HOBO U11 3 State/1 Event Data Logger - U11-001

The HOBO U11 3-State/1-Event Data Logger lets you simultaneously monitor and log state changes in up to three locations plus one time/date-stamped event. The three state and one event channels monitor contact closures or openings driven by external sensors mounted on motors, doors, or other cycling equipment.

State and Event Channels: External contact input: Passive relay switch or contact closure - minimum duration 1 second (open > 300 KΩ or closed < 10 KΩ)

Max total cable run: 32 m (105 ft); if using only state channels, 64 m (210 ft)

Time accuracy: Approximately ± 1 minute per month at 25°C (77°F), see Plot A

Operating temperature:
Logging: -20° to 70°C (-4° to 158°F)
Launch/readout: 0° to 50°C (32° to 122°F), per USB specification

Humidity range: 0 to 95% RH, non-condensing

Battery life: 1 year typical use with normally open contacts; two months if all four channels are logging with continuously closed contacts

Memory: 64K bytes (up to 43,000 state changes or events)

Weight: 50 g (1.8 oz)

Dimensions: 58 x 74 x 22 mm (2.3 x 2.9 x 0.9 inches)

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).