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TR-71nw |
TR-72nw |
TR-72nw-H |
Sensor (External) (*1) |
Thermistor |
Thermistor |
Polymer Resistance |
Platinum Resistance |
Electrostatic Capacitance |
Measurement Channels |
Temperature 2ch |
Temperature 1ch |
Humidity 1ch |
Temperature 1ch |
Humidity 1ch |
Measurement Units |
°C, °F |
°C, °F |
%RH |
°C, °F |
%RH |
Measurement Range |
-10 to 60°C
(Internal Sensor)*1
-40 to 110 °C (Supplied Sensor) |
0 to 55 °C |
10 to 95 %RH |
-30 to 80 °C |
0 to 99 %RH |
Accuracy |
Avg.±0.3 °C
[-20 to 80 °C]
Avg.±0.5 °C
[-40 to -20 / 80 to 110 °C] |
±0.5 °C |
±5 %RH
[at 25 °C, 50 %RH] |
±0.3 °C
[0 to 50 °C]
±0.5 °C
[all other temperatures] |
±2.5 %RH
[at 25 °C, 10 to 85 %RH]
±4.0 %RH
[at 25 °C, 0 to 10 %, 85 to 99 %RH]
At temperatures other than 25 °C and ≥ 0 °°, add ±0.1
%RH per degree of difference from 25. Humidity Hysteresis: ±1.5
%RH or lower (*2) |
Measurement Resolution |
0.1 °C |
0.1 °C |
1 %RH |
0.1 °C |
0.1 %RH |
Responsiveness |
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) 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 |
Wired LAN Communication
100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP *3, DHCP, DNS
USB Communication
USB 2.0 Mini-B connector |
Power |
AA Alkaline Battery x 2 (AA Ni-MH batteries may also be
used), USB Bus Power (5 V 200 mA)
, 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 58mm × W 78mm × D 26mm |
Weight |
Approx. 65g |
Operating Environment |
Temperature: -10 to 60 °C
Humidity: 90 %RH or less (no condensation) |
Accessories *7 |
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,
Manual Set (Warranty Included) |
Software |
TR-7wf/nw for Windows, T&D Graph, T&D Thermo |
- *1:For TR-71wf: When wireless LAN communication is used frequently, the measurement of the internal sensor may rise by around 0.3°C.
For TR-71nw: When using PoE or USB as the power supply, the data logger itself generates heat and internal sensor will report a temperature approximately 15°C higher than ambient.
- *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: 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.
- *5: Approx. 10 days when Auto-upload Interval is 1 min, 1 yr when 1 hr, 1.5 yrs when 12 hrs or more.
- *6: -10 to 45°C when using external power (PoE or USB). (for TR-7nw)
- *7: Software is not included in the package, but can be downloaded free of charge from the download page.
- *8: For installation, it is necessary to have Administrator (Computer Administrator) rights.
- *9: If you are using Windows 8, please note that our software is designed to be used in “Desktop” mode only.
- *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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