TR73U Temp & Humidity Data logger” name
“TR-73U has a total of three channels: one temperature, one humidity, and one barometric pressure channel. This compact, lightweight model has been designed with low energy consumption for longer battery life; coupled with its easy-to-use software and USB connection makes this product the foundation of our Thermo Recorder line.
The product is an all-in-one package that includes the data logger unit, sensor and software. Simply by connecting to a PC via a USB connection and carrying out a few easy steps, the measurement and recording of data can be started.
Sensor TR-3100 (External) (*1) Barometric Pressure Sensor (Internal)
Thermistor Polymer Resistance
Measurement Channels Temperature 1ch Humidity 1ch Barometric Pressure 1ch
Units of Measurement °C, °F %RH hPa
Measurement Range 0 to 50°C (Supplied Sensor)
-40 to 110°C (Optional Sensor) 10 to 95 %RH 750 to 1100 hPa
Accuracy Avg. ± 0.3°C [0 to 50°C] ±5 %RH
[at 25 °C, 50 %RH] ±1.5 hPa
Measurement Resolution 0.1°C 1 %RH 0.1 hPa
Responsiveness Response Time (90%): Approx. 7 min. 4 seconds or 40 seconds if recording interval is 10 sec. or more.
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)
LCD Display Items Measurements (fixed or alternating display), Battery Warning Mark, etc.
Communication Interfaces USB Communication, Serial Communication (RS-232C) (*2)
Power AA Alkaline Battery (LR6) x 1
Battery Life (*3) Approx. 10 months
Dimensions H 55 mm x W 78 mm x D 18 mm
Weight Approx. 62 g (including battery)
Operating Environment Temperature: -10 to 60 °C
Humidity: 90 %RH or less (no condensation)
Accessories Temperature/Humidity Sensor (TR-3100) x 1
AA Alkaline Battery (LR6), USB Communication Cable (US-15C), Software (CD-ROM), User’s Manual Set (Warranty Included)
*1 : 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 : Customers wishing to write their own software, please contact your local distributor for the serial communications protocol specifications. (Note: Optional serial communication cable TR-07C is also required.)
*3 : Battery life varies depending upon the ambient temperature in which it is used, the recording interval, the frequency of communication, and the 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.” spec