?
You mean pressure gauge, right?
I have learned a new word. thanks.
I got a Topeak D2 recently and it seems to do a good job and showed that my track and shock pumps were both off by varying amounts. It claims to work on shocks as well but in practice I found that even the small bit of air that was released from the rear shock when removing the gauge meant a loss of about 5-10psi so I just use it for the tyres and fork.
I've just got the topeak D2 for cross - £20. Works great but I've had a couple of gauges and the proof of the pudding is how well they last, they seem to deteriorate IME, I think because sealant from tubeless tyres can contaminate them. This one is well reviewed, though.
Pressure gauges on both my floor pumps are completely useless up to around 30psi - they seem to wake up after that so are OK for getting a measurement on road tyres at 90psi or whatever.
D2s seem to over-read by a couple of PSi. Think the STW test found this and mine seems to do similar
The blue Schwalbe ones.
Cheap, easy to use and read, tough, light and the first battery on mine lasted 7 years
Manometer do doooo da doo do