TandD RTR-574

  • Records luminence, UV, temperature and humidity
  • Luminosity range 0 -130k lx
  • UV range 0 – 30 mw/cm2
  • Internal exposure accumulation
  • Cosine corrected readings
  • Temperature measuring range: -0°C to 55°C
  • Humidity measuring range: 10% to 95% RH
  • External sensors included
  • Wireless interface – compatible with 500 Series data collectors
  • 8,000 point/channel memory
  • Multi-function display
  • WebStorage Service available
  • Additional Base Station required for communication


Additional Equipment Required


The TandD RTR-574 Wireless Temperature Humidity Light Data Logger

The RTR-574 Wireless Temperature Humidity Light Data Logger includes two sensors that simultaneously measure and record illuminance / UV intensity and temperature/humidity. This Data Logger allows for the measuring and recording of the above items in various places such as facilities where people gather, where important documents and fine arts are being stored or displayed, where food and drink are being stored. Also, cumulative illuminance and the cumulative amount of UV light can be easily viewed even without stopping recording.

View Recording Status on Easy-to-Read Display

The large display allows you to easily check the RTR-574’s recording status, battery status and remaining data capacity as well as all types of measurements.

View Cumulative Values

Besides measuring and recording Illuminance, UV, Temperature, and Humidity, the RTR-574 calculates and displays the “Cumulative Illuminance” and “Cumulative Amount of UV Light” during recording sessions.

  • Cumulative Illuminance Display Range: 0 to 90,000,000 1xh
  • Cumulative Amount of Ultraviolet Light Display Range: 0 to 62W/cm² * h

Note: * The cumulative values are for display only. They are not recorded.

Simple, Direct USB Connection

It is possible to connect an RTR-574 Wireless Temperature Humidity Light Data Logger directly to your computer with a USB cable. Data can be quickly and easily downloaded to your PC. If the computer has more than one USB port, it is possible to connect multiple RTR-574 Units to one computer at the same time.
Note: * This is not possible if your operating system is Windows XP.

Logging Capacity: 8,000 data sets

Up to 8,000 data sets can be stored in one logger. One data set consists of readings for all channels in that type of unit: Illuminance, UV intensity, Temperature, and Humidity.

Recording Mode (Endless / One Time)

Select the Recording Mode from Endless or One Time. When using Endless Mode, upon reaching the logging capacity the oldest data is overwritten and recording continues. When using One Time, upon reaching logging capacity recording automatically stops. When using RTR-500GSM, RTR-500NW or RTR-500AW as a Base Unit, only “Endless can be selected.

Illuminance Measurable in Wide Range

The Illuminance measurement range is from 0 to 130,000 lx; which means it is possible to measure in both dim moonlight and the bright summer sun. And with recording and display possible at a resolution down to 0.01 lx, measurements can be taken in conditions of even less light.

Button Operation Possible

The buttons on the face of the RTR-574 Wireless Temperature Humidity Light Data Logger make it possible to change the LCD display pattern, start and stop recording, make or change recording interval settings, and turn power ON or OFF. To prevent unexpected errors in button operation, you can use the software supplied with the Base Unit to lock the button operation.

The RTR-574 display can be changed as follows: Illuminance (lx, Klx)

>> UV Intensity (mW/cm2)
>> Temperature( °C, °F)
>> Humidity (%)
>> Cumulative Illuminance (lx-h, Klx-h,Mlx-h)
>> Cumulative Amount of Ultraviolet Light (mW/cm2 -h )
>> Back to the Alternate Display.

By pressing the Display Button it is possible to switch between continually viewing all items in a cycle or select only certain items for viewing.

Interval Button
Use this button to check the current Recording Interval and make any necessary changes to it.

Use this to start and stop recording

Up to Four Months of Operation on One Battery

Power is provided by one AA alkaline battery. If one RTR-574 at full logging capacity is downloaded once a day via wireless communication, the estimated battery life is about four months.
Note: * 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. All estimates are based on operations carried out with a new battery and are in on way a guarantee of actual battery life.

Possible to Adjust Measurements

An Adjustment Function has been included to aid in the adjustment of measurements. This Function can be set up with the “Adjustment Tools” application in the software supplied with the Base Unit.

View the RTR-500 Product Brochure (PDF) or the RTR-500 Overview Video.


Number of Channels 1 Ch
Unit of Measurement 1x, Klx
Measurement Range 0 to 130,000lx
Measurement Resolution Minimum: 0.01 lx
Measurement Accuracy 10 to 100,000 lx: ±5% (At 25°C, 50%RH)
Display Range of Cumulative Measurement 0 to 90,000,000 lx.h
Unit of Cumulative Measurement Cumulative Illuminance
lx.h, Klx.h, Mlx.h
UV Intensity
Number of Channels 1 Ch
Unit of Measurement mW/cm²
Measurement Range 0 to 30mW/cm²
Measurement Resolution Minimum: 0.001 mW/cm²
Measurement Accuracy 0.1 to 30 mW/cm²: ±5% (at 25°C, 50%RH) (*7)
Display Range of Cumulative Measurement 0 to 62W/cm².h
Unit of Cumulative Measurement Cumulative Amount of UV Light
mW/cm².h, W/cm².h
Number of Channels 1 Ch
Unit of Measurement °C, °F
Measurement Range 0 to 55°C
Measurement Resolution 0.1°C
Measurement Accuracy Avg: ±0.3°C
Number of Channels 1 Ch
Unit of Measurement %
Measurement Range 10 to 95%RH
Measurement Resolution 1%RH
Measurement Accuracy ±5% (At 25°C, 50%RH)
LCD Refresh Interval 1 second (At a recording Interval of 1 second) / 2 seconds (At a recording interval of 2 seconds or more)
Recording Intervals Select from 15 choices: 1, 2, 5, 10, 15, 20 and 30 sec. / 1, 2, 5, 10, 15, 20, 30 and 60 min.
Logging Capacity (*1) 8,000 data sets
Recording Modes (*2) ENDLESS (Overwrite oldest data when capacity is full) / ONETIME (Stop recording when capacity is full)
LCD Displayed Items (*8) Recording Status, Amount of Recorded Data, Communication Status, Recording Mode, Battery Life Warning, Unit of Measurement

Current Readings (Illuminance / UV Intensity / Temperature / Humidity), Cumulative Measurements (Cumulative Illuminance and Cumulative Amount of UV Light),

Communication Interfaces Short Range Radio, USB, RS-232C (Serial) Communication (*9)
Communication Time When downloading one Remote Unit at full storage capacity: Wireless Communication = about 4 min. (*4) / USB Communication = about 45 sec.
Radio Standard Specifications FCC Part15 Section247 / IC RSS-210 (Frequency Range: 902 to 928MHz) / ETSI EN 300 220(Frequency Range: 869.7 to 870MHz)
Wireless Transmission Range About 150 meters (500 ft) if unobstructed and direc
Power AA Alkaline Battery (LR6) x 1
Battery Life (*3) About 4 months
Dimensions H55mm x W78 mm x D18 mm (excluding protrusions) / Antenna Length: 60mm
Weight About 66g (including AA Alkaline Battery / excluding sensors)
Operating Environment Temperature : -10 to 60 °C / Humidity : 90%RH or less (no condensation)
Others In order to download data via wireless communication, it is necessary to purchase a Base Unit: RTR-500, RTR-500AW, RTR-500NW, or RTR-500DC
Not waterproof, moistureproof, or dustproof.

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:


Software Packages

RTR-500 GSM for Windows

  • RTR-500GSM Settings Utility
  • Temperature / Humidity Graph
  • Adjustment Tools

RTR-500W for Windows

  • RTR-500W Settings Utility
  • Temperature / Humidity Graph
  • Multi-Scale Graph
  • Data Download Tool
  • Adjustment Tools

RTR-500 for Windows

  • RTR-500 Settings Utility
  • RTR-500 for Windows
  • Temperature / Humidity Graph
  • Multi-Scale Graph
  • Adjustment Tools

RTR-500DC for Windows

  • RTR-500DC Settings Utility
  • RTR-500DC Manager
  • Temperature / Humidity Graph
  • Multi-Scale Graph
  • Data Download Tool
  • Adjustment Tools

“Settings Utility” Program makes Settings a Snap!

The Settings Utility application is used to take care of all Base Unit settings and registration of Remote Units and Repeaters. After having registered and placed the Remote Units and Repeaters in the field, it is possible to run communication tests to check signal strength between the various units to ensure stable communication.

Easy-to-Understand Operation Guide

The Operation Guide that is part of the software uses easy to understand terms to help lead you through all the necessary steps and setting procedures. If during setup you get confused or have trouble, just simply open the Operation Guide in the same on-screen window and make settings while consulting the Guide.

Difficult Cellular Phone Network Settings made Easy

When using the RTR-500GSM, we have included an “Initial Settings Wizard” which guides you through what otherwise would be the difficult process of setting up the unit for GSM network communication; just put in the SIM Card and turn on the Wizard.

Intuitive User-Friendly Graph Tools (Temperature / Humidity Graph and Multi-Scale Graph)

With either program you can view up to eight channels of data in one graph.The Graph programs intuitive operation allows the User to easily hide or view channels, zoom in and out on data, switch back and forth from °C to °F, and view data in table form.

View in Table Form

Graph data can be easily viewed as a data list. The highest and lowest values are shown in easily distinguishable colors.

From Graph Editing to Data Analysis

It is possible to hide, re-order and delete channels, edit recording start times, and make changes to colors used for the graph scale lines, data lines and background.
Also move the A and B cursor at the bottom of the graph to view data readings for those points and the calculated difference between the points.By saving graph data as CSV Format Text File data, that data can then be uploaded into
common spreadsheet software for data analysis.

Remote Unit Adjustment Settings

When using multiple measuring devices, this function allows the user to correct for inaccuracies found in measured values when compared to a standard measurement (the value measured by the standard device). Measurements can be adjusted and recorded based on a standard
measurement. The RTR-500 Series Software allows for adjustment settings to be made to Remote Unit measurements by simply selecting the adjustment method from either “1 Point Adjustment” or “2 Point Adjustment” and entering the values for “Before Adjustment” and “After Adjustment”.