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Room Temperature Alarm Systems

Room Over Temperature and Humidity Alarm

Ensure the safety and efficiency of your critical environments with the advanced Room Over Temperature and Humidity Alarm. Designed specifically for sensitive areas such as server rooms, generator rooms, UPS rooms, containers, and medical storage spaces, this alarm system helps prevent equipment damage caused by over-temperature or humidity due to faulty cooling systems.

Key Features and Benefits of the Room Over Temperature and Humidity Alarm:

  • Comprehensive Monitoring:
    • Monitors both temperature and humidity in up to two zones.
    • Tracks current ambient conditions and displays them on a large, backlit alpha-numeric screen.
  • Adjustable Alarm Trigger Points:
    • Set tamper-proof alarm thresholds for temperature (0-50°C) and humidity (0-90%RH).
    • Customizable for the specific needs of each zone.
  • Clear Alarm Indications:
    • Displays zone number, alarm type, and alarm setpoint when thresholds are exceeded.
    • Provides visual and audible alerts to notify operators immediately.
  • Enhanced Connectivity and Reporting:
    • Optional SMS text message for remote alerts when you are not in the area.
    • Connect to your Building Management Systems (BMS).
  • Failsafe Operation:
    • In case of power failure, the internal volt-free “Common Alarm” BMS contact changes state for immediate notification.
Image of a Room Over Temperature and Humidity Alarm. Alarm panel shows both the temperature and humidity in zone 1.
Optional Equipment
Beacon Sounder - for remote alarm indication Picture of a GMS text messaging unit used to connect to temperature and leak alarm systems
Picture of a Room Temperature and Humidity sensor. Used with the RHTA Alarm Panel from CMR Electrical.
Install a sensor in each zone to continuously monitor both temperature and humidity. Sensor dimensions: 86mm x 86mm.

Where do you put a temperature and humidity sensor?

Proper placement of temperature and humidity sensors is critical for accurate environmental monitoring. Follow these best practices to ensure reliable performance:

By following these recommendations, you can optimize the accuracy and effectiveness of your temperature and humidity monitoring system.

What should room temperature and humidity be?

Maintaining precise temperature and humidity levels is critical across various environments to ensure comfort, productivity, and the preservation of sensitive materials. In office buildings, optimal conditions enhance worker well-being and productivity. In specialized environments such as factories, art galleries, and pharmaceutical facilities, controlling these parameters becomes essential to prevent damage to products, artwork, and equipment.

For example, in the paper and printing industries, relative humidity above 60% can cause irreversible damage such as curling and swelling, compromising product integrity. Similarly, pharmaceutical production requires strict humidity control to prevent moisture absorption, which can degrade product quality and alter drying processes. Art galleries and museums maintain temperature and humidity levels at 70°F (±4°F) and 45% RH (±8%) to preserve delicate artwork and historical documents.

To achieve reliable results, sensors and monitoring systems are critical. Setting humidity between 30%–50% RH and temperature between 68°F–72°F (20°C–22°C) is generally recommended for most environments to ensure a balance of protection, comfort, and productivity.

Standard Features of the RHTA

Standard Features:

  • Available as a 1 or 2-zone system.
  • Supports remote temperature sensors up to 50m from the main unit.
  • Provides tamper-proof, individual alarm adjustments for each zone.
  • Equipped with plug-and-socket terminals for easy installation.
  • Includes an on-board audible warning device for local alerts.
  • Alarms are latched until manually muted.
  • Two common alarm relay contacts for onward signaling.
  • Monitors mains power and signals changes via the common alarm BMS contact.

Optional Equipment:

  • SMS text messaging for remote monitoring. Up to 5 different users.
  • Individual Zone Alarm Relay contacts to communicate with BMS or PLC Alarm.
  • Flashing audible beacon for more noticeable alarm.

Data Sheet
RHTA Information

Installation Manual
RHTA-Manual-1

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