Dwyer MP-000 Mini-Photohelic® Differential Pressure Switch/Gauge is a versatile and accurate device for measuring pressure in air and non-combustible gases. With a temperature range of 20 to 120°F and an accuracy of ±5% FS @ 70°F, it is ideal for various applications. It has a power requirement of 24 VDC / 24 VAC and offers easy installation with screw type terminal block. The switch features (2) SPDT relays and push button set point adjustment. Its compact dimensions of 4-1/8" depth x 3-1/16" diameter make it suitable for space-constrained environments. Standard accessories include mounting screws and a hex allen wrench.