MX2202 HOBO Pendant® MX Temperature & Light Data Logger

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)

Resolution

0.04°C (0.072°F)

Drift

<0.1°C (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

Light Sensor (MX2202)

Range

0 to 167,731 lux (15,582 lum/ft2)

Accuracy

±10% typical for direct sunlight (see Light Measurement on page 2 for more details)

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) in air

Logging Rate

1 second to 18 hours

Buoyancy (Fresh Water)

2g (0.07 oz) positive

Waterproof

To 30.5 m (100 ft)

Memory

96,000 measurements

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 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 Dowload

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 1.6 cm (1.32 x 2.22 x 0.63 inches)

Weight

12.75 g (.45 oz)