Wireless CO2 LoggerWireless CO2 Logger

Wireless CO2 Logger

  • TandD - RTR-576 - RTR-576-S
  • Channels: CO2 concentrantion, temperature, humidity
  • CO2: 0 to 9999ppm
  • Temperature: 0 to 55°C
  • Humidity: 10 to 95%RH

Can we help you?


Model : RTR-576

  • CO2: 0 to 9999ppm
  • Temperature: 0 to 55°C
  • Humidity: 10 to 95%RH


Model : RTR-576-S

  • CO2: 0 to 9999ppm
  • Temperature: -25 to 70°C
  • Humidity: 0 to 99%RH(-20°C~)

The RTR-500/RTR500B series allows you to mix and match an array of wireless radio communication loggers with various Base Units or Data Collectors to meet your needs.

Logged data can be automatically sent via network or mobile communication to be saved in cloud storage or to a specified location.

The RTR-576 is a three-channel data logger designed to measure and record CO2 concentration, temperature and humidity.

External devices such as buzzers and lights can also be connected to the contact output terminal to provide instant on-site notification, signaling when ventilation may be needed.

RTR-576 loggers have a wireless radio communication range with compatible base units of up to 150m (500ft). Data can be transmitted from a logger to a base unit and then automatically uploaded to cloud storage or saved to a specified location.

Data can also be checked on your PC screen or on site with one of our compatible data collectors. RTR-576 is useful for measuring and managing CO2 in rooms and buildings from both near and far.

RTR-500 Series Features

  • Remotely access your data over the internet for free.
  • Take control and ownership of your data using free issued offline analytical and archiving utilities.
  • Wide range of communication devices including the RTR500-DC handheld data collector for performing spot checks and analysis.
  • Robust and durable design.
  • Accurate and can be recalibrated.
  • User replaceable battery.
  • Optional GxP Validation service including installation.

RTR-576 / 576-S Specifications




Temperature-Humidity Sensor

Measurement Channels

Temperature 1ch

Humidity 1ch

Temperature 1ch

Humidity 1ch



SHA-3151 High-Precision Type


Polymer Resistance


Polymer Resistance

Measurement Units

°C, °F


°C, °F


Measurement Range (*2)

0 to 55 °C

10 to 95%RH

-25 to 70 °C

0 to 99 %RH (*3)


±0.5 °C

5 %RH

at 25 °C,

50 %RH


at 10 to 40 °C


all other temperatures

±2.5 %RH

at 15 to 35 °C,

30 to 80 %RH

Measurement Resolution

0.1 °C

1 %RH

0.1 °C

0.1 %RH


Response Time (90%): Approx. 7 min.

Response Time (90%): Approx. 7 min.


CO2 Sensor (Internal)

Measurement Channels

CO2 Concentration 1ch



Measurement Channels

CO2 Concentration 1ch

Measurement Units


Measurement Range

0 to 9,999 ppm


±(50 ppm + 5% of reading) at 5,000 ppm or less (*1)

Measurement Resolution

Minimum of 1 ppm


Response Time (90%): Approx. 1 min.

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 (*4)

Endless (Overwrite oldest data when capacity is full) or One Time (Stop recording when capacity is full)

LCD Display Items

Measurements, Battery Level, etc.

Measurements: CO2 concentration, Temperature or Humidity (fixed or alternating display)

Communication Interfaces

Short Range Wireless Communication

<For US>

Frequency Range: 902 to 928MHz Power: 7mW

Transmission Range: About 150 meters (500 ft) if unobstructed and direct

<For EU>

Frequency Range: 869.7 to 870MHz RF Power: 5mW

Transmission Range: About 150 meters (500 ft) if unobstructed and direct USB 2.0 (Mini-B connector)

Serial Communication: RS-232C (*4)

Wireless Transmission Range

Approx. 150 meters (500 ft) if direct and unobstructed

External Alarm Terminal (*6)

Output Terminal: Open Drain Output

(Voltage when OFF: DC less than 30V / Current when ON: less than 0.1A / Resistance when ON: about 15 )


AC Adaptor AD-06A1 or AD-06C1, AA Alkaline Battery LR6 x 4

Battery Life (*7)

Approx. 2 days (batteries only without AC adaptor)


H 96 mm x W 66 mm x D 46 mm Antenna Length: 60 mm


Approx. 125 g

Operating Environment

Temperature: 0 to 45°C

Humidity: 90 %RH or less (no condensation)


Temperature-Humidity Sensor THA-3001

High Precision Temperature-Humidity Sensor SHA-3151

AA Alkaline Battery LR6 x 4, AC Adaptor AD-06A1 or AD-06C1, USB Mini-B Cable US-15C, Software CD-ROM, User’s Manual Set (Warranty Included)

Compatible Base Units


RTR-500, RTR-500NW/500AW, RTR-500DC, RTR-500MBS-A

*1: Stated value is the measurement accuracy of the CO2 sensor when Auto Calibration is operating properly. A change in atmospheric pressure directly influ- ences the reading of CO2, which can cause measurement errors; a decrease in pressure by 10hPa results in a relative decrease in CO2 by 1.6%. In such a case, we recommend carrying out the “Atmospheric Pressure Correction” function found in CO2 Recorder for Windows.

*2: Make sure to use the data logger within the operating environment as listed in the specifications.

*3: When continually used in environments with temperatures above 60°C, accuracy of humidity measurements will decrease over time. Also, humidity cannot be measured at temperatures below -20°C.

*4: Only “Endless” is available when using the RTR500BW, RTR500BM, RTR-500NW/AW or RTR-500MBS-A as a Base Unit. *5: For communication with the Data Collector RTR-500DC (Note: Optional serial communication cable TR-6C10 is required.) *6: In order to use the external alarm terminal, please prepare a compatible connector: JST PAP-04V-S.

*7: Battery life varies depending upon multiple factors including ambient temperature, radio environment, recording interval, frequency of communication, 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. The specifications listed above are subject to change without notice.