Overview
Monitors indoor light changes with an internal sensor and records light on/off conditions; ideal for building energy audits and light usage analysis.
Item number UX90-002M has been discontinued.
Call for availability.
Features
- Auto-calibration of ON and OFF thresholds ensures reliable readings
- User-adjustable sensitivity control for low/high light level conditions
- Highly recommended light pipe accessory eliminates effects of ambient light to ensure the most accurate readings
- Compatible with HOBOware and HOBOware Pro software for logger setup and graphing & analysis
Specifications
Logger
Light Threshold
> 65 lux
Light Type
LED, CFL, fluorescent, HID, incandescent, natural
Start Modes
Immediate, push button, date & time, or next interval
Stop Modes
When memory full, push button, or date & time
Time Accuracy
±1 minute per month at 25°C (77°F) (see Plot A)
Power Source
One 3V CR2032 lithium battery and USB cable
Battery Life
1 year typical use
Memory
UX90-002: 128 KB (84,650 measurements, maximum)
UX90-002M: 512 KB (346,795 measurements, maximum)
Download Type
USB 2.0 interface
Full Memory Download Time
10 seconds for 128 KB; 30 seconds for 512 KB
Logger Operating Range
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
LCD
LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
Size
3.66 x 5.94 x 1.52 cm
1.44 x 2.34 x 0.6 in.
Weight
23 g
0.81 oz
Environmental Rating
IP50
No category
Memory Modes
Wrap when full or stop when full
