VIKING SRL-1 Single Line Loud Ringer with Visual Ring Indication User Manual
Learn about the VIKING SRL-1 Single Line Loud Ringer with Visual Ring Indication. This device adds loud ringing and visual ring indication to any analog phone line or dry contact closure. Choose from four ringing sounds and adjust volume easily with a test button. The SRL-1 is perfect for business/offices/small warehouses and floating employees.