
Temperature & Humidity Sensor for iSensor & iAccess Controllers
Monitor Data Centre Temperature & Humidity
The iSensor Temperature and Humidity sensor integrates seamlessly with both the iSensor and iAccess Controllers.
Using standard CAT5/6 Ethernet cabling, the sensor connects directly to an available sensor port, enabling proactive and continuous environmental monitoring within data centres and server rooms.
Learn why monitoring Temperature and Humidity is so vital by reading our article Temperature vs Humidity Monitoring: Understanding Critical Environmental Metrics.
Product Overview
High-Precision Temperature & Humidity Monitoring for Data Centres
This sensor provides real-time temperature and humidity monitoring for crucial data centre spaces. It works directly with Advanced Datacentre Systems’ iSensor and iAccess controllers.
It instantly tracks temperature and humidity. This provides accurate, real-time data essential for critical management of server room environments.
Connect the sensors using standard CAT5/6 Ethernet cable. This simple connection allows flexible placement up to 500 meters away. You can deploy it easily throughout racks or across any room, thanks to a built-in magnet.
The sensor delivers proactive environmental data. It forms the foundation of a reliable DCIM (Data Centre Infrastructure Management) or BMS (Building Management System) strategy.
Why Monitor Temperature and Humidity?
Monitoring a data centre’s temperature and humidity is critical for reliability and cost management.
- Prevent Equipment Failure: High temperatures cause overheating, leading to component failure and system downtime.
- Maintain Performance: Optimal temperatures ensure servers run efficiently, preventing throttling and maintaining performance.
- Avoid Condensation (High Humidity): Excessive moisture can lead to condensation inside equipment, causing short circuits and corrosion.
- Prevent Static Electricity (Low Humidity): Very dry air increases the risk of electrostatic discharge (ESD), which can damage sensitive electronic components.
- Save Energy: Precise monitoring allows you to adjust cooling systems accurately, reducing energy waste and cutting operational costs.
- Validate Compliance: Tracking environmental conditions helps meet regulatory and warranty requirements for IT hardware.
iSensor Temperature/Humidity Sensor Key Advantages
The use of sensors to monitor data centre temperature and humidity is important. iSensor Temperature/Humidity sensor provides:
- Proactive Monitoring: Track both temperature and humidity continuously to detect early signs of overheating, moisture build-up, or environmental changes.
- Long Reach Cabling: Thanks to the 500m maximum cable length, you can deploy the sensor far from controllers, reducing the need for complex wiring or repeaters.
- Flexible Mounting: Each sensor has an internal magnet, making it easy to attach to rack infrastructure without additional brackets or fixtures.
- Seamless Controller Compatibility: Works out-of-the-box with both iSensor and iAccess controllers, so you don’t need separate sensor types.
- Integration Friendly: Readings can be accessed via the controller’s internal web server or integrated into SNMP-based NMS / BMS / DCIM systems.
How to Install & Integrate
These sensors are easy to install and integrate:
- Connection: Plug into any free sensor port on an iSensor or iAccess controller using standard CAT5/6 Ethernet cable.
- Cable Considerations: The sensor supports a maximum cable length of up to 500 meters, giving you flexibility to position it where it is most effective.
- Mounting: Use the built-in magnet to affix the sensor to rack frames or other steel infrastructure without additional hardware.
- Monitoring: Once connected, the controller handles data sampling and makes readings available via its internal web server or via SNMP for integration into third-party systems.
- Alarm Configuration: You can set high/low thresholds on the iSensor or iAccess controller for both temperature and humidity, enabling email/SNMP-based alerts when environmental conditions move outside acceptable ranges.
Reliability & Maintenance Guidelines
- Long-Term Stability: The sensor’s humidity reading stability is rated at 0.5% RH per year, meaning you can expect stable performance over long periods.
- Calibration: Depending on your compliance or SLA requirements, periodic calibration may be necessary — check your internal procedures or contact us for support.
- Physical Checks: Because it’s mounted via a magnet, it is easy to remove, inspect, clean, or reposition during maintenance windows.
- Redundancy: For highly critical environments, consider deploying multiple sensors in the same zone to provide backup readings and cross-verification.
Typical Applications
Below are some typical applications that benefit from using temperature and humidity sensors:
- Data Centre Racks: Monitor hot spots and “micro-climates” in specific rack locations to prevent thermal issues.
- Server Rooms: Use multiple sensors across the room to track humidity gradients and temperature uniformity.
- Remote or Large Facilities: Because of the long cable reach, you can consolidate multiple sensors across a large site without excessive wiring cost.
- BMS / DCIM Integration: Send environmental data into a Building Management System or Data Centre Infrastructure Management platform using SNMP, enabling trending, alerting, and capacity planning.
- Redundant Monitoring: Use alongside other environmental sensors (e.g., particle or VFC sensors) to build a layered, resilient monitoring strategy.
Features & Benefits
- Monitor both Temperature and Humidity.
- Maximum sensor cable length is 500 meters.
- Each sensor comes with an internal magnet for easy mounting to the rack infrastructure.
- For further details on the iSensor and iAccess Controllers, please refer to the relevant data sheets.
Specification
Temperature
- Range: 0 to +123.8ºC (32 to +254.9°F)
- Response time: 5 to 30 seconds
- Accuracy: ±0.4 °C nominal
- Repeatability: ± 0.1 °C
- Resolution: 0.01 °C
Humidity
- Range: 0 to 100% Relative Humidity
- Response time: 8 Seconds in slow moving air @ 25 °C
- Stability: 0.5% RH per year
- Accuracy: ± 3.0% RH, 0-100% RH @ 25ºC
- Non-linearity: < 1% RH Typical
- Repeatability: ± 0.1% RH
- Resolution: 0.05 %RH
Frequently Asked Questions (FAQs)
What does the iSensor Temperature & Humidity Sensor monitor?
The iSensor Temperature & Humidity Sensor continuously monitors environmental temperature and relative humidity within data centres, server rooms, and IT environments. This helps ensure operating conditions remain within safe thresholds to protect critical equipment.
Why is temperature and humidity monitoring important in a data centre?
Environmental monitoring helps prevent:
- Equipment overheating and unexpected downtime
- Condensation caused by excessive humidity
- Electrostatic discharge from low humidity levels
- Reduced server performance due to thermal stress
- Excess energy consumption from inefficient cooling
Maintaining optimal environmental conditions improves reliability, performance, and operational efficiency.
Which controllers is the sensor compatible with?
The sensor integrates directly with both iSensor and iAccess Controllers, enabling seamless deployment without additional interfaces or converters.
How is the sensor connected?
The sensor connects using standard CAT5 or CAT6 Ethernet cabling to an available sensor port on the controller. This allows simple installation using existing structured cabling infrastructure.
How far can the sensor be installed from the controller?
The sensor supports cable runs of up to 500 metres, allowing flexible placement across racks, rooms, or large facilities without requiring repeaters.
Is the sensor easy to install?
Yes. Installation is straightforward:
- Connect the sensor via CAT5/6 cable
- Attach it to rack infrastructure using the built-in magnet
- Configure monitoring and alarm thresholds via the controller
No specialist mounting hardware is required.
Can alerts be configured for temperature or humidity changes?
Yes. High and low environmental thresholds can be configured through the controller, enabling automatic alerts via email or SNMP when conditions fall outside acceptable limits.
Can the sensor integrate with DCIM or BMS platforms?
Yes. Environmental readings can be accessed through the controller’s internal web interface or integrated into third-party DCIM, NMS, or Building Management Systems using SNMP.
Where should temperature and humidity sensors be placed?
Typical deployment locations include:
- Data centre racks to detect hot spots
- Server room aisles
- High-density compute areas
- Remote facility zones
- Areas prone to airflow or humidity variation
Using multiple sensors provides improved environmental visibility.
Does the sensor require calibration or maintenance?
The sensor provides long-term measurement stability, but periodic calibration may be recommended depending on compliance policies or SLA requirements. Its magnetic mounting allows quick inspection or repositioning during maintenance.
What industries or environments is this sensor suitable for?
Common applications include:
- Data centres
- Enterprise server rooms
- Edge computing sites
- Network closets
- Telecom facilities
- Industrial IT environments
What temperature should a data centre operate at?
Data centres should maintain inlet air temperatures between 18°C and 27°C (64.4°F to 80.6°F), according to ASHRAE. While 21°C is optimal, higher temperatures reduce energy use. Moreover, modern servers can usually handle temperatures up to 35°C or 40°C, based on the specific hardware.
What humidity level is safe for servers?
For the best performance, maintain server room humidity at 40% to 60%. This level prevents two major risks. First, it stops static electricity, which happens when the air is too dry (below 40%). Second, it prevents corrosion and condensation, which happen when the air is too moist (above 60%).
Get in touch today
To discover more about temperature and humidity monitoring, or to discuss a requirement please contact us.

