GAO Tek’s Active 433 MHz Humidity-Temperature RFID Tag

The humidity-temperature RFID tag monitors the ambient temperature and relative humidity.




The humidity-temperature RFID tag monitors the ambient temperature and relative humidity inside of data center racks to enable easy mapping of data center temperature profiles and air flow optimization. It also reports real-time environmental conditions periodically. The tag is designed for use in environmentally-sensitive areas such as IT data centers.

This single use RFID tag is encased in an impact resistant polycarbonate enclosure with a strong adhesive on the back of the case. It has a reliable performance in an operating temperature range of -20 °C to 70 °C and 0% to 95% RH with an accuracy of ±1.2 °C  and ±5% RH. The small form factor ensures clear signal transmission in high-density deployments. It features a low-battery alert function and operates with a very low duty cycle and a 10s beacon rate.

Key Features – UHF Humidity-Temperature RFID Tag

  • Accurate temperature monitoring within 1.2 °C
  • Accurate humidity monitoring within 5% RH
  • Encoded ratio transmissions at 433 MHz
  • Ideal for monitoring rack installed assets and sensitive equipment
  • Industrial-strength adhesive mounting and flexible mounting options
  • Enhances customers’ existing active RFID infrastructure
  • Ideal for high-density environments

Technical Specifications

Operating frequency 433.92 MHz
Unique Tag ID codes >500.000 unique IDs
Typical transmission range >30 ft
Modulation ASK
Stability Saw stabilized
Battery type Lithium CR2032 coin cell
Battery life >3 years
Construction Lexan polycarbonate enclosure with sensor cutout
Durability Tough, impact resistant and temperature stable
Mounting options 3 M 200 MP adhesive, zip-tie loop lanyard
Operating temperature -20 °C to 70 °C
Storage temperature -40 °C to 80 °C
Temperature sensor accuracy ±1.2 °C  (typical)
Humidity sensor accuracy ±5% (typical)
Dimensions 56.4 mm × 44.2 mm × 8.9 mm
Weight 34.16 g


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