TR-72nw-S High Precision Temperature and Humidity Data Logger

TR-72nw-S High Precision Temperature and Humidity Data Logger

  • $324.00 USD
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The TR-72nw is a temperature/humidity logger, but is available in a high precision model--TR-72nw-S.  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-72nw or TR-72nw-H only).

Sensor Platinum Resistance Electrostatic Capacitance
Measurement Channels Temperature 1ch Humidity 1ch
Measurement Units °C, °F %RH
Measurement Range Internal Sensor
External Sensor -25 to 70°C

0 to 99%RH (*3)

Accuracy ±0.3°C
at 10 to 40°C
±0.5°C
at all other temperatures
±2.5%RH
at 15 to 35°C, 30 to 80%RH

Measurement Resolution 0.1°C 0.1%RH
Responsiveness Response Time (90%): Approx. 7 min. Response Time (90%): Approx. 7 min.
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

TR-7wf

Standard: IEEE 802.11b
Security (*4): WEP (64bit/128bit), WPA-PSK(TKIP), WPA2-PSK(AES)
WPS 2.0: Push Button Configuration
Protocol: HTTP (*5), DHCP, DNS

Wired LAN Communication

TR-7nw

100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP (*5), DHCP, DNS

USB Communication

TR-7wf/nw

USB 2.0 Mini-B connector
Power 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*4 With LAN communication: Approx. 10 days to 1.5 years *5
Without LAN communication: Approx. 1.5 years
Dimensions H 58 mm × W 78 mm × D 26 mm
Weight TR-7wf: Approx. 55 g
TR-7nw: Approx. 65 g
Operating Environment Temperature: -10 to 60°C *6
Humidity: 90%RH or less (no condensation)
Accessories*7 High Precision Temperature-Humidity Sensor (SHA-3151) × 1, 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*8

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
(For the compatible versions, please go to the app download page from here.)
Display Languages *9 English
  • *1: Compatible wire sizes are as follows. Single Wire : 0.32 to Ø0.65 ( AWG 28 - 22 ), Twisted Wire : 0.08 to 0.32 ( AWG 28 - 22 ), 0.12 or more in diameter, Stripping Length : 9 to 10
  • *2: When Auto Upload is used frequently, the measurement of the internal sensor may rise by around 0.3°C . 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.
  • *3: When continually used in environments with temperatures above 60°C, accuracy of humidity measurements will decrease over time. Also, humidity cannot be measured at temperatures below -20°C.
  • *4: 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.
  • *5: HTTP client. Proxy supported. ( for firmware version 1.05 or above for TR-71wf/72wf).
  • *6: When using external power, the internal temperature of the logger rises.
  • *7: 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.
  • *8: -10 to 45 °C when using external power ( TR-7nw only ).
  • *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. The specifications listed above are subject to change without notice.

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Customer Service

The customer service at Tech Instruments is excellent!

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It didn't work

Hi Vincent, Please confirm that you have purchased the correct sensor for your base station. It's also possible that the base station is defective. Please contact us for assistance.
Great unit for the price.

Easy to set up and use, easy to see from a distance. A great unit for the price, I will buy another to replace another old one.

I did submit a very positive review. But this rating software keeps prompting me as though you aren't getting it. Must hang up. Sorry.

Better than original

Easy to install. Works well, totally satisfied !