Hobo Water Data Logger HOBO TidbiT MX Temperature 400' MX2203

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 On 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 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)

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