MX2203 HOBO TidbiT MX 400' Temperature Data Logger

General description

A waterproof temperature logger that uses the power of Bluetooth to deliver high-precision data directly to your mobile device or Windows computer running Onset's free HOBOconnect app. Designed for durability, this rugged logger is ideal for long-term deployments in streams, lakes, and oceans (up to 400 feet deep). It also includes a feature to detect and record the presence of water, which is ideal for monitoring intermittent water applications. Collecting data in the field has never been easier!

Characteristics

Convenient setup and wireless download via Bluetooth

Large memory stores 96,000 measurements

Water resistant up to 120 meters (400 feet)

The water detection function records when the logger is in and out of water.

Battery replaceable by user

Waterproof boot protects recorder during deployment

LED indicates when temperature exceeds set threshold

Battery life extension feature

Works with Onset's free HOBOconnect app

Accuracy of ±0.2°C (±0.36°F)

Specifications

Temperature Sensor

Range

-20° to 70°C in air; -20° to 50°C in water

-4° to 158°F in air; -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 per year

<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

Logger Operating Range

-20° to 70°C

-4° to 158°F

Buoyancy (Fresh Water)

3.1 g negative

0.11 oz negative

Waterproof

To 122 m

To 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).

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

Time Accuracy

±1 minute per month at 25°C

±1 minute per month at 77°F

Battery

CR2477 3V lithium, user replaceable

Battery Life

3 years, typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off disabled 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 enabled 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.

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

Dimensions

4.45 x 7.32 x 3.58 cm

1.75 x 2.88 x 1.41 inches

Weight

36.2 g

1.28 oz

Environmental Rating

IP68