... .3A relay output PD305/pressure controller with relay output1 PD306 pressure controller is a digital pressure gauge with one relay output and RS485 ... measurement.SPECIFICATION : Connection: G1/2,1/2"NPT,1/4"NPT, M20x1.5(optional)Protection Class: IP 65Case: Diameter ... shift: conversion among four units of MPa,KPa,Bar,PsiDisplay: 4-digit LED, character height 18.00mmOver pressure: 2xFSStability: <±0 ...