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GauTone Wired Siren Speaker 3.5mm jack for Wireless GSM Alarm System Home Security PG103 PG107 PG105 PG106
433mhz Wireless Sound and Light Siren 100dB Standalone Strobe Siren Home Security Sound Alarm System
S8607 30-130dB Decibel Detector Noise Meter Environmental Volume Tester Household Noise Detector With LCD Backlight Display
22mm 12V Buzzer with Red LED Lndicator Light Flash Alarm Beep Signal Intermittent Sound AD16-22SM Alarm Indicator Red Green
GauTone 85dB Wireless Siren Strobe Light Alarm Alert Sensor For 433MHz Wifi GSM Security Alarm System
1Pcs MC-38A Wired Door Window Sensor Magnetic Switch Door Magnetic Anti-theft Home Alarm System Detector Normally Open DC 60V