Inexpensive sound generator for standard applicationsProduct features:6 tone sequences adjustable using DIP switchTone sequences: continuous tone, slow or fast pulsatingReliable magnetodynamic system for sound generationTechnical data:max. 81 dB (A) Duty cycle ED 100% Protection class IP54, protection class II -30 °C to +60 °C 75 (D) x 116 mm Weight 0.24 kg Volume and volume progression adjustable12 V / 24 V (AC/DC), 0.003 A / 0.006 AInstallation instructions:including bayonet lock with special teeth as vibration protection maximum safety through complete contact protection (even when replacing modules) topmost element of a module tower (therefore 1 sounder per tower possible) Duration of the acoustic signals as long as voltage is applied (use additional relay if necessary) Note: