts. Works with most OBD2 vehicles 2003 & newer—including Ford, Toyota, GM, Honda, Nissan, BMW, Audi, Volkswagen, Mercedes-Benz, and more. Perfect for home users, professional mechanics, or fleet management.
⚙️ 【High-Speed Performance, Accurate Readings & Lifetime Updates】Powered by a high-speed chip processor, the KONNWEI KW206 OBD2 diagnostic tool delivers fast refresh rates and accurate live readings for smooth, stable performance. The auto-sleep function saves energy when the engine is off. Includes lifetime free software updates, ensuring compatibility with the latest vehicle models. Trusted by thousands of drivers, this OBD2 scanner and HUD display guarantees professional-level accuracy for all your car diagnostics.

Rank No. #5

VJOYCAR V70 OBD2 Gauge Cluster HUD Heads Up Display, Car Computer OBD ii Scanner Speed Engine Coolant Temperature Fuel Consumption Digital Speedometer Mileage Overspeed Voltage Faulty Code Alarms

【HUD Display】Classic 5.8" Large Screen HD LCD HUD for cars, with driving speed MPH or KM/H and speeding alarm. The normal HUD only works on the cars after 2008, but this display is built in all OBD2 protocol include J1850/CAN/ EOBD protocols, it can works on most cars and some pick-up truck on the market since 1997. Attention: for old cars, it may only display few pieces data; for some special car, it may not open any data at all. It can't work on bus, truck, pick-up...this special vehicles.
【OBD Gauge HUD】it’s a powerful OBD2 scanner and gauge tool, can display vehicles speed, RPM, engine coolant temperature, odometer, engine load value, intake air temperature, voltage, EGR error, fuel level, Fuel Rail Pressure…around 96 PIDs. However, each car will shows different data based on protocol compatibility and Openness.
【OBD2 Gauge Tool】it’s a smart car computer/ diagnostic tools, can display and monitor engine data, active the alarm to alert drivers: over speed alarm, RPM alarm, ECT alarm and voltage alarm…it can also display 0-1000KM speed up time. Alarm can be off, bright can be adjusted, screen is 180° change, two install methods standby on dashboard and upside-down on windshield.
【Plug and Play】This handy tool comes with a cable, one port is type-C plug to the device, the other port is OBD with 16 pins, plug into your car OBD port, it will be on and search your car engine protocol, then display your car engine public data. When car ACC is off, it will be off automatically also.
【Service Contact】During usage, if need any fast assistance, pls don't hesitate to let us know at any time; if it can't work on your car, pls contact with us also. Amazon don't allow put personal contact information, pls kindly give us message, we are availables 7days/24hours.

Rank No. #6

KONNWEI KW206 Car OBD2 HUD Digital Meter Gauge All in One Automotive Trip Computer Smart OBD Speedometer Water Temperature Fuel Pressure Tester for All 2003 and Newer Cars

ALL IN ONE OBD2 GAUGES ➤ KW206 Car OBD2 HUD display is the combination of automotive trip computer gauge and diagnostic scan gauge. Not only it can display up to hundreds of real-time engine parameters in its digital 3.5’’ color screen like speedometer, RPM, water coolant temperature, fuel consumption, total mile ... but also can read engine fault codes and turn off the check engine light. Perfect household tool and present for daily use! NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE.
PROFESSIONAL OBD2 SCANNER ➤ the KW206 car hud is newly designed as an enhanced HUD display and car diagnostic scanner, it’s a smart OBD2 gauge for car owners to quickly read and erase DTC (engine fault codes) and check Live Data Stream which can help you to accurately identify the cause of your CHECK ENGINE LIGHT and perhaps fix it without going to see your dealer.
SAFETY DRIVING HUD ➤ the KW206 is an upgraded version of car Head-Up Display with its high updating rate, warning systems and more. Accessing data directly from car computer and display it in a large digital 3.5in color LCD, avoid accident happening when you’re driving with head down. Besides, 4 parameters alarm including RPM, VSS Speed, ECT (Engine Coolant Temp), Voltage can be set to help you reducing over-speed risk and tickets, developing a good driving habit and safety.
UNIVERSAL COMPATIBILITY ➤ Works on all 2003 or newer OBDII certified gas/diesel engine cars, SUVs, Light Trucks, including J1850/CAN/ EOBD protocols vehicles. Simply plug into car's OBDII Port, it will get power on automatically and follow the on-screen instruction to go. On Top 4-buttons operation allows you quickly and easily access the powerful features of the KW206 Digital Meter Gauge.
EXTRA FEATURES ➤ KONNWEI KW206 supports the unit switch from metric to imperial like KM-Mile, auto-adjust screen brightness, fast data transmission rate, 0-100 speed-up test. Also it supports lifetime software update to fix any possible issue; You can leave obd2 gauges stay in the car without unplugging, KW206 will automatically enter sleep mode when engine off, power on while detecting the ignition. Definitely it’s an essential OBD2 digital gauge for every car owner.

SaleRank No. #7

OBD2 Gauge Display, Car Speedometer Display OBD2+GPS Dual Mode, Fit Gasoline Cars 2008-2025, 3.5" IPS Screen, Turbo Gauge, 6 Alerts, 8 Color Ambient Lights, 5 Themes

OBD+GPS Dual System : Our speedometer has an automatic OBD+GPS switching function, which ensures that the data is continuously displayed even if the car's computer fails, speed unit: KM/H & MPH switch freely
Compatible With: 90% Small Gasoline Cars after 2008.(Not for Suzuki, Not for Ssangyong, Not for Renault, Not for Fiat, Not for Dayoo, Not for Dodge, etc.)
Incompatible With: Not for All Cars before 2007, Not for All Diesel/Hybrid/Electric Vehicles, Pickup Trucks, Passenger Cars, Motorcycle, Bicycle etc, Support OBD2 Protocol: ISO14230-4(KWP2000), ISO15765-4(CAN-BUS), ISO9141-2, the others are not
OBD2 Mode: Speed(KM/H,MPH), RPM, Time, Coolant Temperature(Note: some cars will not display), Voltage, Fuel Consumption(Note: some cars will not display), Driving Time, Driving Distance, Brake Test, Turbo Pressure(Note: some cars will not display),Clear Fault Code, Accelerated Test, Oil Temperature(Note: some cars will not display), Engine Load
GPS Mode: Speed(KM/H,MPH), Time, Voltage, Compass, Driving Time, Driving Distance, Brake Test, Accelerated Test, Satellite Number, Altitude

SaleRank No. #8

OBD2 HUD Multi Function Gauge with Alarm, Reminder for Speed, Temperature, Voltage

[WIDELY APPLICATION] Suitable for cars with OBD2 interface and protocol.
[MULTI-FUNCTION] Displays vehicle speed, water temperature, voltage, and single mileage.
[ALARM FUNCTION] Alerts for overspeed, water temperature, voltage, fatigue driving, and faults.
[HIGH-DEFINITION DISPLAY] Clear, no ghosting, with clear backlighting and reflective film.
[ADAPTIVE LIGHT-SENSING] Clear backlighting during the day, soft at night without glare.

Rank No. #9

X AUTOHAUX OBDII Multi-Function Digital Gauge KMH MPH Digital Speedometer Oil Temperature Gauge Battery Voltage Tester Scanner for 12V OBDII Auto Sedan SUV Pickup After Year 2006

[Fitment] for OBD2 12V American, European and Asian car series. Only fit for car after 2006, but especially note that it CAN NOT support electric vehicles, sports cars, van and hybrid vehicles.
[Warning Function & Trouble Code Scan/Clear] Supports water temperature warning, over-speed alarm, shifts reminding, vehicle malfunction warning. It also can read the real time data stream, scan and clear 12V OBDII engine fault code.
[Multi-function Meter] This OBD2 gauge is a smart and powerful multi-functional meter. It is specially designed for vehicle without speedometer, engine temperature gauge, oil thermometer, boost gauge and fuel consumption meter, engine oil temperature as well as time display.
[Easy Installation] Easy connection with the help of OBD port and cable. No need to modify the wire. Comes with mount and dual-sided tape which help tightly fix on platform.
[SMART DIAGNOSIS] MPH or KMH can be converted via setting. Electronically controlled diagnosis system access you to SCAN DTCS, Erase DTCS and Data stream, you can choose whether to clear car faults.

SaleRank No. #10

OBD2 Gauge Display, Heads Up Display for Cars, Digital Speedometer for Car with Water Temperature, Voltage, Fuel Consumption, RPM, Overspeed Alarm,obd2 Gauge Speedometer Suitable for All Car

P6 Speedometer Product Introduction: This heads up display for cars is a brand new upgraded version of the OBD+GPS intelligent instrument panel, with a very beautiful LCD display screen that looks great on your vehicle. Ordinary instruments only have OBD mode, while P6 is an OBD+GPS dual-mode system, which is more stable, smoother, and has richer data display
Please Note: This obd2 gauge display head up display has dual modes of GPS and OBD, and comes with an OBD cable and USB cable. However, it is worth noting that the OBD system is only applicable to some gasoline vehicles manufactured after 2009; If your car is a diesel or pre-2008 model, you can only use GPS mode. If the OBD system is not compatible, please switch to the GPS system
Speedometer Function: The functions of the heads up display for cars OBD system include vehicle speed, water temperature, voltage, fuel consumption, speed, single mileage, total mileage, driving time, driving direction, search for stars, altitude time, intake pressure, oil temperature, air-fuel ratio, turbine pressure, intake pressure, acceleration test, brake test, clearing fault codes, reading data flow alarm function; The functions of the heads up display GPS system include vehicle speed, voltage, satellite time, altitude, satellite quantity, driving direction, single mileage, driving time, acceleration test, brake test, and alarm function
Automatic alarm function: The car head up display has multiple alarm functions that can improve driving safety, such as overspeed alarm, speed alarm, water temperature alarm, and voltage alarm. During normal driving, the ambient light appears blue (automatically adjusts brightness to adapt to the environment); When driving abnormally (such as speeding), the ambient light will turn into a red warning, which better enhances driving safety and safeguards your driving journey
Product features: This tablet monitor has multiple functions to meet your various needs. HUD has 12 different screens that can be freely switched, bringing you a brand new driving experience; Multiple installation methods allow for easy placement, ensuring clear and natural installation in any corner without obstructing your line of sight

Last update on 2025-11-27 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Obd2 Coolant Temperature Gauge?

Do you get stressed out thinking about shopping for a great Obd2 Coolant Temperature Gauge? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Obd2 Coolant Temperature Gauge, which is why we have assembled a comprehensive list of the greatest Obd2 Coolant Temperature Gauge available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Obd2 Coolant Temperature Gauge that you consider buying. Your questions might include the following:

Is it worth buying an Obd2 Coolant Temperature Gauge?
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We’re convinced that you likely have far more questions than just these regarding Obd2 Coolant Temperature Gauge, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Obd2 Coolant Temperature Gauge, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Obd2 Coolant Temperature Gauge. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Obd2 Coolant Temperature Gauge buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Obd2 Coolant Temperature Gauge currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Obd2 Coolant Temperature Gauge has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Obd2 Coolant Temperature Gauge?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Obd2 Coolant Temperature Gauge.
Customer Ratings: Number ratings grade Obd2 Coolant Temperature Gauge objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Obd2 Coolant Temperature Gauge.
Product Quality: You don’t always get what you pay for with an Obd2 Coolant Temperature Gauge, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Obd2 Coolant Temperature Gauge is should be an indication of how long it will work out for you.

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The Best Obd2 Coolant Temperature Gauge of 2022 – Reviewed and Top Rated

How Do You Buy The Best Obd2 Coolant Temperature Gauge?

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