Lezyne Digital Pressure Drive Hand Pump

Bought this primarily for precise pressure setting for gravel bike and cyclocross tyres. Seemed a nice bit of kit when I got it but I noticed that the pressure reading after switching the pump on before it was attached to anything, was alternating between 4 and 5 psi. I tried resetting the pump and removing the battery and replacing it but to no avail. I thought it was a defective pump but as far as I can tell (after phoning the Lezyne importers) it is almost certainly NOT. If the pressure is significantly different from that where the pump was initially manufactured then the baseline reading will be wrong. All you need to do is hold down the on/off button for up to 30 seconds I believe and wait until all the LCD segments go opaque then release the button then the baseline reading should then be zero. I suspect that this may need to be done certainly with changes in altitude and even possibly with significant changes in the weather. The information with the pump DOES mention resetting the pump but no emphasis is made of this and I think Lezyne should make this clearer. I sent my pump for replacement (not having found out the above) and they quickly sent a second pump that showed exactly the same pressure of about 4-5psi at rest... So looks like a good pump but perhaps a bit more information on the packing advising that recalibration is both necessary and normal would be useful (IMO)

Excellent pump and a huge bonus I'd the abs flex hose.. But take caution if used improperly(as I didnt)... But works remarkably well even on presta valves and shrader however anything more than a road tire (700×25c) is a challenge....Anyway the reason to choosing this version is.. I am a stickler for tyre pressures and like to see my futile slow pumping speed(but does require batteries).

It’s an expensive unit but you get what you pay for. Great purchase

Good little pump pressure readout seems relatively accurate

Received as a gift. Great idea but basically doesn't work. Just gives random numbers that bare no relationship to the actual tyre pressure when measured with a proper pressure gauge. Also had to send the first one back as it just always came up with 'ERR'.Stick with a normal pump and a cheap gauge.