The U9 Light On/Off data logger can record up to 43,000 light (on/off) changes using the built-in light sensor. The logger features push-button or programmable start times, 1 year user-replaceable battery and a sensitivity threshold adjustable from 10 to 100 lumens/m2. Best used when trying to determine the on and off states of a particular light source.
Required with the Light Data Logger
>> HOBOware™ Software Kit
Included with each Light Data Logger
>> Mounting Kit with Magnet
>> Hook and Loop Tape
>> 3/8" Double-Sided Tape
NOTE: Large Quantity Discounts Are Available!
Light On/Off Data Logger Features
- Programmable start time/date or push-button start
- Numerous event types (button push/release, host PC connection, low battery) stored to data file asynchronously during logging
- Requires HOBOware Software and USB Kit ( Available in PC and MAC Versions)
Light On/Off Data Logger Specifications
| Channels | 1 Light On-Off Channel |
| Light Threshold | Adjustable from 10 to 100 lumens/m² at 25°C (fluorescent light). The sensor’s sensitivity to incandescent light is about ten times greater. |
| Time Accuracy | Approximately ±1 minute per month at 25°C (77°F) |
| Operating Range | Logging: -20°C to 70°C (-4°F to 158°F); 0 to 95% RH, non-condensing Launch/Readout: 0°C to 50°C (32°F to 122°F), per USB specification |
| Battery | CR2032 Type Lithium Battery |
| Battery Life | 1 Year Typical Use (User Replaceable) |
| Data Storage Capacity | 43,000 State On/Off Changes (Samples) |
| Standards Compliance | CE |
| Weight | 25 g (0.8 oz) |
| Dimensions | 2.4 x 1.9 x 0.8"(6.0 x 4.7 x 1.9 cm) |
| Description | Part Number | |||
| HOBO U9 Light On-Off Data Logger | U9-002 | |||
| Required Software Kits - 1 Required (Compare HOBOWare Versions) | ||||
| HOBOware Lite Software Kit for Windows/Mac (includes Software and Cable) | BHW-LITE-CD | |||
| HOBOware Pro Software Kit for Windows/Mac (includes Software and Cable) | BHW-PRO-CD | |||
| Optional Accessories | ||||
| Onset U-Shuttle Data Transporter (Requires HOBOware Pro Software) | U-DT-1 | |||
| Extra/Replacement Batteries (pack of 5) - CR2032 Lithium Batteries | HRB-TEMP-5 | |||
| Custom USB Interface Cable | CABLE-USBMB-HS | |||
| Glacier Clear Xtreme Protective Case (3.93" x 2.4" x 0.94") | T1000.1 | |||
| Blue Xtreme Protective Case (3.93" x 2.4" x 0.94") | T1000.4 | |||
Application Notes (pdf)
Understanding the Differences Between State, Event and Pulse Datalogging