• Wireless Temperature Data Loggers

Wireless Temperature Data Loggers

  • TandD - RTR-501- RTR-501L

EN 12830

  • Temperature 1ch (internal sensor )
  • Measurement Range: -40 to 80°C
  • Gradual Response Time

Internal Sensor for Better Water Protection

The compact RTR-501 logger has a single internal temperature sensor and works with any of the data collectors in the RTR-500 series. It is water resistant and dustproof, making it ideal for use in harsh environments, such as frozen or refrigerated storage.


  • Temperature 1ch (internal sensor )
  • Measurement Range: -40 to 80°C
  • EN 12830 Compliant
  • Gradual Response Time
  • Optimum Waterproof and Dustproof Capabilities
  • Wireless Collection of Recorded Data
  • Automatic Data Upload
  • Warning Monitoring Function

Collect Data via Wireless Communication with a Base Unit

Data loggers in our RTR-500 Series only function as Remote Units and need to be used with one of collection devices (Base Unit).(see complementary products tab)

The collected data can then be transmitted to a PC by a variety of methods such as USB, E-mail, or FTP. Moreover, various functions, such as the monitoring of current readings and warning notification, make it a powerful data management system. * Select a Base Unit according to the type and scale of the measuring environment.

L-type model

L-type model is designed with a large capacity battery pack. Battery life of the L type is four times longer than that of the normal type.

Measurement Channels Temperature 1ch (Internal)
Measurement Range -40 to 80°C
Accuracy ±0.5%
LCD Display Measurements, Battery Life Warning, etc.
Logging Capacity 16000
Recording Intervals 15 choices from 1 sec. to 60 min.
Recording Mode Endless/Onetime
Comm Interfaces Optical, Short Range Wireless
Power Lithium Battery
Operating Environment -40 to 80°C (-30 to 80°C during wireless communications)
Dimensions H:62mm × W:47mm × D:19mm, L type 46.5mm
Waterproof Capacity IP67
Battery Life About 10 months
L Type: About 4 years
Accessories Lithium Battery (LS14250) or Large Capacity Battery Adaptor Kit (RTR-500B1), etc.