TR-71nw Temperature Data Logger for Cloud Storage-Wired LAN - Tech Instrumentation - TandD

TR-71nw Temperature Data Logger for Cloud Storage-Wired LAN

  • $210.40 USD
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The TR-71nw is a temperature data logger that can monitor two temperature zones, while the TR-72nw is a temperature/humidity logger.  By using T&D WebStorage Service, a cloud service provided by T&D free of charge, it is possible to access stored data anytime from anywhere.

Power Over Ethernet:  PoE IEEE 802.3af (TR-71nw or TR-72nw only)


Sensor Thermistor
(Internal / External)
Measurement Channels Temperature 2ch
(Internal 1ch / External 2ch)
Measurement Units °C, °F
Measurement Range Internal Sensor -10 to 60°C *1
External Sensor -40 to 110°C (Supplied Sensor)
-60 to 155°C (Optional Sensor: Fluoropolymer Coated Type)
Accuracy Avg. ±0.3°C
at -20 to 80°C
Avg. ±0.5°C
at -40 to -20°C / 80 to 110°C
Measurement Resolution 0.1°C
Responsiveness Thermal Time Constant: Approx. 75 sec.
Response Time (90%): Approx. 190 sec.
LCD Display Items Measurements (fixed or alternating display), Battery Warning Mark, etc.
Logging Capacity 8,000 data sets (One data set consists of readings for all channels in that type of unit.)
Recording Interval Select from 15 choices: 1, 2, 5, 10, 15, 20, 30 sec. or 1, 2, 5, 10, 15, 20, 30, 60 min.
Recording Mode Endless (Overwrite oldest data when capacity is full) or One Time (Stop recording when capacity is full)
Auto-upload Interval Select from 15 choices: OFF (No auto-upload), 1, 2, 5, 10, 15, 20, 30 min. or 1, 2, 3, 4, 6, 12, 24 hrs.
Communication Interfaces

Wireless LAN Communication


Standard: IEEE 802.11b
Security *2: WEP (64bit/128bit), WPA-PSK(TKIP), WPA2-PSK(AES)
WPS 2.0: Push Button Configuration
Protocol: HTTP *3, DHCP, DNS

Wired LAN Communication


100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP *3, DHCP, DNS

USB Communication


USB 2.0 Mini-B connector
Power *4 Battery: AA Alkaline × 2 (AA Ni-MH batteries may also be used)
External: USB Bus (5V 200mA), AC Adaptor (AD-05A2 or AD-05C2),
PoE IEEE 802.3af (TR-7nw only)
Battery Life *5 With LAN communication: Approx. 10 days to 1.5 years *6
Without LAN communication: Approx. 1.5 years
Dimensions H 58mm × W 78mm × D 26mm
Weight TR-7wf: Approx. 55 g
TR-7nw: Approx. 65 g
Operating Environment Temperature: -10 to 60°C *7
Humidity: 90%RH or less (no condensation)
Accessories *8 Temperature Sensor (TR-0106) × 2, AA Alkaline Battery (LR6) × 2, Registration Code Label, USB Mini-B Cable (US-15C), Manual Set (Warranty Included)
Software PC Software: TR-7wf/nw for Windows, T&D Graph, T&D Data Server
Mobile App: T&D Thermo
Compatible OS *9

PC Software

Microsoft Windows 10 32/64bit
Microsoft Windows 8 32/64bit
Microsoft Windows 7 32/64bit
Microsoft Windows Vista 32 bit SP1 or later (T&D Data Server not compatible)

Mobile App

Android OS, iOS
Display Languages *10 English
  • *1For TR-71wf: When wireless LAN communication is used frequently, the measurement of the internal sensor may rise by around 0.3°C.
    For TR-71wf and TR-71nw: When using external power, the data logger itself generates heat and the internal sensor will report a temperature much higher than ambient; we recommend using an external temperature sensor in this case.
  • *2: The WPS feature is not available when WEP(64bit/128bit) or WPA-PSK(TKIP) is selected in Access Point Settings. If you wish to use the WPS feature, please select WPA2-PSK(AES) or disable wireless security.
  • *3: HTTP client. Proxy supported (for firmware version 1.05 or above for TR-7wf).
  • *4: When using external power, the internal temperature of the logger rises.
  • *5: Battery life varies depending upon multiple factors including frequency of communication, LAN environment, ambient temperature, recording interval, and battery performance. All estimates are based on operations carried out with a new battery and are in no way a guarantee of actual battery life.
  • *6: Approx. 10 days when Auto-upload Interval is 1 min, 1 yr when 1 hr, 1.5 yrs when 12 hrs or more.
  • *7: -10 to 45°C when using external power. (for TR-7nw)
  • *8: Software is not included in the package, but can be downloaded free of charge from
  • *9: For installation, it is necessary to have Administrator (Computer Administrator) rights.
  • *10: We recommend using an operating system in the same language as the display language. Operation in different languages is not guaranteed.


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La Crosse Technology
La Crosse Wireless Temperature Sensor
Great service
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