Data Loggers Measurement Type - Temperature & Humidity

TR-7nw Series

Estimated delivery within 4-7 working days
TR-7nw Series


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Measurement Channels


Temperature 2ch (Internal 1ch / External 2ch)

Temperature 1ch, Humidity 1ch(External)

Temperature 1ch, Humidity 1ch(External)

Temperature 2ch





Polymer Resistance

Platinum Resistance

Electrostatic Capacitance

Thermocouple: Type K, J, T, E, S, R (*1)


Internal Sensor

-10 to 60°C (*2)






External Sensor

-40 to 110°C (Supplied Sensor)

-60 to 155°C (Optional Sensor)

0 to 55 °C

10 to 95 %RH

-30 to 80 °C

0 to 99 %RH (*3)

K -199 to 1370 °C J -199 to 1200 °C T -199 to 400 °C E -199 to 1000 °C S -50 to 1760 °C R -50 to 1760 °C


Avg. ±0.3°C
[ -20 to 80 °C]
Avg. ±0.5°C
[ -40 to -20 °C / 80 to 110 °C]


±5 %RH
[ at 25°C, 50%RH]

[ 0 to 50°C]
[ all other

±2.5 %RH at 15 to 35 °C, 30 to 80 %RH

Thermocouple Measurement (Sensor inaccuracies not included) K, J, T, E : ±(0.5 °C + 0.3 % of reading) at -100°C or above S, R : ±(1.5 °C + 0.3 % of reading) at 100°C or above Cold Junction Compensation ±0.5°C at 10 to 40 °C ±0.8°C other temperatures within the operating environment of the logger

Measurement Resolution

0.1 °C

0.1 °C

1 %RH


0.1 %RH

K, J, T, E : 0.1 °C S, R : approx. 0.2 °C


Thermal Time Constant:
Approx. 75 sec.
Response Time (90%):
Approx. 190 sec.

Response Time (90%): Approx. 7 min.


Response Time (90%): Approx. 7 min.

Response Time (90%): Approx. 20 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)
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

Wired LAN Communication for TR-7nw: 100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP (*4), DHCP, DNS
USB Communication: USB 2.0 (Mini-B connector)

Power (*5)

AA Alkaline Battery x 2 (AA Ni-MH batteries may also be used), USB Bus Power (5V 200mA), PoE IEEE 802.3af (TR-7nw only)

Battery Life (*6)

With LAN communication: Approx. 10 days to 1.5 years
(Ex: Approx. 10 days when Auto-upload Interval is 1 min, 1 yr. when 1 hr, 1.5 yrs. when 12 hrs or more)

With LAN communication: Approx. 10 days to 1year Ex: Approx. 10 days when Auto-upload Interval is 1 min, 7 mos when 1 hr, 1yr when 12 hrs or more


H 58 mm x W 78 mm x D 26 mm


Approx. 55 g

Operating Environment

Temperature -10 to 60°C / -10 to 45°C when using external power (TR-7nw only)

Humidity 90 %RH or less (no condensation)


Temperature Sensor (TR-0106) x 2

Temperature/Humidity Sensor (THA-3001) x 1

High Precision Temperature/Humidity Sensor

(HHA-3151) x 1


AA Alkaline Battery (LR6) x 2, Registration Code Label, USB Mini-B Cable (US-15C), Manual Set (Warranty Included)

Software Compatible OS (*7)

TR-7wf/nw for Windows / T&D Graph / T&D Data Server (For PC) Microsoft Windows 10 32 / 64 bit Microsoft Windows 8 32 / 64 bit Microsoft Windows 7 32 / 64 bit Microsoft Windows Vista 32 bit SP1 or later (T&D Data Server not compatible) T&D Thermo (For Smart phone, Tablet) Android OS, iOS (For the compatible versions, please refer to our website.)

Display Languages (*8)



*1: Compatible wire sizes are as follows. Single Wire : 0.32 to 0.65 (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: HTTP client. Proxy supported. ( for firmware version 1.05 or above for TR-71wf/72wf ).

*5: When using external power, the internal temperature of the logger rises.

*6: 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.

*7: For installation, it is necessary to have Administrator ( Computer Administrator ) rights.

*8: 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.

Automatic Data Upload via LAN
Equipped with a  wired LAN (TR-7nw), the TR-7wf/nw series data loggerscan automatically upload recorded data to “T&D WebStorage Service” at the set interval. “T&D
WebStorage Service” is a cloud service provided by T&D free of charge. It enables the viewing of uploaded data on your PC or mobile device anytime, anywhere.

One and a Half Years of Operation with just Two Batteries
Battery-powered operation means the device can be placed anywhere without the need for AC power.
Depending on the settings, the TR-7wf/nw series can be used continuously for up to 1.5 years before its
batteries need to be replaced.

Get Temperature and Humidity in a Wider Range with Greater Accuracy
TR-72nw-H comes with a high precision temperature/humidity sensor. Features
include a humidity measurement accuracy of ±2.5%, as well as the wide range measurement of
temperature from -30 to 80 °C and humidity from 0 to 99%RH.

Large Logging Capacity: 8000 Data Sets
One data set consists of readings for all channels in that type of unit. If set at a recording interval of 60
minutes, it gives the user one year's worth of measurements.

Easy Operation via Front Buttons
It is possible to start and stop recording, change recording interval, and make the auto-upload setting by
using buttons on the device.

Application Examples
• For managing temperature and humidity in hospitals, museums, and temperature controlled
• Performance testing of humidity and heat control in housing
• For managing temperature and humidity in server rooms
• Recording temperature and humidity in subways and train cars