IoT Pro
Temperature & Humidity Module
Industrial-grade, retrofit temperature and relative humidity monitoring module for environmental and storage assets, designed for long-term operation in warehouses, and regulated environments, and built on the IoT Pro hardware architecture.
Product Code: IOTPRO-TEMPERATURE-HUMIDITY-MODULE
Product Overview
The IoT Pro Temperature & Humidity Module is a multi-channel environmental monitoring device designed to measure temperature and relative humidity using integrated digital sensors and convert these physical parameters into structured, reliable data for software platforms.
The module is intended for retrofit installation within storage and environmental monitoring scenarios such as warehouses, and enclosed spaces, without modification or replacement of existing infrastructure.
From a system architecture perspective, the device functions as a dedicated environmental data acquisition node at the edge, providing deterministic behaviour, long-term stability, and predictable data structures suitable for continuous monitoring, compliance validation, and system integration.
The module does not replace HVAC systems, controllers, or building management systems. Its role is to provide independent, verifiable temperature and humidity measurements for monitoring, compliance, and operational analysis which data can be used to enrich BMS systems.
Typical Installation Points
The IoT Pro Temperature & Humidity Module is typically deployed in environmental monitoring locations where both temperature and relative humidity are operationally critical. These installations commonly require unattended operation, long-term data integrity, and audit-ready environmental records.
Measurement & Sensing Capabilities
The IoT Pro Temperature & Humidity Module is designed to provide stable, repeatable environmental measurements with predictable behaviour over long deployment lifecycles.
Temperature & Humidity Measurement Interface
The module uses external digital SHT31 temperature and relative humidity sensors, providing calibrated environmental measurements suitable for industrial and regulated environments.
The integrated sensing approach makes the module well suited for ambient environmental monitoring across larger spaces, where distributed probe placement is not required.
Warehouses & Distribution Centres
Bulk Storage / Pallet Racking / Logistics Hubs
Pharmaceutical & Medical Storage Facilities
Vaccine Storage / Clean Rooms / Temperature-Controlled Drug Storage
Food Storage & Processing Environments
Cold Storage / Dry Goods Storage / Food Processing Plants
Archival Rooms & Controlled Storage Spaces
Document Archives / Museum Storage / Record Rooms
Humidity-Sensitive Product Storage Environments
Sterile Medical Supplies / Historical Documents / PCB Manufacturing
Sensor Type | Digital Temperature & Humidity Sensor (SHT31) |
Temperature Measurement Range | –40 °C to +125 °C |
Temperature Accuracy | ±0.2°C between 0°C to +90°C |
Humidity Measurement Range | 0 to 100 %RH |
Humidity Accuracy | ±2 %RH between 0% RH to 100% RH @ 25°C |
Measurement Interface | I2C |
Supported Cable Lengths | 1 m |
Temperature & Humidity Sensor Specifications (SHT31)
Temperature & Humidity Sensor Specifications (SHT31)
Sensor Type | Digital Temperature & Humidity Sensor (SHT31) |
Temperature Measurement Range | –40 °C to +125 °C |
Temperature Accuracy | ±0.2°C between 0°C to +90°C |
Humidity Measurement Range | 0 to 100 %RH |
Humidity Accuracy | ±2 %RH between 0% RH to 100% RH @ 25°C |
Measurement Interface | I2C |
Supported Cable Lengths | 1 m |
Temperature & Humidity Sensor Specifications (SHT31)
Sensor Type | Digital Temperature & Humidity Sensor (SHT31) |
Temperature Measurement Range | –40 °C to +125 °C |
Temperature Accuracy | ±0.2°C between 0°C to +90°C |
Humidity Measurement Range | 0 to 100 %RH |
Humidity Accuracy | ±2 %RH between 0% RH to 100% RH @ 25°C |
Measurement Interface | I2C |
Supported Cable Lengths | 1 m |
Channel Architecture
The IoT Pro – Temperature & Humidity Module is implemented as a multi-channel environmental sensing hardware, allowing multiple sensing points to be monitored from a single device where required.
Standard Configuration
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1 × SHT31 sensing channel as standard
Additional I/O Interfaces
In addition to temperature sensing, the hardware platform is pre-engineered to support additional sensing and control interfaces for combined or future-use deployments.
Digital Inputs
4 x Digital Inputs
Dry Contact Inputs
Pulse Inputs
Temperature Probes (DS18B20)
Designed to monitor contact-based signals and discrete events, including door status, switches, tamper contacts, equipment indicators, extra temperature channels, and pulse outputs from meters or sensors.
Analog Input
1 x 0-30 V Voltage Input
1 × 4–20 mA Analog Input
For monitoring power sources, batteries, and industrial sensors such as pressure, level, flow, or gas transmitters.
Digital Output
2 x Digital Open-Drain Output
500 mA Continuous Current
Up to 1 A Pulse Capability
These outputs may be used for relay driving, signalling, or interfacing with external equipment where local actuation or indication is required.
IoT Pro Hardware Architecture
The IoT Pro Temperature Module is built on the IoT Pro Hardware Architecture, a modular industrial hardware architecture shared across all IoT Pro devices.
This platform defines common characteristics such as power behaviour, enclosure design, environmental protection, security principles, lifecycle management, and long-term hardware availability.
Power-Intelligent, Long-Life Operation
Supports multi-year battery-powered operation for continuous environmental monitoring. Where external power is available, the device may operate from a DC supply while maintaining battery backup to reduce maintenance requirements and also provide added value to monitor the external supply.
Multi-Network Architecture
Supports LoRaWAN, NB-IoT, LTE Cat-1, and Wi-Fi using a single integration model, allowing deployment in warehouses, basements, and industrial buildings where cellular coverage may be limited and local network infrastructure is available.
Antenna & Mechanical Configuration Flexibility
Supplied with an internal antenna for robustness in typical indoor installations, with support for external SMA antenna configurations where radio conditions require optimisation.
Field-Ready Retrofit Design
Designed for non-intrusive installation within existing buildings and storage environments, without downtime, interference with operational systems, or the need to pass new wiring if the battery power is chosen as a product configuration.
System Integration Context
The IoT Pro Temperature & Humidity Module is designed to integrate as a component within temperature and environmental monitoring solutions, particularly for warehousing, storage, and controlled environments..
Refer to link Temperature & Environmental Monitoring
Technical Documentation
All documentation is written for software integrators, system engineers, and deployment teams and aligns with the IoT Pro platform architecture.