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The HOBO MX2204 TidbiT waterproof temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver high-accuracy temperature measurements straight to your iOS or Android mobile device. Designed for durability, this rugged waterproof logger is ideal for long-term deployments in streams, lakes, and oceans. Data collection in the field has never been easier!
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A waterproof temperature logger that uses the power of Bluetooth to deliver high-accuracy data straight 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. Also includes a 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!
Highlighted Features
In what environment does this data logger operate?
This data logger operates in indoor, outdoor and underwater environments.
What measurements does this data logger support?
The MX2204 data logger supports the following measurements: Temperature and Water Temp
| Temperature Sensor (MX2203 and MX2204) | |
|---|---|
| Range | MX2203: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in water
MX2204: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in water, maximum sustained temperature in water 30°C (86°F) |
| 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) |
| Response time |
15 minutes typical to 90% in air moving 1 m/s, unmounted;
4 minutes typical to 90% in stirred water, unmounted |
| Drift | < 0.1°C (0.18°F) per year |
| 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 MX2204: 7.6 g (0.27 oz) negative |
| Waterproof: | MX2203: To 122 m (400 ft) MX2204: To 1,524 m (5,000 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 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. |
| 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 : | MX2204: Epoxy case, Santoprene (TPE) boot |
| Dimensions: | MX2204: 4.06 x 6.99 x 3.51 cm (1.6 x 2.75 x 1.38 inches) |
| Weight: | MX2204: 32.8 g (1.16 oz) |
| 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. | |
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