HOBO Pendant MX Water Temperature/Light Data Logger

HOBO Pendant MX Water Temperature & Light Data Logger

A waterproof logger that uses the power of Bluetooth to deliver accurate temperature measurements straight to your mobile device or Windows computer running Onset's free HOBOconnect app. Designed for durability, this compact logger is ideal for measuring temperature in streams, lakes, oceans, and soil environments. Data collection in the field has never been easier!

Mounting Requirements:It is very important that the logger housing does not get distorted when mounted. When mounting these loggers to any non-flat surface, such as rebar or posts, we recommend using the Mounting Boot (BOOT-MX2201-2202). This boot is also useful for mounting loggers so they can be easily removed for service.

Important Info

Requires HOBOconnect app and compatible mobile device or Windows computer. System requirements can be found at the bottom of the HOBOconnect software page.

Features & Benefits

• New light sensor offers more accurate light intensity readings for light in the visible light spectrum
• Convenient wireless setup and download via Bluetooth 
• Large memory stores 96,000 measurements
• Waterproof to 30 meters (100 feet)
• User-replaceable battery
• Mounting tabs for fast, easy deployment
• LED alarm notifies you when the temperature exceeds set threshold
• Works with Onset’s free HOBOconnect app
• ±0.5°C (±0.9°F) temperature accuracy and ±10% light accuracy typical for direct sunlight

In what environment does this data logger operate?

This data logger operates in indoor, outdoor, and water environments.

The MX2202 data logger supports the following measurements: Light Intensity, Soil Temperature, Temperature and Water Temperature

Specifications for the MX2201

Temperature Sensor (MX2201 and MX2202)

• Range: -20° to 70°C (-4° to 158°F)
  -20° to 50°C in water (-4° to 122°F in water)
• Accuracy: ±0.5°C from -20° to 70°C (±0.5°C from -4° to 158°F)
• Resolution: 0.04°C (0.072°F)
• Response Time: 17 minutes typically to 90% in air moving 1 m/s, unmounted
  7 minutes typically to 90% in stirred water, unmounted

Light Sensor (MX2202)

• Range: 0 to 167,731 lux (0 to 15,582 lum/ft2)
• Accuracy: ±10% typical for direct sunlight (see Light Measurement on page 2 for more details)

Logger

• Logger Operating Range : -20° to 70°C in air (-4° to 158°F in air)
• Buoyancy (Fresh Water): 2 g positive (0.07 oz positive)
• Waterproof: To 30.5 m (To 100 ft)
• Radio Power: 1 mW (0 dBm)
• Transmission Range : Approximately 30.5 m line-of-sight (Approximately 100 ft line-of-sight)
• Wireless Data Standard: Bluetooth Low Energy (Bluetooth Smart)
• Logging Rate: 1 second to 18 hours
• Battery: CR2032 3V lithium, user replaceable
• Memory: 96,000 measurements
• Full Memory Download Time: 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 (0.45 oz)
• Environmental Rating: IP68