The Gentex GES24-15/75WW Low Profile Combination Horn/Strobe creates reliable visual and audible alarms in emergency situations without breaking the bank. Decrease installation and operation costs with this affordable, high performance horn/strobe that features the checkmate instant voltage verification system, a SuperSlide bracket for easier supervised testing, and a tamper proof reentrant grill. Horn dBA can be adjusted from low to high. Alarm tones can be set as continuous or Temporal 3. The alarm can be muted by the user while the strobe continues to flash.