Onset HOBO MX Carbon Dioxide/Temp/RH Data Logger
Features
- Measurement range, 0-5,000 ppm
- Self-calibrating NDIR CO2 sensor technology
- Access data by mobile phone, tablet or computer within 100ft of logger
- Expedited repair and warranty service
- Lifetime technical support
- More
Onset’s HOBO MX1102 CO2 logger makes it more convenient than ever to measure and record CO2 in buildings and other noncondensing environments. It measures CO2 from 0 – 5,000 parts per million (ppm) – and our free HOBOconnect app allows you to access data right from your mobile phone or tablet within a 100-foot range.
The MX1102 also features a USB port so it can be used with a computer running HOBOware Pro graphing and analysis software.
Remotely access your data in Onset’s cloudbased HOBOlink software with the new MX Gateway.
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 |
- HOBO MX1102 CO2 Data Logger
- Four AA 1.5 V alkaline batteries
In The News
Lake Malawi: A Treasure to Protect
Lake Malawi (also known as Lake Nyasa and Lake Niassa) doubles as a Rift Valley Lake and one of the seven African Great Lakes. Due to its unique biodiversity, it’s a great place to conduct limnological studies. Harvey Bootsma is a professor for the School of Freshwater Sciences at the University of Wisconsin-Milwaukee and has had an interest in limnology ever since he was a kid. Bootsma fondly recalls summer vacations to Georgian Bay, Ontario, “I probably spent as much time in the water as I did out of it.” He continues,”I remember telling myself ‘I’m going to get a job where I can stay here all the time.’” While Harvey didn’t end up working on Georgian Bay, he was offered a job working on Lake Malawi. He continued working there while completing his Ph.D.
Read MoreMicrobes and Human Health: Aquatic Microbial Communities May Hold Clues about How Deadly Pathogens Spread
Aquatic ecosystems are incredibly complex, with many different biotic and abiotic factors constantly interacting. Microbial communities are a key part of aquatic ecosystems, involved in the constant flow of energy and recycling of organic matter, according to Science Direct . The true scope of microbial community impacts on aquatic ecosystems is still not entirely understood. Eric Benbow, a professor of community ecology at Michigan State University, is exploring how microbial communities and pathogens may be negatively impacting human health, and how a changing climate could worsen this problem. 
 How Do Pathogens Arise? 
 Benbow, along with his students and colleagues, are studying a realm of community ecology that is still relatively unknown.
Read MoreWinter 2023 Environmental Monitor Available Now
In this issue, we showcase researchers from across the globe and the importance of monitoring and protecting biodiversity in a variety of ecosystems. From endangered freshwater mussels across the U.S. to vegetation in the Amazon Rainforest , this latest edition highlights the importance of species of all sizes. Through monitoring various parameters, researchers spent the year gathering data and constructing management plans to protect these valuable species. 
 
Our writers also sought out science professionals that are dedicated to protecting nature’s most vulnerable through traditional and more contemporary methods.
Read More