TandD TR-72WF-S

  • 2 Channel temperature measurement
  • External thermistor temperature sensor
  • Measuring Range: -30°C to 80°C
  • Humidity Range: 0 to 99% RH
  • Logging capacity: 8,000 data sets
  • Measurement resolution: 0.1°C and 0.1% RH
  • Comm interfaces: wireless LAN, USB
  • View data on mobile devices via Thermo App
  • WebStorage Service available

The 72–WF-S has been replaced by the new 72–WB-S and we recommend the 72–WB-S for all new customers. The 72-WB-S provide additional capabilities at the same price – click here for the 72-WB-S.

There are limited quantities of the 72-WF-S still available. If you are still interested in purchasing this model, please call us at 1-800-956-4437 or email us at sales@dataloggerinc.com for pricing and delivery information.

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The TR-72wf-S WiFi Temperature Humidity Data Logger

The TR-72wf-S WiFi Temperature Humidity Data Logger is a high precision two-channel model with an external thermistor sensor and a measuring range of -25 to 70°C and a humidity range of 0 to 99%RH. In addition to the standard features such as battery operation and USB communication (through optional cable, sold separately), the TR-72wf-S supports communication with mobile devices. By using T&D’s WebStorage Service, users can access stored data anytime from the cloud.

Access to Recorded Data

By using a wireless LAN, data is automatically uploaded to the WebStorage Service (registration required). The service can be used with mobile devices such as smartphones and tablets allowing users to monitor current readings, alerts and downloading of data. The ThermoWeb application must be downloaded and installed on any mobile device. Data can also be downloaded to a PC with a USB communication cable (sold separately).

View the TR-7x Product Brochure (PDF) or the TR-7wf/nw Series Overview Video.


TR-71wf TR-72wf TR-72wf-S
Sensor (External) (*1) TR-0106 THA-3001 HHA-3151(High-Precision Type)
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 -40 to 110 °C (Supplied Sensor)

-60 to 155 °C (Optional Sensor: Fluoropolymer Coated Type)

0 to 55 °C 10 to 95 %RH -25 to 70 °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 °C, 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 Wireless LAN Communication

• Standard: IEEE 802.11b

• Security
: WEP (64bit/128bit), WPA-PSK(TKIP), WPA2-PSK(AES)

• WPS 2.0 : Push Button Configuration

• Protocol: HTTP, 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)
Battery Life
With wireless 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)Without wireless LAN communication: Approx. 1.5 years
Dimensions H 58mm x W 78mm x D 26mm
Weight Approx. 100g (including batteries)
Operating Environment Temperature: -10 to 60 °C

Humidity: 90 %RH or less (no condensation)

Accessories 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)
  • *1
    : With the TR-71wf, it is also possible to measure temperature
    with the internal sensor. However, the measurement range is restricted
    to the operating environment for the whole device.
  • *2
    : 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.
  • *3
    : 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
  • *4
    : Optional USB Mini-B Cable US-15C is required for USB
  • *5
    : Battery life varies depending upon the frequency of
    communication, wireless 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.


  • 1. Sensor Jack
  • 2. Power Button
  • 3. Display Button
  • 4. Interval Button
  • 5. Rec/Stop Button
  • 6. USB Port
  • 7. Battery Cover


WebStorage Service

Free Online Service for Cloud Data Storage

It’s never been so easy to share your recorded data via the Internet! T&D’s free WebStorage Service is perfect for processing and managing data recorded in remote places or for allowing several people to view the same recorded data at their convenience. Users can check the current conditions of data loggers such as battery level and radio signal strength between the Base Unit and Remote Unit. Recorded data can be transmitted to the WebStorage Service from any compatible Tamp;&D product. Data storage capacity is 20MB.

Additionally, the data transmitted to T&D WebStorage Service can be accessed via your browser from anywhere, anytime, as long as an internet connection is available. Mobile device apps are also available for devices running iOS and Android.

Compatible Products

Users can setup automatic data transmission from the following T&D products to the WebStorage Service:

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