Motorcycle Water Temperature Meter Universal Digital Water Thermometer Water Temp Gauge for Racing Scooter LED Display DC 12V with Temperature Sensor Adapter(16mm, Blue)

I have had this on my V-twin motorcycle for two weeks now and 800 miles worth of riding.I got lazy and installed the temperature probe in the most visible and accessible radiator hose I could find-- the one at the bottom of my radiator, bringing the cooled liquid back to the water pump underneath the engine.This means, of course, that if my water pump stops working or my thermostat never opens, the water where my new sensor is will be artificially low, whereas the water that comes directly off the engine heads could be too hot (this top-end area is where the factory put its water over-temp warning light; right below the T-stat).Anyhow, the placement of my temp-sensor had the effect of giving me a few minutes' warning that my bike was about to overheat this past Monday. After hours of highway riding when the temp shown was about 85 C, it suddenly dropped through the 70's and 60's and into the 50's Celsius. That puzzled me at first, then I realized that this meant that the temp probe was no longer bathed in a flow of hot water, and it was instead surrounded by air. Air that was being cooled through the wind hitting the outside of that radiator pipe. 75 MPH wind, as rode down the interstate on a day when the outside air temp was around 30 Celsius.Sure enough, a minute later my factory red over-temp warning light came on.I had a radiator leak and had lost about 1/3 of my radiator's capacity. A pint or so of coolant added, alongside the road, had me back to riding the rest of the day.Wiring this device was easy, but time-consuming. There is a wire going down to the radiator hose to tell the display unit what numbers to show you. THen you need to run wires to the battery or other source for power to light up the display unit. I chose to go right next to the battery and use a quick-connect pigtail (SAE) that fits the quick-disconnect fitting for my battery tender. This means that my water temp display will not shut off when I turn the ignition off or take the key out; it will remain on when I'm parked, unless I disconnect the SAE pigtail connection. That's fine with me. I'll let the unit display my coolant temperature all day, any day I'm using the bike. But for overnight parking I'll go through the effort of pulling the plug. If I wanted to put in extra effort, I suppose I could have installed a lighted 10-amp switch inline on the positive side (well, a lighted switch would also require a ground).This unit seems accurate at the low end of its range, because when the bike is cold, parked in the garage overnight, the temp displayed for my in-radiator temperature matches the air temp in my garage as shown by two other thermometers. I have no way of comparing the "hot and running" temperature readings to anything else on my bike. But the numbers (for post-radiator coolant that's just passed through the radiator from top to bottom) seem reasonable and well within what I would expect.ONE THING about MOUNTING this unit: It comes with sticky tape to mount it to a clean flat surface.There is no such surface on my motorcycle. Maybe the fuel tank, but I wanted the gauge / display unit mounted up on my 1" diameter handlebar. So I fabricated a flat wooden mounting surface, clamped and screwed to my handlebar, on which I glued this coolant temperature gauge. It's a permanent mount, not easily removeable without destroying it, but for under $20 I didn't care. It seems to work fine and I'll leave this gauge in place for the rest of this motorcycle's working life. But if you are installing this unit on a car with a dashboard, the installation should be even easier if you have a flat, clean dash panel to mount the display unit to.

Easy to install works great. I love knowing the temp od my atv. I put it on a 2013 Polaris sportsman 500ho.

Broke on first use