Data Loggers

Pendant MX Water Temperature Data Logger

A waterproof logger enabled with Bluetooth wireless access to deliver accurate temperature measurements straight to your mobile device or Windows computer using our HOBOconnect app.

HOBO Pendant MX Water Temperature Data Logger

Overview

A waterproof logger that uses the power of Bluetooth to deliver accurate temperature measurements straight to your mobile device or Windows computer running our 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!

Purchase an MX Data Plan to get more out of your data and access it from anywhere using the LI-COR Cloud software platform (formerly HOBOlink)

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 buoy lines, we recommend using the included Mounting Boot (BOOT-MX2201-2202)—also useful for mounting loggers so they can be easily removed for service. Additional mounting boots can be purchased as desired.

HOBO Pendant MX Water Temperature Data Logger

Features
  • Convenient wireless setup and download via Bluetooth
  • Mounting boot included
  • Large memory stores 96,000 measurements
  • Waterproof to 30 meters (100 feet)
  • User-replaceable battery
  • Mounting tabs for fast, easy deployment
  • LED indicates when temperature exceeds set threshold
  • Works with Onset’s free HOBOconnect app
  • ±0.5°C (±0.9°F) accuracy

HOBO Pendant MX Water Temperature Data Logger

Specifications

Temperature Sensor (MX2201 and MX2202)

Range

-20° to 70°C in air
-4° to 158°F in air
-20° to 50°C in water
-4° to 122°F in water

Accuracy

±0.5°C from -20° to 70°C
±0.9°F from -4° to 158°F

Resolution

0.04°C
0.072°F

Drift

<0.1°C per year
<0.18°F per year

Response Time

17 minutes typical to 90% in air moving 1 m/s, unmounted
7 minutes typical to 90% in stirred water, unmounted

HOBO Pendant MX Water Temperature Data Logger

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)

HOBO Pendant MX Water Temperature Data Logger

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

Time Accuracy

±1 minute per month at 25°C
±1 minute per month at 77°F

Battery

CR2032 3V lithium, user replaceable

Battery Life

1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On enabled in software.
2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On disabled 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.

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

HOBO Pendant MX Water Temperature Data Logger

Pendant MX Water Temperature Data Logger

For more information, contact us.

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failure analysis, material characterization, and metrology equipment

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Pendant MX Water Temperature Data Logger
Data Loggers
Pendant MX Water Temperature Data Logger
Data Loggers