High-performance UHF RFID reader/writer with outstanding read speed and long-range identification. Compact 75.15×58.35×25 mm, 156 g body — purpose-built for AGV, production lines, and asset management. The ideal choice for smart logistics, automated material handling, and Industry 4.0.
Standard UHF tags read beyond 10 m; even 4 mm miniature tags read reliably.
Multi-tag simultaneous read — meets real-time bulk inventory demands.
Advanced RF design — stable operation in dense multi-tag, multi-reader environments.
MODBUS RTU, RJ45, CAN Bus, Bluetooth 5.1, RS-485, RS-232 — full coverage.
Opto-coupler (DC 5–30V), vibration trigger, comms-controlled, auto-sleep power saving.
Dust-, rain-, water-resistant; storage -40°C to +70°C for harsh environments.
75.15 × 58.35 × 25 mm, only 156 g — easy to embed into AGVs and line mechanics.
Simultaneous CE, NCC, FCC certifications — ready for multi-region deployment.
Four engineering upgrades that turn the PLUS into a full industrial reader platform.
Added CAN Bus interface
Built-in TCAN3413 transceiver supports CAN 2.0 A/B, up to 1 Mbps. Covers 7 upper-layer protocols: CANopen, J1939, OBD-II, ISO-TP/UDS, NMEA 2000, DeviceNet, Raw CAN. Directly interfaces with AGV controllers, vehicle ECUs, marine, and building BMS systems.
Shared 4-pin terminal block
Firmware-switchable, no rewiring required. Pin1 = 485A = CANL, Pin2 = 485B = CANH, Pin3 = V+, Pin4 = GND. Only MAX485 or TCAN3413 is active at a time, preventing physical-layer contention.
| Pin | RS-485 | CAN Bus |
|---|---|---|
| 1 | 485 A | CAN L |
| 2 | 485 B | CAN H |
| 3 | V+ (DC 12–48 V) | |
| 4 | GND | |
Built-in browser dashboard
Connect via browser to http://ws-rfidby-plus2.local: dashboard, RFID config, tag list, real-time CAN oscilloscope + terminal log, OTA firmware updates, and password-protected access control. Zero install, zero drivers.
Direct-to-cloud forwarding
Tags uplinked direct to cloud; 5 built-in transports with Bearer Token and MQTT user/pass. Real-time or scheduled batch send.
Every parameter — verified against the datasheet.
| Working Frequency Working Frequency | CE · 915 – 921 MHz NCC · 920 – 928 MHz FCC · 902 – 928 MHz |
| Protocol Protocol | ISO 18000-6C (EPC GEN2) |
| RF Output Power Output Power | 1 W |
| Antenna Antenna | Built-in |
| Read Range Read Range | ≥ 10 m · 4 mm tags supported |
| Comm. Protocol Communication Protocol | MODBUS RTU · AT Command |
| Wireless Wireless | BLE 5.1 |
| Wired Interface Wired Interface | RS-485 · RS-232 · RJ45 · CAN 2.0 A/B (select one) |
| Trigger Trigger | External · Vibration · Comms |
| Voltage Working Voltage | DC 12 ~ 48 V · 1 A |
| Sensors Built-in Sensors | Vibration Sensor · Temperature Sensor |
| Storage Temp. Storage Temperature | -40 °C ~ +70 °C |
| IP Rating IP Rating | Dust / Rain / Water resistant |
| Certification Certification | CE · FCC · NCC |
Select the interface that fits your existing plant network.
| Interface | Name / Description | Specification | On-Board |
|---|---|---|---|
| RJ45 | Ethernet (TCP/IP)Direct LAN integration with MES / WMS / ERP. | 10/100 Mbps · PoE-Ready | ✓ |
| RS-485 | Industrial BusMulti-drop bus · MODBUS RTU for PLC networks. | MODBUS RTU · 9600~115200 bps | ✓ |
| RS-232 | Serial PortLegacy-friendly point-to-point link. | AT CMD · 9600~115200 bps | ✓ |
| CAN | CAN Bus · Controller Area NetworkIn-vehicle / AGV / production-line control bus, noise-resistant, differential signaling. | CAN 2.0 A/B · ≤ 1 Mbps | ✓ |
| BLE 5.1 | Bluetooth LEWireless pairing for handheld/mobile apps. | Bluetooth LE · ≤10 m | ✓ |
| OPTO-IN | External Trigger · Opto-Isolated InputHardware trigger from sensors/PLC. | DC 5 ~ 30 V · isolated | ✓ |
Modbus, CANopen, J1939, OBD-II, ISO-TP/UDS, NMEA 2000 — every protocol the automotive industry needs, rarely found in one device. No SDK, no licence, no extra MCU.
Modbus TCP (RJ45) ↔ MCU ↔ Modbus RTU (RS-485). After reading RFID, send simultaneously to MES (TCP) and PLC (RTU).
J1939 / CANopen (CAN) ↔ MCU ↔ MQTT (RJ45). In-vehicle ECU data + RFID identification, cloud-centralized monitoring.
Modbus RTU ↔ CANopen bidirectional forwarding. No additional gateway required — the PLUS2 itself is the protocol bridge.
Three independent stacks in parallel — RFID events pushed simultaneously to ERP (Web) + line PLC (485) + vehicle controller (CAN).
Zero install. No driver. No vendor SDK. Just point your browser at the device — full management runs entirely on-board.
Live LED status (PWR / ETH / WiFi / BLE / RFID / RS-485 / CAN / TRIG), IP, chip temperature, ADC current, free memory, uptime.
TX power 18–30 dBm slider, Session S0–S3, Q value 0–7 (with auto-growth), regions NCC/FCC/ETSI/JP/KR/CHN2, scan interval 300–1000 ms, power-on auto-scan.
Live display of EPC, RSSI (with signal grade Excellent/Good/Fair/Weak), read count, last seen timestamp. One-click clear.
WiFi modes (off / AP / STA / AP+STA / WiFi Mesh / BLE Mesh), wired DHCP/static IP, HTTP port, tag cloud upload (UDP/TCP/HTTP/MQTT/WebSocket).
RS-485 ↔ CAN Bus toggle (shared 4-pin terminal), independent baudrates, protocols (17 total), filter settings. CAN has built-in oscilloscope and terminal log (500 ms auto-refresh).
GPIO36 EL817 opto-isolated input. Mode A: trigger RFID read; Mode B: pure counter. Debounce adjustable 10–500 ms. Live signal status display with accumulated count.
Change password, OTA firmware upload (.bin drag-and-drop), system reboot, factory reset, live system log. 1-hour idle auto-lock (admin can unlock).
Per-tag real-time push or batched interval upload — to LAN, REST API, MQTT broker, or WebSocket server. Bearer token & MQTT auth supported.
Connectionless broadcast / point-to-point, lowest latency; ideal for real-time factory LAN uplink.
PROTOCOL / 01Connection-oriented with retransmission, works across subnets and NAT — suited for VPN cloud transmission.
PROTOCOL / 02POST to custom URL path with optional Bearer Token; integrates directly with Node.js / Python / .NET REST APIs.
PROTOCOL / 03Supports broker host, topic, Client ID, user/pass — works with AWS IoT, Azure, Mosquitto.
PROTOCOL / 04Persistent bidirectional channel; cloud can push commands and receive tag events instantly.
PROTOCOL / 05No industrial RFID reader on the market combines WiFi Mesh and BLE Mesh in one device. We are the only one.
SELF-FORMING WIFI MESH
Dozens of PLUS2 units self-organize into a tree without an AP/router; the Root uplinks to the server via RJ45.One uplink cable covers the whole site。Auto re-election if Root drops.
BLUETOOTH LE MESH 1.0
Compliant with Bluetooth SIG Mesh 1.0; Tag messages flood across devices via publish/subscribe. Ideal for battery-powered nodes paired with mains-powered relays for extended coverage.
One PLUS2 acts as STA externally (connecting to corporate/plant WiFi for cloud uplink) and AP internally (phones/laptops connect directly for config) — simultaneously, no switching, no reboot. Field engineers scan SSID, connect, configure, view logs instantly; no Ethernet drop, no USB-to-serial dongle.
Multiple PCB customers in production. PLUS2 mounted on stamping / molding machines reading the mold's RFID tag — automatic, zero operator input, full traceability.
| Machine | Mold | Total Strokes | Batch Qty | Status |
|---|---|---|---|---|
| A | M-1042 | 847,213 | 2,184 | ● Good |
| B | M-2087 | 1,203,499 | 5,612 | ● Near End-of-Life |
| C | M-1042 | 847,213 | 120 | ● Just Installed |
Molds frequently change machines, shifts, and sites. Paper logs rarely match. PLUS2 reads automatically — no operator intervention required.
Real-time per-stroke counting with automatic alerts at lifespan thresholds — prevents scrap, mold fractures, and downtime.
Each PCB produced is automatically attributed across machine + mold + shift — no manual work-order entries.
When complaints arise, batch number reveals exact mold, machine, and stroke — shortens 8D reporting time.
Fast inventory counting, stock lookup, inbound/outbound records.
Real-time monitoring, data collection, quality traceability.
Landmark identification, vibration trigger, power-saving mode.
Real-time material reading, automatic counting.
Fixed assets, toolboxes, instrument inventory.
Instrument tracking, drug distribution, safety management.
Collection audit, check-in/out records, live lookup.
Fast checkout, in-store inventory, anti-theft security.
Utensil washing tracking, automatic counting.
Employee entry/exit, vehicle access, parking identification.
Fixture / tool identification, automated job dispatch.
Luggage / parcels, node-by-node scan.
Official product photography from RF Net · five views of the WS-RFIDBY-PLUS2 enclosure.