Indoor Carbon Dioxide Data Logger

Indoor Carbon Dioxide Data Logger



TandD Logger Measuring and Recording Carbon Dioxide, Temperature and Humidity


  • Measures and Records Carbon Dioxide (CO2), Temperature and Humidity in Indoor Environments
  • 0 to 5,000 ppm (CO2), 0°C to 45°C (Temp) and 10 to 90% RH (Humidity) Measurement Ranges
  • Programmable Alarms and Contact Closure Output
  • Large LCD Display will Cycle Through all Three Measurements
  • Perfect for Air Quality Monitoring and IAQ Auditing


Data Channels 1 Carbon Dioxide Channel (Internal)
1 Temperature Channel (External)
1 Humidity Channel (External)
Carbon Dioxide Range: 0 to 5,000 ppm (Display Range Up to 9,999 ppm) 
Accuracy: ±50 ppm + 5% of Reading @ < 5,000 ppm 
Resolution: 1 ppm 
Response Time: 15 Minutes (to 90%)
Sensor: NDIR (Non-Dispersive Infrared)
Temperature Range: 0°C to 45°C (32°F to 113°F) 
Accuracy: ±0.5°C
Resolution: 0.1°C 
Response Time: 7 Minutes (to 90%)
Sensor: Thermistor
Humidity Range: 10 to 90% RH 
Accuracy: ±5.0% RH @ 25°C
Resolution: 0.1% RH 
Response Time: 7 Minutes (to 90%)
Sensor: Polymer Resistance Type
Data Storage Capacity 8,000 Carbon Dioxide, Humidity and Temperature Readings
Sampling Interval 1, 2, 5, 10, 15, 20, 30 Seconds
1, 2, 5, 10, 15, 20, 30, 60 Minutes
Recording Modes Endless: Overwrites When Capacity is Full
One-Time: Stop Recording When Capcity is Full
LCD Display Recording Status, Amount of Recording Data, Communication Status, Recording Mode, Battery Level, Measurements, Unit of Measurement
Alarm Contact Closure Output, Open Drain Output (Voltage when Off: DC Less than 30 Volts; Current when ON: Less than 0.1 Amps; Resistance when ON: About 15Ω)
Power Source AC Power (Adapter Included)
(4) AA Alkaline Battery (User-Replaceable)
Battery Life Approximately 2 Days @ 25°C
Battery Classification Alkaline
Data Download USB: 45 Seconds for 8,000 Samples/Readings 
Infrared: 60 to 80 Seconds for 8,000 Samples/Readings
Interface USB Communications (USB Cable Included)
Serial Communications
Infrared Communications (Requires #TR-57DCI)
Software Compatibility MS Windows 7 (32 & 64 Bit), Vista and XP (32 Bit)
Standards Compliance CE, RoHS
Operating Environment Temperature: 0°C to 45°C (32°F to 113°F)
Humidity: 90% RH or Less (Non-Condensing)
Weight 214 grams (7.5 oz.)
Dimensions 96mm x 66mm x 46mm (3.8" x 2.6" x 1.8") w/o External Temp/RH Sensor