The Camden 5085GPTE heavy duty mushroom push buttons are specially designed and manufactured to meet the stringent demands of high traffic exit control applications. The green button is 2-3/8" (60mm) diameter and features PUSH TO EXIT engraved in white. Switches feature 1/4" thick brushed aluminum single gang faceplates. The unit is equipped with a spring return and a DPST 1-60 second pneumatic time delay. Also known as -Camden Door Controls U.S GRN PNEUMATIC MUSHROOM BUTTN - CM-5085GPTE