Zhenming Electronics
4G and RS485 network relay controller

ZMRL0404 / ZMRL0808 / ZMRL1212 Network Relay Controller

4G and RS485 network relay controller series with 4, 8 or 12 input and output channels, 50A magnetic latching relays, offline schedules, and supported on-device RS485 sensor threshold automation for agriculture and field equipment.

ZMRL0404 / ZMRL0808 / ZMRL1212 Network Relay Controller product image

Product Positioning

4G and RS485 network relay controller series with 4, 8 or 12 input and output channels, 50A magnetic latching relays, offline schedules, and supported on-device RS485 sensor threshold automation for agriculture and field equipment.

Capability 01ZMRL0404-QCL4: 4 input and output channels
Capability 02ZMRL0808-QCL8: 8 input and output channels
Capability 03ZMRL1212-QCL12: 12 input and output channels
Capability 04Supported local RS485 sensor rules execute on the controller without a cloud round trip

Typical Applications

The page is written for engineering companies, system integrators, device manufacturers and B2B project procurement teams.

Agricultural local automationGreenhouse environment controlLivestock ventilation linkageCinema and exhibition lightingControl cabinets and remote switching

Selection Notes for B2B Projects

Control ObjectPlan the product by lighting circuit, pump, fan, cabinet output or equipment switching object instead of only by channel count.
Protocol and PlatformCheck whether the project needs RS485, Ethernet, LTE(4G), MQTT, Modbus, grouped control, schedules, logs or private platform deployment.
Circuit PlanningSeparate high-power, inductive and frequently switched loads into clear circuits and match controller selection with the cabinet design.

Integration and Deployment

Circuit ObjectsMap each output to a named lighting, pump, fan, valve, cabinet or equipment circuit and retain a clear control boundary.
Local OperationUse dry-contact inputs, wall panels, schedules or supported local rules for field operation when the selected model provides them.
Network OperationsUse the communication interfaces of the selected model for status, remote control, action records and multi-site management.
Electrical CoordinationCoordinate relay loads, contactors, protection, cabinet wiring and manual override with the electrical design.

Local Sensor Automation for Agriculture

Supported controller hardware and firmware can read Zhenming RS485 environmental sensors, evaluate downloaded upper and lower thresholds on site, and drive the mapped output without a cloud round trip. The platform remains available for rule configuration, state, remote operation and linkage logs.

On-device ruleRS485 sensorOffline executionUpper/lower thresholdsFans and pumpsValvesField alarmsRemote operations

Selection FAQ

What lighting or control projects are suitable?These relay controllers are used for smart lighting, control cabinets, equipment switching, parks, streets, campuses, hospitals, cinemas and exhibition halls.
How should relay channels be selected?Channel count should follow the number of lighting circuits, equipment groups, cabinet layout and expansion margin.
Can the controller support remote operation?Depending on the model, RS485, Ethernet, 4G, MQTT, TCP, UDP or platform access can support remote control and status viewing.

Project Inquiry

Share the application, communication method, quantity and integration requirements so we can prepare a suitable product combination.

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