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

TR-7wf

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

TR-7nw

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

USB Communication

TR-7wf/nw

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
(For the compatible versions, please go to the app download page from here.)
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 the download page.
  • *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.
Sensor Thermistor Polymer Resistance
Measurement Channels Temperature 1ch Humidity 1ch
Measurement Units °C, °F %RH
Measurement Range Internal Sensor - -
External Sensor 0 to 55°C 10 to 95%RH
Accuracy ±0.5°C ±5%RH
at 25°C, 50%RH
Measurement Resolution 0.1°C 1%RH
Responsiveness 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*1: WEP (64bit/128bit), WPA-PSK(TKIP), WPA2-PSK(AES)
WPS 2.0: Push Button Configuration
Protocol: HTTP*2, DHCP, DNS

Wired LAN Communication

TR-7nw

100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP*2, 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 *3 With LAN communication: Approx. 10 days to 1.5 years *4
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 *5
Humidity: 90%RH or less (no condensation)
Accessories *6 Temperature-Humidity Sensor (THA-3001) × 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 *7

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 *8 English
  • *1: 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.
  • *2: HTTP client. Proxy supported (for firmware version 1.05 or above for TR-7wf).
  • *3: 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.
  • *4: Approx. 10 days when Auto-upload Interval is 1 min, 1 yr when 1 hr, 1.5 yrs when 12 hrs or more.
  • *5: -10 to 45°C when using external power. (for TR-7nw)
  • *6: Software is not included in the package, but can be downloaded free of charge from the download page.
  • *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.
Sensor Platinum Resistance Electrostatic Capacitance
Measurement Channels Temperature 1ch Humidity 1ch
Measurement Units °C, °F %RH
Measurement Range Internal Sensor
External Sensor -30 to 80°C 0 to 99%RH
Accuracy ±0.3°C
at 0 to 50°C
±0.5°C
at all other temperatures
±2.5%RH
at 25°C, 10 to 85%RH
±4.0%RH
at 25°C, 0 to 10%RH or 85 to 99%RH
For temperatures other than 25 °C and between 0 °C and 80 °C, add ±0.1 %RH per degree difference from 25.
Humidity Hysteresis: ±1.5%RH or lower*1
Measurement Resolution 0.1°C 0.1%RH
Responsiveness 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

Wireless LAN Communication

TR-7wf

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

TR-7nw

100BASE-TX/10BASE-T (RJ45 Connector)
Protocol: HTTP*3, 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 (HHA-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: When used in environments where temperature and humidity are over the values of 50°C 75%, 60°C 50%, 70°C 35%, and 80°C 25%, sensor hysteresis may fluctuate by values greater than ±1.5%RH. Under certain circumstances, it may take some time to return to normal measurement capability.
  • *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. (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: We recommend using an operating system in the same language as the display language. Operation in different languages is not guaranteed.

If you are interested in purchasing or have any questions about our products, please contact your local distributor.