Onset HOBO MX Temp/RH Logger
Features
- Stores 84,000 measurements
- Easy to deploy and offload using the free HOBOconnect app
- Visual and audible high & low alarm thresholds
- Expedited repair and warranty service
- Lifetime technical support
- More
Onset's HOBO MX1101 data logger measures and transmits temperature and relative humidity data wirelessly to mobile devices or Windows computers via Bluetooth Low Energy (BLE) technology.
The self-contained wireless data logger works with your mobile device or Windows computer and Onset's free HOBOconnect app so you can configure the logger and read out data over a 100-foot range, with no other dedicated equipment required. Using Onset's free app, you can also view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files.
Add the MX Gateway for remote access to your data in Onset's cloud-based HOBOlink software.
Temperature Sensor | |
Range | -20° to 70°C (-4° to 158°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%, non-condensing |
Accuracy | ±2.0% from 20% RH to 80% RH typical to a maximum of ±4.5% including hysteresis at 25˚C (77˚F); below 20% RH and above 80% RH ±6% typical |
Resolution | 0.01% |
Drift | <1% per year typical |
Response Time | |
Temperature | 7:30 minutes in air moving 1 m/s (2.2 mph) |
RH | 20 seconds 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 | -20° to 70°C (-4° to 158°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 |
Restart Mode | Push button |
Time Accuracy | ±1 minute per month at 25°C (77°F) |
Battery Life | 1 year, typical with logging interval of 1 minute. Faster logging and/or statistics sampling intervals, entering burst logging mode, and remaining connected with the app will impact battery life. Excessive readouts, audible alarms, and paging all impact battery life. Visual alarms and other events can have a marginal impact on battery life. |
Battery Type | Two AAA 1.5 V alkaline batteries, user replaceable |
Memory | 128 KB (84,650 measurements, maximum) |
Full Memory Download Time | Approximately 60 seconds; 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 | 3.66 x 8.48 x 2.29 cm (1.44 x 3.34 x 0.9 in.) |
Weight | 56 g (1.98 oz) |
Environmental Rating | IP50 |
- HOBO MX1101 Temp/RH Data Logger
- Command strip
- Double-sided tape
- Hook & loop strap
- Two AAA 1.5 V alkaline batteries
In The News
Applied Research and Innovative Solutions: Creating CHNGES at Western Kentucky University
Long-standing environmental monitoring programs have the power to support a large number of research initiatives and policy changes—however, actually starting these networks can prove challenging. Not only is starting the program difficult, but keeping things operational for decades to come has also been challenging for environmental professionals hoping to make an impact with applied research. 
 
Jason Polk, Professor of Environmental Geoscience and Director of the Center for Human GeoEnvironmental Studies (CHNGES) at Western Kentucky University, is all too familiar with this process.
Read MoreCombating Water Insecurity in Saskatchewan with Real-Time Data
The prairies of Saskatchewan can be described as one of the least water-secure parts of Canada, making water quality monitoring essential for informed resource management in a region already facing water insecurity. While natural physical properties worsen some of the poor water quality conditions in the region, others are connected to land use. 
 
Having grown up spending summers on the shores of Lake Huron, Helen Baulch, an associate professor at the School of Environment and Sustainability at the University of Saskatchewan , has always been dedicated to the protection of water resources. 
 
Looking back fondly at her childhood playing along the shore, Baulch also recalls the invasion of quagga mussels during her teenage years and watching the lake change as a result.
Read MoreSeametrics Turbo Turbidity Logger: Boost your Turbidity Monitoring
The Seametrics Turbo Turbidity Logger is a self-cleaning turbidity sensor capable of internally logging over 260,000 data records. The sensor enables researchers, compliance officers, and contractors to monitor turbidity in various applications, from construction and dredging sites to wastewater effluent. 
 
 Due to its narrow width, this device can be deployed in a range of areas, from small well spaces to rivers and streams. The stainless steel housing and built-in wiper allow the sensor to withstand long-term deployments and reduce the need for maintenance trips. 
 
 The logger accurately records temperature and turbidity up to a depth of 50 meters.
Read More