Model A Configurations

A _ _ _ _ - _ _

Series A1		The Series A1 is a low cost digital differential pressure gauge with numeric indication and optional 4-20 mA output.
Series A2		The Series A2 is similar to the A1, but includes a "process arch" of LED's across the top of the gauge to mimic the movement of an indicating needle.
Series A3		The Series A3 includes a programming menu that allows pressure, velocity, and flow readings along with configuration of setpoints and other parameters. The A3 is available with (2) SPDT relays, and a 4-20 mA output.
Series A4		The Series A4 is similar to the A3, but uses a much brighter easier to read OLED programming display in place of the LCD used on the A3. The A4 is also rated to lower temperatures than the Series A3.