Data Loggers for Water Temperature in Oceans
Designed for durability, this rugged waterproof logger is ideal for long-term deployments in streams, lakes, and oceans (up to 400-foot depths), as well as in harsh environments. Data collection in the field has never been easier! The HOBO MX2203 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.
Underwater Data Logger HOBO MX2200 Series
The water temperature loggers of the HOBO MX2200 series allow the user convenient configuration and fast wireless downloads for the proven TidbiT and pendant loggers! Equipped with Bluetooth Low Energy (BLE), these models deliver high-accuracy temperature measurements directly to your iOS or Android mobile device. Thus, there is no need for a laptop or waterproof shuttle on-site.
Wireless Instrument for Water Temperature in 0ceans
The TidbiT MX Temp 400 (MX2203) is suitable for a variety of indoor, outdoor and underwater applications, in both fresh and saltwater, and as such particularly suited to long-term studies in oceans.
- Recording of water temperature
- Waterproof to 120m (400 feet)
- ±0.2 °C accuracy
- Large storage capacity for 96,000 readings
- LED alarm notifies you when the temperature exceeds set threshold
- Configuration and download via Bluetooth
- User-replaceable battery
- Water detection feature conserves battery life
Features TidbiT MX2203
Webinar: TidbiT and Pendant Water Temperature Loggers
Join the webinar and learn about the HOBO® MX2200 Series temperature data loggers. They bring convenient wireless setup and download to Onset's field-proven line of Pendant and TibiT loggers for measuring temperature in streams, lakes, oceans, air, and soil.
Configuration and Analysis with HOBOconnect
The HOBO MX2201 data logger requires the free HOBOconnect app and a compatible mobile device. This allows you to effortlessly configure the wireless data logger. Using the HOBOconnect app, you can easily download the values and temperature data recorded by your devices' sensors.
Configuration and download via web-based software - MX Gateway
The new MX Gateway automatically collects and transfers data from your MX Bluetooth data loggers directly into the cloud! The web-based HOBOlink® Software lets you manage your data loggers remotely, set alarm notifications and create custom dashboards, saving you time by reducing the need for on-site analysis. Find out more...Specifications TidbiT M400 (MX2203)
Data Logger MX2203 - Instrument for Water Temperature
| Monitoring Parameters | Temperature and water temperature |
| Operating Range | -20 °C to 50 °C |
| Wireless range | Approximately 30.5 m (100 ft) line-of-sight |
| Radio Power | 1 mW (0 dBm) |
| Log Interval | 1 second to 18 hours |
| Buoyancy (freshwater) | 3.1 g (0.11 oz) negative |
| Waterproof | up to 122 m |
| Memory | 96,000 measurements |
| Battery | CR2477, 3V lithium battery, user-replaceable |
| Battery Life | 3 year typical at 25 °C (77 °F) with a logging interval of 1 minute and Bluetooth always On 5 years typical at 25 °C (77 °F) with logging interval of 1 minute, and both Bluetooth & “Bluetooth Water Detection” always Off Faster logging and sampling intervals may impact battery life. |
| Time accuracy | ±1 minute per month at 25 °C (77 °F) |
| Memory download duration |
Approximately 45 seconds; can increase with distance between device and logger. |
| Wetted Materials | Polypropylene housing, EPDM O-ring, stainless steel screws, Santoprene® (TPE) boot |
| Size | 4.45 x 7.32 x 3.58 cm |
| Weight | 36.2 g |
| Protection class: | IP68 |
| For more detailed product specifications, please read the User’s Guide | |
Temperature sensor
| Temperature range | -20 °C to +70 °C (-4 °F to +158 °F) in air -20 °C to +50 °C (-4 °F to +122 °F) in water |
| Accuracy |
±0.25 °C from -20 °C to 0 °C |
| Resolution |
0.01 °C |
| 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 |
