| GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM;PORTABLE SMOKE OPACITY;24.000 IN. DIA; 30.000 IN. LG; 6.000 IN. DP,THIS SINGLE LINE CONNECTING CABLE IS FLEXIBLE AND OF 25 FT L,HAS AN AUTOMATIC SHUT-OFF THAT TRIGGERS THE UNIT TO TURN OFF AUTOMATICALLY AFTER 10 MINUTES TO CONSERVE BATTERY LIFE; MODEL 650 IS POWERED BY 6 ALKALINE "C" CELLS; OPERATES 200 HRS BEFORE BATTERY REPLACEMENT BECOMES NECESSARY; OPERATING TEMP 32-120 F |