Data Centre Sensor Requirements: Selection and Placement

Data Centre Sensor Requirements: Selection and Placement

Vaisala Data Centre Environmental Monitoring

Data Centre Environmental Monitoring Solutions in Malaysia

Modern data centres require accurate, stable and responsive measurement to maintain equipment reliability, cooling efficiency and continuous operation. Vaisala instruments provide dependable temperature, humidity, differential-pressure, chilled-water and outdoor environmental measurements for data centres of every size.

White-space monitoring HVAC and duct measurement Liquid-cooling infrastructure Centralised alarming and reporting
Reliable data-centre operation

Accurate measurement supports uptime and energy efficiency

Temperature and humidity conditions directly affect server reliability, cooling performance and energy consumption. Inaccurate or unstable measurements can lead to unnecessary overcooling, hidden hot spots, increased operating costs and avoidable equipment risk.

Vaisala measurement instruments are designed for demanding HVAC, building-automation and controlled-environment applications. Their long-term stability helps data-centre operators maintain trustworthy measurements while reducing calibration and maintenance requirements.

High Measurement Accuracy Reliable data for cooling control, alarm management and performance analysis.
Long-Term Stability Reduced sensor drift helps minimise unnecessary adjustment and recalibration.
Fast Response Rapid detection of temperature and humidity changes around critical equipment.
Flexible Integration Analog, Modbus, BACnet and other options for BMS and monitoring systems.
Measurement applications

Complete Data Centre Monitoring

Effective environmental monitoring extends from the server rack to the cooling plant, ventilation system and outdoor environment.

01

White-Space Temperature and Humidity

Monitor environmental conditions at server-rack inlets, rack outlets, hot aisles, cold aisles and representative room locations. Multiple measuring points help reveal temperature stratification, airflow imbalance and localised hot spots.

Recommended locations Rack inlet and outlet Hot and cold aisles Data-hall walls
02

HVAC and Duct Monitoring

Measure supply-air and return-air temperature and humidity around computer-room air-handling units, computer-room air-conditioning units and ventilation ducts. Accurate measurements support responsive cooling control and improved energy performance.

Recommended locations Supply-air ducts Return-air ducts Cooling-unit discharge
03

Chilled-Water and Liquid-Cooling Temperature

Accurate supply and return water-temperature measurements help operators evaluate temperature differential, heat transfer and cooling-system performance. The same principles apply to chilled-water circuits, cooling distribution units and liquid-cooled rack infrastructure.

Recommended locations Chilled-water supply Chilled-water return Cooling distribution units
04

Differential-Pressure Monitoring

Monitor pressure relationships between data halls, corridors, equipment rooms, raised-floor plenums and adjacent areas. Differential-pressure measurements help verify airflow direction and support stable environmental control.

Recommended locations Data hall to corridor Raised-floor plenum Controlled equipment rooms
05

Compact Probe Installations

Space-restricted measuring points may require compact probes with small thermal mass and fast response. These probes are suitable for rack-level measurements, equipment enclosures and locations where standard wall transmitters are impractical.

Recommended locations Server-rack monitoring Equipment enclosures Rapidly changing environments
06

Carbon Dioxide and Indoor Air Quality

Carbon-dioxide, humidity and temperature measurements can support occupied technical spaces, control rooms and other indoor environments associated with data-centre operation.

Recommended locations Control rooms Occupied technical spaces Indoor-air monitoring points
07

Outdoor Weather and Economiser Monitoring

Data centres using air-side economisers require dependable outdoor measurements. Outdoor temperature, humidity and weather conditions help determine whether external air can be used safely and efficiently for cooling.

Recommended locations Outdoor-air intake Rooftop weather station Economiser reference point
08

Centralised Continuous Monitoring

The Vaisala viewLinc Continuous Monitoring System provides centralised measurement records, alarms, reports and audit trails. It can monitor server rooms, equipment spaces, cooling infrastructure and other critical locations from one platform.

System capabilities Continuous measurement records Remote alarms and reporting Centralised system visibility
09

BMS and DCIM Integration

Measurement instruments can be integrated into building-management and data-centre infrastructure-management systems using suitable analog or digital outputs. Selection should consider the required protocol, cable distance, network architecture and maintenance strategy.

Integration options Analog signals Modbus communication Building-automation integration

Prevent Hot Spots

Rack-level measurements reveal localised temperature conditions that may not be visible from a single room sensor.

View white-space monitoring →

Improve Cooling Efficiency

Accurate supply and return measurements help operators reduce unnecessary overcooling while maintaining reliable conditions.

View HVAC monitoring →

Support Liquid Cooling

High-accuracy water-temperature measurement supports chilled-water and liquid-cooling performance analysis.

View liquid-cooling measurement →
Continuous Monitoring Platform

Vaisala viewLinc for Critical Data Centre Environments

For facilities requiring independent environmental monitoring, viewLinc combines compatible data loggers, network communication, alarm management and reporting in one system.

  • Continuous temperature and humidity monitoring
  • Threshold, device and communication alarms
  • Historical reports and trend review
  • Centralised visibility across multiple locations
  • Expandable architecture for future monitoring points
Explore the Vaisala viewLinc system →
Monitoring coverage Data halls Server rooms Cooling infrastructure Electrical rooms Remote facilities
Smart-Probe Platform

Vaisala Indigo Transmitters

Vaisala Indigo transmitters provide flexible interfaces for compatible smart probes. Different transmitter models offer local displays, analog outputs, relays and digital communication options for demanding data-centre and HVAC applications.

The probe and transmitter can be selected according to the required parameter, installation format, communication method and level of local indication.

Quick selection guide

Recommended Instrument by Monitoring Requirement

General room monitoring HMW80
Premium room monitoring HMW90
High-accuracy HVAC HMW110
Supply and return ducts HMD60
Chilled-water temperature TMI110
Differential pressure PDT101
Compact installations XMP10
CO₂ and indoor air quality XMW85
Outdoor weather WXT530
Centralised monitoring viewLinc
Vaisala data centre solutions in Malaysia

Plan the Right Monitoring Architecture

Share your room layout, cooling design, required parameters and integration method. Seacom can assist with monitoring-point selection, instrument configuration, installation planning and system commissioning.

Contact Seacom

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