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In-House Hardware

Sensors, Gateways & Controllers

A growing range of industrial-grade sensors, gateways and controllers — engineered and built in-house by IoTelliGen Limited. Compatible with almost any modern sensor and every major protocol, from RS485 Modbus RTU to 4-20mA.

The Core

IoTelliGen Developed Gateway

The central processing unit at the heart of every monitoring system — handling multiple digital sensor inputs simultaneously.

IOT-2501Mini gateway
IOT-2501Mini

Central Processing Unit

Handles multiple digital sensor inputs simultaneously, aggregating field data and forwarding it securely to the cloud. Built for harsh, real-world industrial environments.

Power Supply
Dual 220V AC / 12V DC
Power Backup
Industrial-grade UPS
Inputs
4-20mA & RS485 Modbus RTU
Integration
PLC / DCS Ready
Housing
IP54 Weather-Resistant
Mounting
Wall or Panel
Sensor Range

Industrial Digital Sensors

Rugged SS316L sensors with RS485 Modbus RTU & 4-20mA outputs — built for water treatment and process control.

Digital pH Sensor

ITG-PHK-402

High-performance digital pH sensor for industrial water treatment and process control, with a stainless-steel body for harsh environments.

Measuring Range0.00 – 14.00 pH
Resolution0.01 pH
Accuracy± 0.02 pH
Signal OutputRS485 Modbus RTU & 4-20mA
Working Temp.0 – 65 °C
Working Pressure0 – 2 Bar
Body MaterialSS316L Stainless Steel
Installation3/4" NPT Thread
Cable Length5m (Standard)

Digital TDS Sensor

ITG-TDS-402

Industrial conductivity & TDS sensor for high-stability monitoring in pure water and wastewater. 4-electrode principle prevents polarization for long-term accuracy.

Measuring Range0 – 5000 mg/L
Resolution1 mg/L
Accuracy± 2% FS
Signal OutputRS485 Modbus RTU & 4-20mA
Working Temp.0 – 65 °C
Working Pressure0 – 6 Bar
Body MaterialSS316L Stainless Steel
Installation3/4" NPT Thread
Cable Length5m (Standard)

Digital Colour Sensor

ITG-COL-206

Uses the visible light absorption method to monitor water clarity and chromaticity in real time — ideal for environmental and industrial process control.

Measuring Range0 – 2000 Hazen / 0 – 400 NTU
Resolution1 mg/L
Accuracy± 5% FS, 1 Hazen, 0.1 NTU
Signal OutputRS485 Modbus RTU & 4-20mA
Working Temp.0 – 45 °C
Working PrincipleOptical Method
Body MaterialSS316L Stainless Steel
ProtectionIP68
Cable Length5m (Standard)

Water Hardness Sensor

ITG-HARD-406

Monitors calcium and magnesium ion concentrations using an ion-selective electrode (ISE) method for direct, real-time measurement.

Measuring Range0 – 1000 mg/L
Resolution0.1 mg/L
Accuracy± 10% FS, ± 0.3 °C
Signal OutputRS485 Modbus RTU & 4-20mA
Working Temp.0 – 40 °C
Working PrincipleISE / PVC Membrane
Body MaterialSS316L Stainless Steel
ProtectionIP68
Cable Length5m (Standard)
Additional parameters available on request: BOD, COD, Dissolved Oxygen, Ammonia (NH₄-N), Nitrate / Nitrite, Total Phosphorus, Total Nitrogen, Salinity, Oil-in-Water, ORP, Turbidity and Temperature. Sensor suites are configured per site to match your process and compliance needs.
Our Hardware Range

Gateways, Nodes & Enclosures

A growing range of sensors, gateways and controllers we design and deploy across different project environments.

Rugged wireless controller gateway deployed at plant

Rugged Wireless Controller Gateway

Weather-proof field gateway with dual antennas for long-range, reliable site connectivity.

Compact sensor node with antenna

Compact Sensor Node

In-house 3D-printed monitoring node with customized buttons and wireless transmission.

Multi-sensor housings

Multi-Sensor Housings

Custom enclosures for gas, smoke and environmental sensing units across deployments.

Get In Touch

Need Hardware for Your Project?

Tell us about your site and parameters — we'll recommend the right sensors, gateway and enclosure.

Call +880 1330 818249 info@iotelligen.com