Sierra Monitor Corporation SMC Auto Switch (Solid State) D-M9NA User Manual | 2 pages | Original mode | Also for: SMC Auto Switch (Solid State) D-M9PA, SMC Auto Switch (Solid State) D-M9NAV, SMC Auto Switch (Solid State) D-M9BA, SMC Auto Switch (Solid State) D-M9BAV, SMC Auto Switch (Solid State) D-M9PAV