WIKA’s liquid type manometer is the best pressure indicator. If you have
a portable workshop, place this gauge on the forge and you will not
have to worry about any damage caused by vibrations, since all it’s
mechanical parts are covered with glycerin which in combination with the
stainless steel case, makes it very durable. Provides precision
measurements, either in Bar or Psi and the thread is 1/2″ to fit in all
forges and gas bottles.