Temperature & Humidity Monitoring for Data Centers
Remote Temperature and Humidity Monitoring for Data Centers and Server Rooms
Modern data centers and server rooms contain high-value IT equipment that is extremely sensitive to temperature and humidity. The SensMax SensGuard remote temperature and humidity monitoring system helps prevent overheating, condensation and static-related failures by continuously supervising the environment around racks, cabinets and network rooms and issuing instant alerts if conditions move outside the safe range.
What this solution does
SensGuard provides continuous server room temperature monitoring and humidity monitoring at multiple points in a data center. Wireless sensors measure ambient conditions near racks, in hot and cold aisles, in UPS rooms and in network closets. Measured values are sent to the cloud every 5 minutes, where they are compared with predefined thresholds for each zone.
If cooling fails, airflow is blocked or humidity drifts into a dangerous range, the system immediately notifies responsible staff so they can take action before servers overheat or hardware is damaged. This reduces the risk of downtime, protects equipment investments and helps maintain SLAs for hosted services.
Where you can use it
- Data centers – monitoring hot and cold aisles, server racks and equipment rooms.
- Corporate server rooms – ensuring stable conditions for critical business systems.
- Network and telecom rooms – supervising switches, routers and communication equipment.
- UPS and battery rooms – tracking temperature near batteries and power systems.
- Small IT closets in branch offices – simple remote monitoring without on-site staff.
Typical installation points of sensors in data centers and server rooms: hot/cold aisles, racks, UPS rooms and network closets.
How the SensGuard system works
Cooling systems, air distribution and humidity control in IT rooms must be monitored 24/7. SensGuard uses wireless temperature and humidity sensors installed at critical locations to measure conditions every 5 minutes. For each sensor you can configure individual min/max thresholds for temperature and humidity, as well as allowed violation time to avoid false alarms during brief fluctuations.
SensGuard monitoring architecture for server rooms and data centers.
The SensGuard solution consists of three main components:
- Wireless temperature and humidity sensors that monitor conditions at racks, corridors and technical rooms.
- The SensMax TCP LR X2 data gateway that gathers sensor readings and transmits them securely to the SensGuard cloud.
- SensGuard cloud software that visualises all server room zones, alarms and historical trends in a web browser.
Sensors operate on an internal nonflammable battery for up to 5 years and are designed for IT environments. One gateway can handle up to 250 wireless sensors within a 150 m range (expandable using repeaters) and includes short-term buffer memory to prevent data loss during Internet outages.
Hardware used in this solution
Different areas in a data center may require different types of sensors. SensMax offers several wireless temperature and humidity sensors and probe-based devices suitable for racks, technical rooms and specialized equipment.
| Device | Type | Temperature range | Accuracy | Resolution | Battery / Power | Typical use |
|---|---|---|---|---|---|---|
| MCP9800 wireless temperature sensor | Waterproof sensor | −20°C…+55°C | ±0.5°C | 0.1°C | up to 5 years | General server room areas, monitoring ambient temperature in hot and cold aisles. |
| ENS210 wireless temperature & humidity sensor | Temperature & humidity sensor | −20°C…+55°C / 0–100% RH | ±0.5°C / ±3.5% RH | 0.1°C | up to 5 years | Humidity-sensitive areas, such as network rooms or zones with mixed airflow. |
| DS18B20 probe-type wireless temperature sensor | Probe sensor | −30°C…+120°C | ±0.5°C | 0.1°C | up to 5 years | Monitoring temperature inside closed cabinets or near specific devices and power equipment. |
Reporting and alarm management
SensGuard records all temperature and humidity data, alarm events and user actions, creating a complete history for each monitored location. This helps IT and facility teams analyse trends, detect cooling issues early and document that environmental conditions stayed within agreed limits.
Historical charts can be exported as CSV or PDF reports for internal reviews, customer reports or contractual SLA documentation.
Recommended configuration for a typical data center or server room
- 5–40 wireless sensors, depending on the number of racks, rooms and technical areas.
- 1–2 SensMax TCP LR X2 gateways with LAN/Internet connection.
- SensGuard cloud accounts for IT operations, facility management and on-duty staff.
- Automatic alarm notifications via e-mail and Telegram messenger when thresholds are exceeded.
SensGuard cloud software
The SensGuard online portal gives IT and facility teams a clear overview of environmental conditions in all server rooms and data center zones. Users can:
- see real-time temperature and humidity values for each rack, room or cabinet;
- upload a data center map and place sensors on it to pinpoint problem locations quickly;
- set separate min/max thresholds and allowed violation times for different zones;
- configure alarm routing so that specific teams receive alerts for particular rooms or racks;
- review alarm history and operator comments for root-cause analysis;
- download detailed temperature and humidity reports for any selected period.
Overview of monitored server rooms and technical areas with current temperature and humidity values.
List of sensors near racks, UPS rooms and network closets with live status indicators.
Temperature and humidity sensor detail view of threshold settings.
Trend chart showing temperature and humidity behaviour in a server room over time, including alarm periods.
