Specifications:
Filter dimension:: 4.2in x 5.2in x 0.37in
View area: 3.9in x 3.3in
Number Of Sensors: 4
Dark shade number: Variable shade 5-9/9/13
Light shade number: 4
Time from light to dark: 0.08ms
Sensitivity /Delay: Adjustable (Internal)
Time from dark to light: 0.1-0.9s
Adjustable: (Internal)
Operating temperature: 7°F - 149°F
Power supply: Solar cell Replaceable battery (CR2450*1PCS)
Grind function: Yes
Warranty: Two Year