Perfect integrator of IoT and on-site equipment ◆Solves the problem of manual switches for IoT systems in on-site equipment. ◆Modular manufacturing, no customization required, with stable and reliable products. ◆Easy maintenance, no need to check wires, foolproof connectors, and replacement of circuit boards to resume normal use. ◆Quickly connects to old panels and brings IoT directly, saving time on checking wires and building. ◆Can be remotely monitored and operated through a web page on the network without programming. ◆Equipped with protective devices to avoid rapid setting of reversal (forward and reverse device). ◆Plug-in relays can be quickly replaced without shutting down. ◆Can control up to 16 sets of devices. ◆Equipped with lightning protection for power and signals. ◆Each relay has 5 sets of timing schedules and 7 sets of logic controls that can be set. ◆Equipped with 4G (optional) and WiFi communication. ◆Optional load current detection can provide real-time device status information and push abnormal messages proactively. 《Applicable places》 Aquaculture, plants, animal husbandry, breeding plants, various controls