Dwyer DPGA-09 is a digital pressure gauge with 1% accuracy, ideal for measuring air and compatible gases. It has a temperature range of 30 to 120°F, and an enclosure made of durable ABS plastic. The gauge features a 4-digit LCD display, a replaceable 9V alkaline battery, and a 1/4" male NPT process connection. With a pressure limit of 2X the pressure range and a vacuum range max pressure of 30 psig, this gauge offers reliable and precise readings. Its compact dimensions of 2.62" OD x 1.52" deep make it suitable for various applications, and it also has a built-in auto shut-off function for power saving.