Filter cassette size : 110×90×8.2mm l   View window size : 92×42mm.
l   UV/IR protection : Up to shade DIN 16
l   Clear state Shade No : DIN4(3)
l   Dark state Shade No : DIN9(8)—DIN13(14)　stepless adjustment
l   Sensitivity : low or high can be selective
l    Power supply : solar cells, No battery change required
l   Power on/off :  Fully Automatic
l   Response time :
A)  Clear to dark : ≤1/25000S
B)  Dark to Clear : 0.2-1.0S  fast  or  slow can be selective
l   Work temperature : -10—+55℃
l   Storing temperature : -20—+70℃