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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. Designed for durability, this rugged waterproof logger is ideal for long-term deployments in streams, lakes, and oceans (up to 400 foot depths). Data collection in the field has never been easier!
| 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 Off disabled in software. |
| 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, 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) |
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).