HOBO TidbiT MX Temperature 400' Data Logger

Overview

  • The HOBO MX2203 TidbiT waterproof temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver high-accuracy temperature measurements straight to your mobile device with Onset's free HOBOconnect app. Designed for durability, this rugged waterproof logger is ideal for long-term deployments in streams, lakes, and oceans (up to 400-foot depths). The HOBO MX2203 also provides the additional feature to detect and record the presence of water which is ideal for monitoring intermittent water applications. Data collection in the field has never been easier!
  • PART#

    MX2203 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 (MX2203)

Range

MX2203: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in water

Accuracy

±0.25°C from -20° to 0°C (±.45°F from -4° to 32°F)

±0.2°C from 0° to 70°C (±0.36°F from 32° to 158°F)

Resolution

0.01°C (0.018°F)

Drift

<0.1°C (0.18°F) per year

Response Time

MX2203: 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)

Logging Rate

1 second to 18 hours

Buoyancy (Fresh Water)

MX2203: 3.1 g (0.11 oz) negative

Waterproof

MX2203: To 122 m (400 ft)

Water Detection

Water conductivity level of 100 µS/cm or greater necessary for reliable detection of water. Deionized water or water below 100 µS/cm may not be detected.

The water conductivity circuit may not reliably detect water that has frozen around the electrodes, i.e. below 0°C (32°F).

Memory

96,000 measurements

Battery

CR2477 3V lithium, user replaceable in MX2203, non-replaceable in MX2204

Battery Life

3 years, typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On in software.
5 years, typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off or Bluetooth Off Water Detect 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 in the MX2203 logger.

Time Accuracy

± 1 minute per month at 25°C (77°F)

Full Memory Dowload

Approximately 45 seconds; may take longer the farther the device is from the logger

Wetted Materials

MX2203: Polypropylene case, Delrin® battery cover, EPDM O-ring, stainless steel screws, Santoprene® (TPE) boot

Dimensions

MX2203: 4.45 x 7.32 x 3.58 cm (1.75 x 2.88 x 1.41 inches)

Weight

MX2203: 36.2 g (1.28 oz)

Environmental RatingIP68
 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).

  • Highlighted Features 
    • Convenient wireless setup and download via Bluetooth Low Energy (BLE)
    • Large memory stores 96,000 measurements
    • Waterproof to 120 meters (400 feet)
    • Water detection feature records when logger is in and out of the water
    • User-replaceable battery
    • Waterproof boot protects the logger during deployment
    • LED alarm notifies you when temperature exceeds set threshold
    • Battery life extension feature
    • Works with Onset’s free HOBOconnect app
    • ±0.2°C (±0.36°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 MX2203 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