Typical Installation Points
The IoT Pro Generator Module is typically installed on existing standby and prime generators, across any brand, model, controller type, and year of manufacture, as a non-intrusive retrofit. The module is compatible with these brands, among others, across commercial and industrial gensets.
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Measurement & Sensing Capabilities
The IoT Pro Generator Module focuses on capturing the minimum critical signals required to confirm generator readiness and operation, with deterministic behaviour suitable for alarms, compliance logs, and integration into third-party platforms.
Additional I/O Interfaces
In addition to the generator-specific sensing bundle, the hardware platform retains auxiliary I/O for expanded monitoring or site-specific requirements.
Digital Inputs
2 x Digital Inputs
Dry Contact Inputs
Pulse Inputs
Temperature Probes (DS18B20)
For auxiliary signals like E-stop status, controller alarms, door status, leak detection, or extra pulse/count inputs.
Digital Output
2 x Digital Open-Drain Output
500 mA Continuous Current
Up to 1 A Pulse Capability
Suitable for driving external relays, alarm beacons, sirens, or signalling interfaces where local actuation is required, including remotely controlling the generator.
Fuel Monitoring
Temperature Monitoring
Battery Health Monitoring
Interface Referance
Fuel Monitoring
Temperature
Monitoring
Battery Health Monitoring
Interface Reference
Fuel Monitoring
Battery Health Monitoring
Temperature Monitoring
Interface Reference
Temperature Sensor Specifications (DS18B20)
Sensor Type | Digital Temperature Sensor (DS18B20) |
Operating Temperature Range | –55 °C to +125 °C |
Accuracy (–10 °C to +85 °C) | ±0.5 °C |
Accuracy (–30 °C to +100 °C) | ±1 °C |
Accuracy (–55 °C to +125 °C) | ±2 °C |
Measurement Interface | Digital 1-Wire |
Supported Cable Lengths | 5 m |
A DS18B20 temperature probe is used to monitor engine enclosure or relevant thermal points (as defined per installation), supporting over-temperature events and operational trend analysis.
Fuel Level Monitoring (Capacitive Probe)
Measurement Principle | Capacitance-based level sensing |
Probe Length Range | 120–1500 mm (field trimmable) |
Resolution | 1 mm |
Operating Temperature | –40 °C to +85 °C |
Protection Rating | IP65 |
Media Compatibility | Diesel, gasoline, kerosene (non-conductive liquids) |
A capacitive fuel level probe provides continuous and stable diesel level measurement even during operation, enabling low-fuel alerts, refuelling detection, and abnormal consumption identification.
Relay / Interface Reference (Phoenix Contact 2961451)
Relay Type | Plug-in miniature relay |
Contacts | 2 changeover contacts (DPDT / 2 Form C) |
Nominal Coil Voltage | 230 V AC |
The system monitors both external (mains) availability and generator output presence, providing the event signals required for immediate power loss/recovery alerts and start confirmation.
A relay/interface stage is used as part of the AC-to-status detection hardware set.
DC Power & Protection
DC Supply Range | 10–30 V DC |
Protection | 100 V DC overvoltage protection, reverse polarity protection |
Internal Fuse | 1.5 A |
The module is designed to be powered from, and monitor, the generator’s DC electrical system—allowing continuous visibility of battery voltage behaviour and charging characteristics.
Temperature Sensor Specifications (DS18B20)
Sensor Type | Digital Temperature Sensor (DS18B20) |
Operating Temperature Range | –55 °C to +125 °C |
Accuracy (–10 °C to +85 °C) | ±0.5 °C |
Accuracy (–30 °C to +100 °C) | ±1 °C |
Accuracy (–55 °C to +125 °C) | ±2 °C |
Measurement Interface | Digital 1-Wire |
Supported Cable Lengths | 5 m |
A DS18B20 temperature probe is used to monitor engine enclosure or relevant thermal points (as defined per installation), supporting over-temperature events and operational trend analysis.
Capacitive Fuel Level Sensor Specifications
A capacitive fuel level probe provides continuous and stable diesel level measurement even during operation, enabling low-fuel alerts, refuelling detection, and abnormal consumption identification.
Measurement Principle | Capacitance-based level sensing |
Probe Length Range | 120–1500 mm (field trimmable) |
Resolution | 1 mm |
Operating Temperature | –40 °C to +85 °C |
Protection Rating | IP65 |
Media Compatibility | Diesel, gasoline, kerosene (non-conductive liquids) |
Relay / Interface Reference (Phoenix Contact 2961451)
Relay Type | Plug-in miniature relay |
Contacts | 2 changeover contacts (DPDT / 2 Form C) |
Nominal Coil Voltage | 230 V AC |
The system monitors both external (mains) availability and generator output presence, providing the event signals required for immediate power loss/recovery alerts and start confirmation.
A relay/interface stage is used as part of the AC-to-status detection hardware set.
DC Power & Protection
DC Supply Range | 10–30 V DC |
Protection | 100 V DC overvoltage protection, reverse polarity protection |
Internal Fuse | 1.5 A |
The module is designed to be powered from, and monitor, the generator’s DC electrical system—allowing continuous visibility of battery voltage behaviour and charging characteristics.
Temperature Sensor Specifications (DS18B20)
Sensor Type | Digital Temperature Sensor (DS18B20) |
Operating Temperature Range | –55 °C to +125 °C |
Accuracy (–10 °C to +85 °C) | ±0.5 °C |
Accuracy (–30 °C to +100 °C) | ±1 °C |
Accuracy (–55 °C to +125 °C) | ±2 °C |
Measurement Interface | Digital 1-Wire |
Supported Cable Lengths | 5 m |
A DS18B20 temperature probe is used to monitor engine enclosure or relevant thermal points (as defined per installation), supporting over-temperature events and operational trend analysis.
Capacitive Fuel Level Sensor Specifications
Measurement Principle | Capacitance-based level sensing |
Probe Length Range | 120–1500 mm (field trimmable) |
Resolution | 1 mm |
Operating Temperature | –40 °C to +85 °C |
Protection Rating | IP65 |
Media Compatibility | Diesel, gasoline, kerosene (non-conductive liquids) |
A capacitive fuel level probe provides continuous and stable diesel level measurement even during operation, enabling low-fuel alerts, refuelling detection, and abnormal consumption identification.
Relay / Interface Reference (Phoenix Contact 2961451)
Relay Type | Plug-in miniature relay |
Contacts | 2 changeover contacts (DPDT / 2 Form C) |
Nominal Coil Voltage | 230 V AC |
The system monitors both external (mains) availability and generator output presence, providing the event signals required for immediate power loss/recovery alerts and start confirmation.
A relay/interface stage is used as part of the AC-to-status detection hardware set.
DC Power & Protection
DC Supply Range | 10–30 V DC |
Protection | 100 V DC overvoltage protection, reverse polarity protection |
Internal Fuse | 1.5 A |
The module is designed to be powered from, and monitor, the generator’s DC electrical system—allowing continuous visibility of battery voltage behaviour and charging characteristics.
IoT Pro Hardware Architecture
Power Architecture & Energy Options
Operates from generator DC supply where available, while supporting battery-backed operation for continuity during outages and maintenance windows ensuring events are still captured and reported reliably.
Flexible Connectivity, One Integration Model
Supports LoRaWAN, NB-IoT, LTE Cat-1, and Wi-Fi under the same integration model, useful for generators installed in basements, plant rooms, remote sites, and customer-managed networks.
Antenna & Mechanical Configuration Flexibility
Internal antenna suits many generator rooms, while external SMA / remote antenna configurations support deep indoor panels and RF-challenging sites.
Remote Configuration & Lifecycle Control
Supports remote parameterisation and controlled firmware evolution, maintaining predictable behaviour across long deployments and large fleets.
System Integration Context
The IoT Pro Generator Module is designed to integrate as a core monitoring component within IoT Pro generator management solutions, enabling real-time power event detection, readiness verification, and multi-site fleet visibility.
Refer to Industrial Generator Management.
Technical Documentation
All documentation is written for software integrators, system engineers, and deployment teams and aligns with the IoT Pro platform architecture.
Product Overview
The IoT Pro Generator Module is a retrofit generator monitoring device engineered to provide independent, verifiable visibility of generator readiness and real operating behaviour without replacing controllers, modifying internal generator logic, or affecting warranty.
It is implemented as an application-specific configuration of the IoT Pro Industrial I/O Module, supplied with the required generator accessories (fuel level sensor, temperature probe, and AC status interfaces) and a wiring approach optimised for generator environments.
From a system architecture perspective, the module functions as a generator condition acquisition node that captures the critical signals needed to confirm:
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Fuel level and refuelling behaviour
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Battery voltage and charging behaviour
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Mains power failure and restoration
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Runtime, start/stop events, and test-run verification
This makes it suitable for software integrators who need stable, structured generator telemetry that remains consistent across mixed sites and heterogeneous generator fleets.