Phone: 253-927-6186

TR-73U Data Logger

TR-73U Three channel temperature, humidity and ambient pressure data logger.
TR-73U Three channel data logger measuring and recording temperature, humidity (RH), and barometric pressure. The compact, lightweight model is designed for low energy consumption for longer battery life.
In addition, this logger has easy-to-use software and a USB connection.
The product is an all-in-one package that includes the data logger unit, sensor and software.
Simply by connecting to a computer and carrying out a few easy steps, the measurement and recording of data can be started.

TR-73U Data Logger

Model  Description 
TR-73U   Temperature, humidity and ambient pressure data logger.

The TR-73U has all the great features of temperature and humidity data logger plus a third channel for monitoring and recording ambient pressure.
This compact unit has a large 4 digit LCD display for reading current values that can be set to show any single channel, or all three on a rotating basis.
The logger can store up to 8,000 sample triplets, operates on a single AA battery and incorporates a USB interface for rapid data downloading.
The TR-73U ships complete with software, sensor and cable included.

Data logger specifications
Measurement Channel
3 Channel
Measurement Item
Barometric Pressure
Internal Temperature Sensor
-10 to 60°C
Internal Barometric Pressure Sensor
750 to 1100 hPa
External Temperature Sensor
0 to 50°C
External Humidity Sensor
10 to 95%RH
Option Sensor
-40 to 110°C
Temperature Measurement Accuracy
(Standard Sensor)
Average ±0.3°C(0 to 50°C)
Humidity Measurement Accuracy
(Standard Sensor)
(At 25°C 50%RH)
Barometric Pressure Measurement
Temperature Measurement
Resolution Display
Humidity Measurement
Resolution Display
Barometric Pressure Measurement
Resolution Display
Temperature Sensor
Humidity Sensor
Macromolecular Humidity Sensor
Barometric Sensor
Barometric Pressure
Recording Interval
Total of 15 choices
Recording Capacity
8,000 Readings x 3 Channels
Recording Method
Endless (Overwrite from the oldest data when
recording  capacity is full)
One time Method (Stop recording when recording
capacity is full)
LCD Display
Measurements (Ch1 only, Ch2 only, Ch3 only,
alternating display),
Recording Status, Battery Life Warning,
Amount of Recorded Data, Unit of Measurement
AA Alkaline battery (LR6)
Battery Life
About 10 month *2
Data Back-up
Activated when battery power is low or when switch is off (about 1 year)
USB Communication Cable
USB Communication time
When downloading (1 unit of full data-about 8 seconds)
H55mm x W78mm x D18mm
About 62g (Including AA alkaline battery)
Working Environment for Main Unit
Temperature: -10 to 60°C
Humidity: under 90%RH (without condensation)
Attached Sensors
TR-3100 x 1

*2: Battery life depends upon the measuring environment, recording interval, and quality of the battery being used.
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Hotek Technologies, Inc
tel: 253-927-6186