Topeak Smart D2 Digital Gauge

This is a wonderful little tool for checking your tyre pressures, it's compact, easy to use and very accurate indeed. No problems fitting it to the valve or taking a reading and checking against another brand it seems accurate. If you want one and are looking for a good deal then this may be for you, its certainly good enough for me.

Bought this for checking my bike tyres pressure and although quite expensive, the other reviews online about it being good are correct. I now use this as my main gauge when setting my tubeless or tube tyre pressures. The digital display is easy to see, the continuous reading is great as you use the release button to reduce the pressure to what you need. Works across schrader and normal car tyre valves so covers my road and hybrid bike. At first it was fiddly to use and I found I let a lot of air out to begin with when taking a reading, but once you get used to holding it at the correct angle it just works and I now find it simple to use and more accurate than my track pump gauge. Generally now pump up higher than required pressure on track pump then use this and the release button to get the specific pressure I want. Excellent bit of kit and worth the hefty price tag. It also stows away nicely as its pretty small, so fits in my wheel bag when heading to an event.

Pressure readings are consistent all the time - how accurate I am not too sure. It's very light and the plastic feels strong but I won't say it's high quality. Liked the twistable head although I didn't really needed it. Really liked the pressure release button which was the main selling point of this product - it's not common to have with digital pressure gauges.The transparent screen shield fell off after about 6 months of usage exposing the 7-segment LED display which was very disapointing especially for this price point. But this was easily stuck back on again with some superglue.Usually when I adjusting pressure on my tyres I first measure the pressure with the gauge, then pump up with a foot pump, then release pressure with gauge. I find that the auto power-off feature is way too quick! After I pump up tyre which takes about 10-20 seconds the gauge already is already turned off! Switching it back on again means I have to set the gauge to pressure release mode (continuous reading mode) again. This is the only thing I really dislike about the gauge.

Really useful. Just goes to show how inaccurate the gauge is on my track pump! Easy to use and consistent, good build quality and the twist head is a nice touch

This is the second one I have bought. Not the cheapest pressure gauge but accurate and deals with the two most common valve types meaning it covers my car, motorcycle and pedal cycles. The only reason I bought this second unit is I have mislaid my original. However it’s so good I didn’t want to be without it. If I find the original I will just keep it in my bike kit and the new one by my pump in the shed.

Very good and useful I like it so much I use it for my car mostly I highly recommend this product

Looks great and actually worked well for a while but now leaks air when taking a reading. Apparently no adjustment to tighten the seal or opportunity to replace it so what started so well is now a disappointment. Display clear and functionality OK.

Reliable, simple, and smart—this gauge makes accurate readings a breeze, whether I’m prepping bike tires or checking air forks and rear shocks (up to 250 psi/17 bar). It’s helped me dial in pressure better than any pump gauge ever did. Highly recommended for cyclists or anyone who demands precision in tire pressure tuning!