... actions, this is very useful when the temperature up to appointed value, need switch on the ... Mainly Features of the GSM Controller RTU5010/RTU5011:>>UP TO 8 NC/NO inputs, connect dry ... H)>>Gross Weight: 1.00Kg >>10pcs per Carton.>>>>>Optional Accessories:Water Overflow Level Sensor, Oil Overflow ... New Upgrading,GSM SMS Controller,RTU5011,Temperature UP DOWN remote control,24V DC Switch,NC NO sensor ...