HOBO by Onset MX2203 – TidbiT MX Temperature 400 Logger

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SKU: HOBO-by-Onset-MX2203
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HOBO by Onset MX2203 - TidbiT MX Temperature 400 Logger Specs

BrandKestrel
RangeMX2203: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in water   MX2204: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in water, maximum sustained temperature in water 30°C (86°F)
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)
Resolution0.01°C (0.018°F)
Drift<0.1°C (0.18°F) per year
Response TimeMX2203: 17 minutes typical to 90% in air moving 1 m/s, unmounted; 7 minutes typical to 90% in stirred water, unmounted   MX2204: 15 minutes typical to 90% in air moving 1 m/s, unmounted; 4 minutes typical to 90% in stirred water, unmounted
Logger Operating Range-20° to 70°C (-4° to 158°F)
Buoyancy (Fresh Water)MX2203: 3.1 g (0.11 oz) negative   MX2204: 7.6 g (0.27 oz) negative
WaterproofMX2203: To 122 m (400 ft)   MX2204: To 1,524 m (5,000 ft)
Water DetectionWater conductivity level of 100 μS/cm or greater necessary for reliable detection of water. Deionized wate r 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).
Radio Power1 mW (0 dBm)
Transmission RangeApproximately 30.5 m (100 ft) line-of-sight
Wireless Data StandardBluetooth Low Energy (Bluetooth Smart)
Logging Rate1 second to 18 hours
Time Accuracy±1 minute per month at 25°C (77°F)
BatteryCR2477 3V lithium, user replaceable in MX2203, non-replaceable in MX2204
Battery Life3 years, typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off disabled in software. 5 years, typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off or Bluetooth O ff Water Detect enabled in software. Faster logging intervals and statistic s 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.
Memory96,000 measurements
Full Memory Download TimeApproximately 45 seconds; may take longer the farther the device is from the logger
Wetted MaterialsMX2203: Polypropylene case, EPDM O-ring, stainless steel screws, Santoprene® (TPE) boot MX2204: Epoxy case, Santoprene (TPE) boot
DimensionsMX2203: 4.45 x 7.32 x 3.58 cm (1.75 x 2.88 x 1.41 inches)   MX2204: 4.06 x 6.99 x 3.51 cm (1.6 x 2.75 x 1.38 inches)
WeightMX2203: 36.2 g (1.28 oz)   MX2204: 32.8 g (1.16 oz)

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