Samcla Scrinster is the professional APP for managing, in field and with no Internet connection, all Samcla SCR devices. Samcla CNS602 gateway is required to connect Samcla Scrinster APP with terminal devices. Smartphone Bluetooth connection is used to connect the Samcla Scrinster APP and the gateway CNS602 each other. All basic functions are available in the APP: battery test, RF level test, Counter reading, manual watering, etc.