By T&D Data Loggers
From: £155.00


Wi-Fi, Bluetooth and USB, Web and APP accessible, 2 channel temperature network data logger.

Customise this datalogger

Part of a suite of products designed to work as a complete monitoring system

  • Calibration Certificate
  • Bracket
  • Extension Cable
* Calibration takes between 3 - 7 business days Add and customise

Measuring Range

-40 to +110 °C via two waterproof flexible probes supplied as standard

Connection Options

Bluetooth setup with wireless data collection via WiFi or standalone operation via USB

Real-time data

Automated download with emails alarms and online cloud reporting via the free WebStorageService (WSS)


Product Description

VFC Update for vaccine temperature management

Free - Online Cloud Interface and data storage
Free - Mobile Application (APP) for iOS and Android Includes PDF reporting on mobile

Utilise your existing Wi-Fi network to create a wireless temperature data logging and alarm monitoring system with the TR71A,  a 2 channel temperature data logger.
Interface with your TR71A in the field using the built-in Bluetooth functionality and an iOS or Android compatible mobile device.

This battery or mains powered data logger displays, collects and stores temperature data measured by two interchangeable temperature sensors supplied in the box. Historical data can be extracted to a PC using the integral USB connector or linked in real-time data via the Wi-Fi module to a mobile device running iOS, Android or that hosts an internet connection and browser.

Boasts a large LCD display showing temperature readings from probe 1 and probe 2, along with min/max, alarm condition, recording, network and battery status.

Connect your temperature data logger to a temperature probe installed in a fridge, with the second installed in free air. Add multiple data loggers until all of appliances have been covered and then monitor your data and alarm conditions from a central location via the TandD cloud utility called 'Webstorage-service'.

Unlike alternatives offered by LS and our competitors, TandD deliver free application and cloud storage utilities with no contracts or restrictions. Traditionally costs associated with these centralised cloud services is invoiced monthly or annually and should always be considered when calculating the TandD cost of ownership versus any other alternative networked solution.


  • Wi-Fi (WLAN)
  • Direct via USB
  • Bluetooth
  • Online using free cloud storage utility

Alternative powering options

  • 5v 200mA USB power supply

Compatibility and expansion

In addition to a limitless number of TR71A data loggers that can be located at any geographical location, once assigned to 'Webstorage-service' you can add any number of the following data logging solutions;

  • TR-72A Humidity and temperature data loggers
  • RTR500B system including the RTR500MBS - 3G GSM base station for collecting data from RTR500 data loggers at locations where there is no I.T infrastructure

Compatibility mobile applications

Google Play BadgeApp Store Badge






Usage Type

Multiple use


Wireless LAN

Sensor internal or external

2 x External
(1 x Internal if no probes are connected)



Sensor type



30'0000 readings

Sample rate

1 reading a second ~ 1 reading an hour


-40°C ~ 110°C with supplied sensors
-60°C ~ 155°C with optional sensors


+/- 0.3°C




ABS plastic


Internal battery
USB power supply

Battery Life

500 days [USB mode]


58mm x 78mm x 26mm
Probes are 600mm long

Operating Conditions

-10°C ~ +60°C
<90% rH




Cloud data storage
Globally accessible data
Networked data
Automatic download
Free software
Email alerts
LCD display

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