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Home › Products › PRO Series › WT400M
PRO Series
Robust cellular connectivity for remote and industrial environments where wired LAN or Wi-Fi is unavailable — with dual-server delivery and inbuilt data logging.
DUAL SERVER|STORE & FORWARD|edge|LOCAL CONSOLE
17,500
Logs per Server(Dual Server Mode)
64
Max Slaves(RS485 Modbus)
3,000
Registers(Dynamic Read)
-30°C to +85°C
Wide Temp. Operation
12 – 24V DC
Wide Voltage Input
DIN / Wall Mount
Flexible Installation
Same hardware — DIN clip or wall-flange enclosure.
Terminal maps are included in the catalogue.
Configuration software, device manuals, user guides, chat support, order tracking and more. Login to Client Portal for secure access.
Login to Client PortalRugged & Reliable
Industrial Grade
OEM Ready
Long Term Support
GSM / LTE Band Support
| Network Type | Region | Bands |
|---|---|---|
| LTE FDD (4G) | Asia | B1 / B3 / B5 / B8 |
| LTE FDD (4G) | Europe | B1 / B3 / B5 / B7 / B8 / B20 / B28 |
| LTE TDD (4G) | Asia | B34 / B38 / B39 / B40 / B41 |
| LTE TDD (4G) | Europe | B38 / B40 / B41 |
| GSM (2G) | Asia | B3 / B8 |
| GSM (2G) | Europe | B2 / B3 / B5 / B8 |
Specifications
| Serial | |
|---|---|
| Interface | RS232 / RS485 |
| Baud Rates | 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps |
| Data Bits | 8 bits |
| Parity | None / Even / Odd |
General Specifications
| Terminals | 12, pluggable (2 Power / 2 Modbus / 8 IO) |
| DIN Rail (L×W×H) | 113.65 × 99 × 22.6 mm |
| Wall Mount (L×W×H) | 100 × 85 × 24 mm |
| Weight | 130 g |
| Operating Voltage | 12–24 V DC |
| Temperature | -30 °C to +85 °C |
General Communication
| TX Protocol | TCP / HTTP / MQTT – TLS on the primary server link |
| HTTP Methods | Configurable GET / POST |
| Format | Configurable JSON / CSV |
| Device Config | SMS / PC Utility / Server IP Commands |
| RS485 Modes | Transparent / Modbus Polling |
| OTA Updates | Over the air, no site visit |
| SIM | Internal SIM (1.8V / 3V) |
All dimensions are in mm.
Pin Configuration
| DIN | FM | Section | Label | Type | Purpose |
|---|---|---|---|---|---|
| 1 | 1 | Power | +12V | Input | DC Power +12V to +24V |
| 2 | 2 | Power | GND | Input | Power Ground |
| 3 | 3 | COM | D+/Rx | Comm | RS-485 D+ / RS-232 Rx |
| 4 | 4 | COM | D−/Tx | Comm | RS-485 D− / RS-232 Tx |
| 5 | 8 | 4–20 mA | AI- | Analog | Current Input – (both channels) |
| 6 | 7 | 4–20 mA | CH1 | Analog | Current Input CH1 + (AI+) |
| 7 | 6 | 4–20 mA | CH2 | Analog | Current Input CH2 + |
| 8 | 5 | ADI | ADI-1 | Analog/Digital | Configurable Input |
| 9 | 11 | Relay | NO | Output | Normally Open Contact |
| 10 | 12 | Relay | COM | Output | Relay Common |
| 11 | 9 | DI | DI3 | Digital / Pulse | Digital Input |
| 12 | 10 | DI | DI4 | Digital / Pulse | Digital Input |
Interfaces
Power Supply
12–24 V DC (Reverse Polarity Protection)
Analog / Dig. In
1× (0–24 V) Analog/Digital Voltage Input
Digital Input
2× (0–24 V) Pure Digital Input
Current Input
2× (4–20 mA) Current Input (CH1, CH2)
Relay Output
1× Relay Output
RS485 Port
Multiple Modbus Slave Device Connection
USB Port
Type-C – PC Utility Configuration
LED Indicators
Power / GSM / Modbus Status
Antenna
External GSM Antenna (SMA)
Need a customized version?
OEM branding, hardware & firmware customization to match your application requirements. Talk to us →
OEM / White-Label Ready
Your brand. Our technology.
Quality Assured
Every unit tested before it ships.
Designed & Built in India
Engineering excellence with global standards.
