Dwyer Differential Pressure Gauges and Switches
Dial indicators for the difference between two pressures that also have switch outputs. Can also be used for single pressure.
Mini-Photohelic differential pressure switch-gage. Compact and low cost.
Photohelic switch/gage combines differential pressure gage with low/high set-points.
Photohelic Pressure switch/gage 3-in-1 indicating gage, lo-limit and hi-limit control
Capsu-Photohelic Pressure switch gage lo-limit and hi-limit control. Aluminum or brass case.
Photohelic Pressure switch/gage with integral transmitter. Indication gage, low and high limit control, 4-20mA transmitter.
ATEX approved Photohelic switch/gages with 24 VDC power. 3000MR or 3000MRS series in flame-proof ATEX enclosure.
ATEX Approved Photohelic switch/gages with 120, 240 or 24 VAC power. Photohelic switch/gages in flame-proof ATEX enclosures.