The HOBO MX2201 water temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature measurements straight to your iOS or Android mobile device. Designed for durability, this compact waterproof logger is ideal for measuring temperature in streams, lakes, oceans, and soil environments. 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 MX2201 data logger supports the following measurements: Temperature and Water Temp
Specifications
Temperature Sensor (MX2201) | |
Range | -20° to 70°C (-4° to 158°F) in air -20° to 50°C (-4° to 122°F) in water |
Accuracy | ±0.5°C from -20° to 70°C (-4° to 158°F) |
Resolution | 0.04°C (0.072°F) |
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 |
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) in air |
Logging Rate | 1 second to 18 hours |
Buoyancy (Fresh Water) | 2g (0.07 oz) positive |
Waterproof | To 30.5 m (100 ft) |
Memory | 96,000 measurements |
Battery | CR2032 3V lithium, user replaceable |
Battery Life | 1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On in software. 2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off 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. |
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 | Polypropylene case, EPDM O-ring |
Dimensions | 3.35 x 5.64 x 1.8 cm (1.32 x 2.22 x 0.69 inches) |
Weight | 12.75 g (.45 oz) |
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