Onset HOBO Pendant MX2201 Water Temperature Data Logger

SKU
MX2201
Manufacturer:
Onset
Onset

Key Features:

  • Convenient wireless setup and download via Bluetooth Low Energy (BLE)
  • Large memory stores 98,000 measurements
  • Waterproof to 30 meters (100 feet)
  • User-replaceable battery
  • Mounting tabs for fast, easy deployment
  • LED alarm notifies you when temperature exceeds set threshold
  • Works with Onset’s free HOBOmobile app
  • ±0.5°C (±0.9°F) accuracy
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Equipped with the power of Bluetooth Low Energy (BLE) the Onset HOBO MX2201 water temperature logger provides precision temperature measurement directly to iOS or Android mobile devices. Compact and rugged, the logger is perfect for temperature measurement in lakes, streams, oceans and soil environments.
Temperature Sensor (MX2201 and MX2202)
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)
Resolution0.04°C (0.072°F)
Drift<0.1°C (0.18°F) per year
Response Time17 minutes typical to 90% in air moving 1 m/s, unmounted
7 minutes typical to 90% in stirred water, unmounted
 
Logger
Radio Power1 mW (0 dBm)
Transmission RangeApproximately 30.5 m (100 ft) line-of-sight
Wireless Data StandardBluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0)
Logger Operating Range-20° to 70°C (-4° to 158°F) in air
Logging Rate1 second to 18 hours
Buoyancy (Fresh Water)2g (0.07 oz) positive
WaterproofTo 30.5 m (100 ft)
Memory96,000 measurements
BatteryCR2032 3V lithium, user replaceable
Battery Life1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off disabled in software.

2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off enabled 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 DowloadApproximately 45 seconds; may take longer the farther the device is from the logger
Wetted MaterialsPolypropylene case, EPDM O-ring
Dimensions3.35 x 5.64 x 1.6 cm (1.32 x 2.22 x 0.63 inches)
Weight12.75 g (.45 oz)
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
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