Part Number - U9-002
HOBO Light On/Off Data Logger
Discontinued
Important Information
HOBO data loggers require HOBOware software (USB interface cable included w/CD purchase) and a communications device. See compatible items below.
Compatible with
Overview
The HOBO U9 Light On/Off Data Logger records light on and off status, the light threshold is adjustable from 10 to 100 lumens/m2. The large memory records up to 43,000 on/off changes, making the data logger a great tool for monitoring light usage for energy audits.
Features
- Monitors light on and off conditions and includes a user-adjustable sensitivity control.
- Records up to 43,000 state changes
- Includes mounting kit with magnet, hook and loop tape, 3/8" double-sided tape
Specifications
Light threshold: Adjustable from 10 to 100 lumens/m² at 25°C (fluorescent light)
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
Memory 64K bytes (up to 43,000 state changes)
Weight: 25 g (0.8 oz)
Dimensions: 45 x 60 x 20 mm (1.8 x 2.38 x 0.77 inches)
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
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