FuWuZhe FWZ-R12S2i4 Industrial 4G Remote Relay Controller
12 relays | 2 x RS485 | 4 digital inputs | 4G LTE with remote switching, scheduling and automation
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FuWuZhe FWZ-R12S2i4 is an industrial-grade 4G remote controller for industrial automation and IoT applications. It integrates 12 relay outputs, 2 RS485 ports and 4 digital inputs. Bind the device by scanning the QR code with WeChat and control it remotely anytime, anywhere.
Key Features
- 12 independent relays: tap to switch each channel on the phone; channel order matches the panel
- 4 digital inputs: GND is jumpered to the controller by default, so dry contacts work directly as wet contacts; usable as linkage conditions
- Linkage tasks: input level changes trigger a relay automatically, e.g. "open relay 12 when input 3 goes high"
- Scheduled tasks: periodic (interval-based) or one-shot at a set time, e.g. switch relay 1 on every minute
- RS485 expansion: read values from 485 sensors, connect 485 actuators, and use sensor readings as linkage conditions; common 485 device protocols are built in
Platform & Protocols
The device connects via a built-in 4G LTE full-network module and supports MQTT/ Modbus / Json. Server address and port are configurable, so it integrates easily with your own cloud platform or third-party systems. A companion API is provided.
Applications
Remote control cabinets, remote start/stop of pumps, fans and lighting, greenhouses, livestock farms, energy storage equipment, distribution cabinet monitoring and any scenario requiring remote switching and automation.
Precautions
- The device is not waterproof; keep it in a dry environment
- Tighten the antenna and never place it inside a metal enclosure
- IN input tolerates a maximum high level of 12V DC; exceeding it may damage the device
- Never connect non-485 signals or power directly to the RS485 port
- New users should register and bind the device right after receiving it to verify remote control
- 12 independent relays rated 220VAC/10A and 30VDC/10A
- 4 digital inputs (dry/wet contact) usable as linkage conditions
- 4G LTE full-network support with a built-in SIM plan of 100MB/month for 1 year
- Linkage tasks plus scheduled tasks for one-tap remote switching
- Open protocols: TCP / UDP / MQTT / HTTP / WebSocket / Modbus / Json
- Connect RS485 sensors and actuators; common 485 protocols built in
- Companion API and WeChat-based control in an industrial 145x90x40mm enclosure
Delivery
This is a physical hardware product. After payment the warehouse arranges shipment; the tracking number can be checked in My Orders.
Package contents: FWZ-R12S2i4 main unit, antenna and included accessories as listed in the packing list.
After-sales
Every unit is inspected before shipment. If accessories are missing or the product is defective on arrival, contact online support or call the 24-hour hotline 4008013054.
The built-in 4G SIM plan is 100MB/month for 1 year; renewal is handled by customer service.
Refunds and returns follow the platform Refund Policy.
