Application of small differential pressure gauge: 

For high accuracy-graranteed within 2% of full scale. indicate low air or non-corrosive gas pressures –eighter positive ,negative(vacuum)of differential. The design resists shock ,vibration and over-pressures no Manometer fluid to evaporate, freeze or cause toxic or leveling problems, it's inexpensive too .

Specifications of small differential pressure gauge:
Model No.: DPG2000
Name: Differential pressure gauge 
Gauge Size: 4"dia. x 2-3/16"deep.
Accuracy: ±2% of Full scale ( ± 3% on 0,-100Pa,-125Pa,100mm and ± 4% on -00,-60pa,-6mm ranges)
Range available: -20 inHg to 15 psig, (-0.677 bar to 1.034 bar)
Over pressure : Relief Plug opens at approximately 25psig(1.72bar) standard gauges only
Temperature Limits: 20- 140 °F(-6.67 to 60°C)
Mounting Orientation: Diaphragm in vertical position , cousult factory for other position .
Process connection : 1/8"NPT ,dupliate high and low pressure taps –one pair side and one pair back .
Standard Gauge accessories: include two 1/8"male NPT plugs for duplicate pressure taps, two 1/8"male NPT pipe thread to Rubber tubing adapters, and three flush mounting adapters with screws.