Magnetospeed is probably the least worst. Some are waiting for Labradar - promises to be the best, but availability uncertain. If you want something cheap but reasonably reliable, I'd go F1 Chrony.
Magnetospeed is what Im using. Huntsman Firearms in Qld has them. Last time I looked the dollar made it cheaper to buy from Huntsman that it did to get it over from USA myself.
AlanF wrote: If you want something cheap but reasonably reliable, I'd go F1 Chrony.
Alan
If you're getting a Chrony get one with the remote display. I have the Beta Master and I'm happy enough to keep it but the Magnetospeed is much more convenient to use. I got an email from the doppler radar people a little while ago to say that they're now on sale - but only in the US.