A waterproof logger that uses the power of Bluetooth to deliver accurate temperature measurements straight to your mobile device or Windows computer running Onset's free HOBOconnect app. Designed for durability, this compact logger is ideal for measuring temperature in streams, lakes, oceans, and soil environments. Data collection in the field has never been easier!
Mounting Requirements:It is very important that the logger housing does not get distorted when mounted. When mounting these loggers to any non-flat surface, such as rebar or posts, we recommend using the Mounting Boot (BOOT-MX2201-2202). This boot is also useful for mounting loggers so they can be easily removed for service.
Important Info
Requires HOBOconnect app and compatible mobile device or Windows computer. System requirements can be found at the bottom of the HOBOconnect software page.
Features & Benefits
Convenient wireless setup and download via Bluetooth
Large memory stores 96,000 measurements
Waterproof to 30 meters (100 feet)
User-replaceable battery
Mounting tabs for fast, easy deployment
LED alarm notifies you when the temperature exceeds the set threshold
Works with Onset’s free HOBOconnect app
±0.5°C (±0.9°F) accuracy
In what environment does this data logger operate?
This data logger operates in indoor, outdoor, and water environments.
The MX2201 data logger supports the following measurements: Soil Temperature, Temperature, and Water Temperature
Specifications for the MX2201
Temperature Sensor (MX2201 and MX2202)
Range: -20° to 70°C (-4° to 158°F) -20° to 50°C in water (-4° to 122°F in water)
Accuracy: ±0.5°C from -20° to 70°C (±0.5°C from -4° to 158°F)
Resolution: 0.04°C (0.072°F)
Response Time: 17 minutes typical to 90% in air moving 1 m/s, unmounted 7 minutes typical to 90% in stirred water, unmounted
Logger
Logger Operating Range : -20° to 70°C in air (-4° to 158°F in air)
Buoyancy (Fresh Water): 2 g positive (0.07 oz positive)
Waterproof: To 30.5 m (To 100 ft)
Radio Power: 1 mW (0 dBm)
Transmission Range : Approximately 30.5 m line-of-sight (Approximately 100 ft line-of-sight)
Wireless Data Standard: Bluetooth Low Energy (Bluetooth Smart)
Logging Rate: 1 second to 18 hours
Battery: CR2032 3V lithium, user replaceable
Memory: 96,000 measurements
Full Memory Download Time: Approximately 45 seconds; may take longer the farther the device is from the logger
Wetted Materials: Polypropylene case, EPDM O-ring
Dimensions: 3.35 x 5.64 x 1.8 cm (1.32 x 2.22 x 0.69 inches)
What does the HOBO Pendant MX Water Temperature Data Logger measure and record?
The HOBO Pendant MX Water Temperature Data Logger measures soil temperature, water temperature, and temperature. The logger stores up to 96,000 measurements.
Where can the HOBO Pendant MX Water Temperature Data Logger be used?
The HOBO Pendant MX Water Temperature Data Logger operates in indoor, outdoor, soil, and water environments, including streams, lakes, and oceans.
How does the HOBO Pendant MX Water Temperature Data Logger transfer data?
The HOBO Pendant MX Water Temperature Data Logger transfers data wirelessly through Bluetooth Low Energy to a compatible mobile device or Windows computer running the free HOBOconnect app.
How deep can the HOBO Pendant MX Water Temperature Data Logger be placed in water?
The HOBO Pendant MX Water Temperature Data Logger is waterproof to 30.5 meters, or 100 feet. The temperature sensor operates in water from -20°C to 50°C, or -4°F to 122°F.
How should the HOBO Pendant MX Water Temperature Data Logger be mounted on a non-flat surface?
The HOBO Pendant MX Water Temperature Data Logger should use the Mounting Boot, model BOOT-MX2201-2202, when mounted to non-flat surfaces such as rebar or posts. The mounting boot helps prevent housing distortion and supports easy removal for service.
How accurate are temperature readings from the HOBO Pendant MX Water Temperature Data Logger?
The HOBO Pendant MX Water Temperature Data Logger provides temperature accuracy of ±0.5°C, or ±0.9°F, across the stated sensor range.
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