KBN-401 Intelligent IoT Telemetry Gateway
The KBN-401 is a quad-band intelligent GPRS / 4G cellular IoT gateway engineered specifically for industrial remote monitoring, environmental compliance, and plant automation. It possesses the capability to integrate seamlessly with virtually every industrial sensor brand globally via RS485 Modbus RTU, 4-20mA, or pulse inputs.
Equipped with an onboard microcontroller, internal non-volatile memory buffer, and fail-safe Li-ion battery backup, the KBN-401 periodically polls connected electromagnetic flow meters and piezometers, logging data locally and synchronizing seamlessly with CGWA / SPCB / CPCB cloud servers without data loss.
Technical Specifications & Parameters
| Parameter | Technical Specification Value |
|---|---|
| Model Designation | KBN-401 Quad-Band Intelligent GPRS / 4G IoT Gateway |
| Cellular Communication Bands | LTE-FDD B1/B3/B5/B8, LTE-TDD B34/B38/B39/B40/B41 & Quad-Band GSM 850/900/1800/1900 MHz |
| Serial Interface | 1x Isolated RS485 port, Modbus RTU Master protocol (Baud rate: 1200 to 115200 bps) |
| Analog & Digital Inputs | 2x 4-20mA DC / 0-10V Analog inputs + 2x Digital / Pulse totalizer inputs |
| Transmission Interval | User-programmable from 1 minute to 24 hours (Standard CGWA setting: hourly upload) |
| Cloud Protocols Supported | HTTP, HTTPS, REST API, MQTT, JSON payload format (Direct CGWA server push) |
| Internal Data Buffer | 100,000+ records on non-volatile flash memory (FIFO auto-flush upon reconnection) |
| Power Supply | 9 - 36V DC external / 230V AC adapter with built-in surge & reverse polarity protection |
| Internal Battery Backup | Rechargeable Li-ion 3.7V / 2600 mAh battery providing up to 72 hours emergency backup |
| Antenna Hardware | External high-gain 3dBi magnetic mount antenna with 3-meter RG174 low-loss RF cable |
| Operating Temperature | -20°C to +70°C | Relative Humidity: 5% to 95% non-condensing |
| Enclosure Rating | IP65 Polycarbonate / ABS industrial weatherproof enclosure with transparent hinged lid |
Zero Data Loss Guarantee
During mobile network outages, data logs securely store in internal flash memory and auto-upload upon cellular reconnection.
Universal Sensor Interfacing
Pairs with electromagnetic flow meters, water meters, piezometers, and pH/TDS transmitters through RS485 Modbus.
Statutory CGWA Ready
Pre-configured API payloads ensure seamless integration with Central Ground Water Authority portal verification.
Need Telemetry Cloud Sync for an Existing Flow Meter?
We can retrofit the KBN-401 IoT Gateway to your existing RS485 electromagnetic flow meters or piezometers and configure live cloud reporting within 48 hours.