Onset's HOBO MX1102 CO2 logger makes it more convenient than ever to measure and record CO2 in buildings and other non-condensing environments. It measures CO2 from 0–5,000 parts per million (ppm) – and our free HOBOconnect app lets you access data right from your mobile phone or tablet within a 100-foot range of the logger.
The MX1102 also features a USB port so it can be used with a computer running HOBOware graphing & analysis software.
Add the MX Gateway for remote access to your data in Onset's cloud-based HOBOlink software.
Manufactured by: Onset
Model: HOBO MX1102A Carbon Dioxide - Temp - RH Data Logger
Carbon DIoxide
Dew point
Relative humidity
Temperature
Temperature Sensor | |
Range | 0° to 50°C (32° to 122°F) |
Accuracy | ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F) |
Resolution | 0.024°C at 25°C (0.04°F at 77°F) |
Drift | <0.1°C (0.18°F) per year |
RH Sensor | |
Range | 1% to 90% RH (non-condensing) |
Accuracy | ±2% from 20% to 80% typical to a maximum of ±4.5% including hysteresis at 25°C (77°F); below 20% and above 80% ±6% typical |
Resolution | 0.01% |
Drift | <1% per year typical |
CO2 Sensor | |
Range | 0 to 5,000 ppm |
Accuracy | ±50 ppm ±5% of reading at 25°C (77°F), less than 90% RH non-condensing and 1,013 mbar |
Warm-up Time | 15 seconds |
Calibration | Auto or manual to 400 ppm |
Non-linearity | <1% of FS |
Pressure Dependence | 0.13% of reading per mm Hg (corrected via user input for elevation/altitude) |
Operating Pressure Range | 950 to 1,050 mbar (use Altitude Compensation for outside of this range) |
Compensated Pressure Range | -305 to 5,486 m (-1,000 to 18,000 ft) |
Sensing Method | Non-dispersive infrared (NDIR) absorption |
Response Time | |
Temperature | 12 minutes to 90% in airflow of 1 m/s (2.2 mph) |
RH | 1 minute to 90% in airflow of 1 m/s (2.2 mph) |
CO2 | 1 minute to 90% in airflow of 1 m/s (2.2 mph) |
Logger | |
Radio Power | 1 mW (0 dBm) |
Transmission Range | Approximately 30.5 m (100 ft) line-of-sight |
Wireless Data Standard | Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) |
Logger Operating Range | 0° to 50°C (32° to 122°F); 0 to 95% RH (non-condensing) |
Logging Rate | 1 second to 18 hours |
Logging Modes | Fixed interval (normal, statistics) or burst |
Memory Modes | Wrap when full or stop when full |
Start Modes | Immediate, push button, date & time, or next interval |
Stop Modes | When memory full, push button, date & time, or after a set logging period |
Time Accuracy | ± 1 minute per month at 25°C (77°F) |
Power Source | 4 AA 1.5 Volt batteries (user replaceable) or USB power source (5 V DC, 2 Watts) |
Battery Life | 6 months, typical with logging and sampling intervals of 5 minutes or slower; 6 months or less with logging and sampling intervals faster than 5 minutes while logging CO2. Entering burst logging mode will impact battery life. With app use, battery life can be reduced by remaining connected, excessive readouts, audible alarms, and paging. Visual/audible alarms and other events can have a marginal impact on battery life. |
Memory | 128 KB (84,650 measurements, maximum) |
Download Type | USB 2.0 interface or via Bluetooth Smart |
Full Memory Download Time | 20 seconds via USB; approximately 60 seconds via Bluetooth Smart, may take longer the further the device is from the logger |
LCD | LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range |
Size | 7.62 x 12.95 x 4.78 cm (3.0 x 5.1 x 1.88 inches) |
Weight | 267.4 g (9.43 oz) |
Environmental Rating | IP50 |
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |