HOBO Pendant® MX Water Temperature Data Logger

Overview

  • The HOBO MX2201 waterproof temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature measurements straight to your mobile device with Onset's free HOBOconnect app. Designed for durability, this compact waterproof logger is ideal for measuring temperature in streams, lakes, oceans, and soil environments. Data collection in the field has never been easier! Add the MX Gateway for remote access to your data in Onset's cloud-based HOBOlink software (indoor deployments). 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-MX2201-2201). This boot is also useful for mounting loggers so they can be easily removed for service.
  • PART#

    MX2201 Bluetooth Low Energy (BLE)

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Temperature Sensor (MX2201 and MX2202)

Range

-20° to 70°C (-4° to 158°F) in air

-20° to 50°C (-4° to 122°F) in water

Accuracy

±0.5°C from -20° to 70°C (-4° to 158°F)

Resolution

0.04°C (0.072°F)

Drift

<0.1°C (0.18°F) per year

Response Time

17 minutes typical to 90% in air moving 1 m/s, unmounted

7 minutes typical to 90% in stirred water, unmounted

 

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) in air

Logging Rate

1 second to 18 hours

Buoyancy (Fresh Water)

2g (0.07 oz) positive

Waterproof

To 30.5 m (100 ft)

Memory

96,000 measurements

Battery

CR2032 3V lithium, user replaceable

Battery Life

1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On in software.

2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off in software.

Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.

To ensure proper battery installation, see Battery Information for detailed instructions on replacing the battery.

Time Accuracy

± 1 minute per month at 25°C (77°F)

Full Memory Download

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)

Weight

12.75 g (.45 oz)

 CE Compliant
 FCC Logo Australia/New Zealand General Compliance mark South Korea KC Certification for Electrical and Electronic Products Japanese Telecom and Radio Certification Mark

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

  • Highlighted Features 
    • Convenient wireless setup and download via Bluetooth Low Energy (BLE)
    • 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 temperature exceeds 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.

    What measurements does this data logger support?

    The MX2201 data logger supports the following measurements: Soil Temperature, Temperature and Water Temperature

In what environment does this data logger operate?

This data logger operates in an outdoor environment.

What measurements does this data logger support?

The MX2301A data logger supports the following measurements: Relative Humidity, Temperature and Dew Point