HOBO TidbiT MX Temperature 400′ Data Logger

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

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

MX2203: Polypropylene case, Delrin® battery cover, 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)