TR-51A Temperature Datalogger

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500.00 Grams
Minimum Purchase:
1 unit
Calculated at Checkout
  • TR-51A Temperature Datalogger (TR-51A)
  • TR-51A Temperature Datalogger (TR-51A)
  • TR-51A Temperature Datalogger (TR-51A)


Measurement Item Temperature Temperature
Measurement Channels 1 Ch (Internal Sensor Type) 1 Ch (External Sensor type)
Measurement Range -40 to 80°C -60 to 155°C
Response Time
(in 90% still air)
About 35 min.   -
Measurement Accuracy Avg. ±0.5°C Avg. ±0.3°C : -20 to 80°C
  -40 to -20°C/ 80 to 110°C
Avg. ±1.0°C : 
  -60 to -40°C/ 110 to 155°C
Measurement Display Resolution 0.1°C
Logging Capacity 16,000 Readings
Recording Start Method Immediate / Programmed
Recording Mordes Endless / One Time
Recording Interval Select from 1,2,5,10,15,20 and 30 sec. / 1,2,5,10,15,20,30 and 60 min.
LCD Displayed Items Measured Temperature, Recording Status, Recording Mode,
Infrared Communication Status, Battery Life Warning, Unit of Measurement,
Full(Storage Capacity FULL), Unconnected Sensor, 
Measurement Range Exceeded, Upper/Lower Limit Exceeded
Communication Interfaces Optical Communication / Infrared Communication
Infrared Communication IrPHY 1.2 low power
Communication Time When downloading 1 Unit at full logging capacity:
Optical Communication: 
  About 24 sec. (TR-57DCi),
  About 20 sec. (TR-50U),
  About 160 sec. (TR-57U),
Infrared Communication:
  About 55 sec. (TR-57DCi)
Power (*1) Lithium battery LS14250 x 1 (Lithium battery CR2 also okay)
Battery Life (*2) Maximum 4 years
(2 years if it's been selected to "Permit" infrared communication)
Waterproof Capacity IP67 (Immersion proof) IP64 (Splash resistant)
External Dimensions H62mm x W47mm x D19mm (Excluding protrusions and External Sensor)
Weight About. 54g
including battery
About. 55g
including battery/excluding sensor
Operating Environment -40 to 80°C
When using Lithium Batteries (CR2) sold in stores: -20 to 60°C
Data Collection Devices  Communication Port: TR-50U
 Data Collectors: TR-57DCi, TR-57U, RTR-57U
(*1) The included Lithium Battery (LS14250) is not sold in stores. Please purchase the "Optional Battery Set TR-11P2" for replacement.
(*2) Battery life depends upon the measuring environment, recording interval, and quality of the battery being used. When infrared communication function is enabled, battery life may be shortened if the unit is used under the inverter type fluorescent lighting.


1.LCD Display
2.Infrared Port
3.Optical Communication Area
4.ALM(ALARM / Warning LED)
5.Back Case
Temperature / Humidity Graph
Up to eight channels of temperature and humidity data can be simultaneosly viewed in one Temp / Humidity Graph and up to eight channels of voltage, pulse, temperature and humidity data can be view channels, make changes to graph colors and zoom-in and -out on data with the click of a mouse. Color printing of the graph, as you see it on display, is also possible.
Data Collection
Upon downloading, a data collection report is displayed in an easy-to-view list. From there it is possible to change all downloaded data or selected data into graph form or into Text File Format.

Display Data in Table Form
The data in the graph can be viewed in table form with the High in red, the Low in blue and the Average in pink. You can print all of the data in the list or select and print only those pages you desire.

Save as Text File Function
This function allows you to save data in Text File Format (CSV Format); in order to use the data with spreadsheet applications such as Excel and Lotus.
  • CE
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Warranty Information

One-Year Warranty
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