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New Product

Announcing our New High Precision Wide Range Temperature and Humidity Data Logger: TR-77Ui

Date Issued: December 11, 2009

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T&D Corporation is proud to announce that our new "High Precision Wide Range Temperature and Humidity Data Logger TR-77Ui" will be available from January 2010.

The TR-77Ui is our new temperature and humidity data logger designed to measure and record in a wider range with more precision than ever before. It reaches the high measurement accuracy of ±2.5%RH and can measure and record in the range of 0 to 99%RH ( at temperatures from -30 to 80°C).

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.


Application Examples

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Measurement Items Temperature Humidity
Number of Channels 1 Ch. 1 Ch.
Measurement Range *1 -30 to 80°C 0 to 99%RH
Measuring Accuracy *2 ±0.3°C (at 10 to 40°C)
±0.5°C (at other temp)
±2.5%RH (at 25°C and 10 to 85% RH)
±4.0%RH (at 25°C and 0 to 10%, or 85 to 99% RH)
When used at other than 25°C, add ±0.1%RH/°C to the accuracy noted above
Measurement / Display Resolution 0.1°C 0.1%RH
Sensor Platinum Resistor Sensor Capacitance Type
Recording Interval Total of 15 choices: 1,2,5,10,15,20,30 seconds, 1,2,5,10,15,20,30,60, minutes
Recording Capacity 8000 Readings×2 Channels
Recording Modes Endless (Overwrite oldest data when capacity is full)
One-time (Stop recording when capacity is full)
Power Source AA Alkaline Battery x 1
Battery Life *3 About 10 months
Interface USB Communication / Serial Communication *4
Weight About 62 g (including one AA battery)
Operating Environment Temperature: -10 to 60°C / Humidity: 90% RH or less (no condensation)
Attached Sensor HHA-3151: Temperature and Humidity Sensor x 1
Accessories included in package AA Alkaline Battery (LR6) x 1, USB Communication Cable (US-15C) x 1,
User's Manual (Warranty) x 1, Software Set x 1

*1: When using supplied sensor

*2: When used at temperatures equal to or higher than 0°C, the Humidity Measuring Accuracy will be as shown here.

*3: Battery life varies depending upon the type of battery, the measuring environment, the frequency of communication, and the ambient temperature in which it is used.

*4: The serial communication cable is optional. Also, in order to use serial communication it is necessary to use our communication protocol (contact your local dealer) to write your own software program.

Expected Release Date

January 2010