In choosing a pressure difference gauge, the following should be considered:
1- Selecting the type of gauge (digital-dial)
4- Dry or oily selection of the piece
5-type confusing connection
6. Work pressure difference
The DWYER differential pressure gauge in the PHOTOHELIC and CAPSU-PHOTOHELIC models provides the user with an option to display the pressure difference in the direction of the desired point and output mA (20-4) for the user.