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External Sensor for Quick Response

Measurement ChannelsTemperature 1ch (External)
Measurement Range-60 to 155°C
AccuracyAvg. ±0.3°C
SKU: H50454IN Category:



Our flagship RTR-500 series has a solution for just about everyone.
It includes a 13 different type loggers to meet measurement needs and 4 types of wireless base unit/data collectors to match your situation.
Create the system you need and take advantage of our free of charge cloud based “T&D WebStorage Service”.



Important Notice
Wireless products cannot be used in countries other than where those products have been approved for use, according to that country’s wireless regulations. T&D Corporation cannot provide sales or support for wireless products to be used in unapproved areas. For more information on the approved areas, please contact your local distributor.



EN 12830 Compliant

The RTR-501 and RTR-502 data loggers comply with EN12830, the European Standard regarding Temperature recorders for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice cream.



  • Wireless Collection of Recorded Data
  • Automatic Data Upload
  • Warning Monitoring Function



T&D CORPORATION : The Dream Gains StrengthIn 1986, a small group of young engineers gathered in Matsumoto, Japan with the dream of creating, developing and producing innovative and interest-sparking products. The name of their new company, T&D Corporation, was a reflection of that pioneering spirit: the T standing for TRY and the D standing for DEVELOPMENT.One of the products that they TRIED and DEVELOPED had an incredible impact on the Japanese data logger market. In 1994, their PC compatible compact temperature and humidity data logger became the industry standard and shot T&D into the spotlight.A lot has changed in the world since 1986, and during that time T&D has been at the forefront of creating new products and solutions to meet the modern customer's demand for "anytime anywhere access" to data. Their data logging systems based on wireless communication and LAN or 3G networking, coupled with the introduction of its free-of-charge cloud storage service "T&D WebStorage Service" are clear examples of their continued dedication to their original dream.Moreover, at the dawn of the 21st century this dream grew international and in 2016 at the 30th anniversary of its founding, T&D currently has over 80 distributors worldwide and head offices in both North America and Europe.

Additional information

Weight.065 kg
Dimensions6.2 × 4.7 × 4.65 cm
Measurement ChannelsTemperature 1ch (External)
Measurement Range-60 to 155°C
AccuracyAvg. ±0.3°C
LCD DisplayMeasurements, Battery Life Warning, etc.
Logging Capacity16000
Recording Intervals15 choices from 1 sec. to 60 min.
Recording ModeEndless/Onetime
Comm InterfacesOptical, Short Range Wireless
PowerLithium Battery
Operating Environment-40 to 80°C (-30 to 80°C during wireless communications)
DimensionsH:62mm × W:47mm × D:19mm, L type 46.5mm
Waterproof CapacityIP64
Battery LifeAbout 10 months
L Type: About 4 years
AccessoriesTemperature Sensor , Lithium Battery (LS14250) or Large Capacity Battery Adaptor Kit (RTR-500B1), etc.
Reference PriceRTR-502 : US$170 , RTR-502L : US$180
Prices are for reference only; please check with your local distributor for exact pricing.