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Your cart is empty. Specifications:
- Temperature Range: 14–302°F
- Sensor Type: 1/8" NPT threaded waterproof sensor
- Maximum Current: 0.3A
- Power Supply: 12V DC (compatible with cars, trucks, boats, and marine/industrial equipment)
- Display: Bright LED screen with auto-adjusting backlight
- Protection Rating: IPX7 waterproof & dust-proof housing; shockproof design
- Compatibility: Universal fit for automotive, marine, motorcycles, and small machinery
Advantages
Plug-and-Play Installation:Standard 1/8” NPT sensor threads and 12V DC compatibility ensure quick setup in most vehicles/machines—no complex wiring.
Real-Time Accuracy:High-speed sensor updates readings every 0.5 seconds, preventing engine damage with reliable temperature tracking.
Programmable Overheat Alerts:Set custom temperature warnings (audible/visual) to act before critical engine failure occurs.
All-Weather Readability:Auto-adjusting LED backlight stays clear in direct sunlight, nighttime, or rainy conditions.
Built for Tough Environments:IP67 waterproofing and vibration resistance handle off-road bumps, marine splashes, and dusty worksites.
Space-Saving Design: Fits cramped dashboards, engine bays, or marine consoles without blocking visibility.
Low Power Consumption:Energy-efficient LED display minimizes battery drain during long-term use.
Package
- 1x Digital LED Water Temperature Gauge
- 1x 1/8” NPT Thread Waterproof Sensor
- 1x User Manual (with troubleshooting guide)
Why Choose JJCOCO?
Engineered for durability and precision, this gauge is a must-have upgrade for drivers, boat owners, and machinery operators. From daily commutes to extreme off-roading, it delivers peace of mind with instant overheating detection and rugged reliability.
Note: Compatible with coolant/water systems using 1/8” NPT ports.
Jay
Reviewed in the United States on May 4, 2025
Easy to wire up overall seems to say the temperature with in a +/- 5f range.Using this to monitor coolant temperatures and it seems to be working as intended
rpeters
Reviewed in the United States on May 18, 2025
I tested the unit in the air and it read accurately. But, be forewarned - the directions are odd at best. They indicate you should push the power button.... There are two buttons on the unit. Both unlabeled. Not identified in the instructions either. LOL. But, not hard to figure out. Instructions also show a switch needs to be wired in, even though it calls one of the buttons (not sure which) a power button. All that said, it does work and seems to be pretty accurate.
Josh
Reviewed in the United States on May 14, 2025
Shipping was quick, and item looks to be as described. Hooked the sensor up to a battery and it functions under voltage. I got this for a cross kart build I’ve got going on and wanted to be able to monitor engine coolant temps. Haven’t gotten to test the gauge out for accuracy yet but it’s a nice looking gauge and will be perfect for my use!
Username
Reviewed in the United States on May 11, 2025
Bench tested and works as intended. Will be using an inline radiator hose coupler with an 1/8NPT hole for the sensor and going to make a bracket to flush mount the display into the dash of my custom build. Excited to get it all fitted in now. Adds a modern touch to an old school dash that im looking for
Kyle
Reviewed in the United States on May 10, 2025
Easily best addition to my Mitsubishi bulldozer. The sensor threaded right into factory metric treads. Clear well lit display makes it easy to read st a quick glance. Seems to be well made and an accurate when compared to the reading taken with An infrared temp gun.
Fred Bloggs
Reviewed in the United States on April 30, 2025
The JJCOCO Digital Water Temperature Gauge is a practical tool for monitoring the coolant temperature in various vehicles, including cars, trucks, and marine applications. Here’s a review based on its features and performance:Features:Temperature Range: The gauge measures temperatures from 14°F to 302°F, making it suitable for a wide range of applications.Sensor: It comes with a 1/8 NPT sensor, which is a standard fitting for many automotive and marine applications, ensuring compatibility with most systems.Real-Time Monitoring: The digital display provides real-time temperature readings, allowing users to monitor coolant temperature effectively.LED Display: The bright red LED display is easy to read, even in low-light conditions, which is a significant advantage for nighttime driving or marine use.Waterproof Design: The gauge is designed to be waterproof, making it suitable for use in various environments, including wet conditions often encountered in marine settings.12V Compatibility: It operates on a 12V electrical system, which is standard for most vehicles, ensuring easy installation.Performance:Accuracy: Users have reported that the gauge provides accurate temperature readings, which is crucial for preventing overheating and ensuring optimal engine performance.Installation: The installation process is generally straightforward, especially for those familiar with automotive electronics. The included sensor fits well in most applications.Durability: The waterproof feature adds to its durability, making it a reliable choice for long-term use in harsh conditions.Pros:Easy-to-read LED display.Wide temperature range.Waterproof and durable design.Accurate real-time monitoring.Compatible with a variety of vehicles.Cons:Some users may find the installation challenging if they are not experienced with automotive electronics.The red color of the display may not appeal to everyone, especially those who prefer a more neutral color scheme.Conclusion:Overall, the JJCOCO Digital Water Temperature Gauge is a solid choice for anyone looking to monitor coolant temperatures in their vehicle. Its combination of accuracy, durability, and ease of use makes it a valuable tool for both casual drivers and automotive enthusiasts. If you need a reliable temperature gauge for your car, truck, or marine vehicle, this product is worth considering.
Bruce P.
Reviewed in the United States on April 29, 2025
This is much smaller than other units, and thus much easier to place in the vehicle.
Normal American housewife
Reviewed in the United States on April 25, 2025
This is EXACTLY what i needed for my jdm build. It’s so hard to find obscure pieces like this without clawing through the discount marine tracks. Amazon always comes through with everything i need. I haven’t installed yet but i tested and it works perfectly. My hubby is super jealous that I’m better at sourcing these parts than hee is, lol. Just stop combing through Honda parts catalogues and do an amazon search….
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