... 96*96mm 2 control relaysRS485 modbus-RTU 1GeneralWHD Series T&H Controller is mainly used to control the temperature ... It can display or loop display the data of T&H on its LED. And the same time, ... its relay output. 2.Characteristic· With the Swiss digital T&H sensor, high accuracy and simple wiring;· Each ... rupture Alarm Sensor option: 01---1 T 11---1 T&H 02---2 T 22---2 T&H 03---3 T 33---3 T&H