ControlByWeb
ControlByWeb designs and manufactures industrial IoT controllers for remote monitoring, control, and data acquisition. Flagship products like WebRelay® and the logic controllers deliver no-code configuration, open APIs, and support for protocols such as Modbus and MQTT for fast system integration. Built in the USA, the platform combines industrial reliability with optional cloud and cellular connectivity for secure edge-to-enterprise deployments.
Featured Products by ControlByWeb
WebRelay-Quad™ Web-Controlled 4-Relay Modules
Engineered to streamline relay control with powerful yet accessible options.
Original WebRelay-Quad™ 4-Relay Modules
Designed to provide a fast, easy, and cost-effective way to remotely control equipment over IP.
WebRelay™ Single Relay & Input Modules
Updated firmware and optional Wi-Fi® or cellular connectivity for remote relay control at the edge.
Original WebRelay™ Single Relay & Input Modules
Offers reliable remote relay control and discrete signal monitoring over any IP network.