YASONG LTE-1101MJ Rotating Warning Light with Buzzer, AC110V-120V Industrial Beacon Revolving Alarm with 90dB Emergency Security Siren

AC 110V Industrial 110dB MS-190 Alarm Sound Motor High Power Buzzer Siren

Fire Alarm Bell, 6", 120 VAC, Security Bell 120 Volt AC

Ogrmar Plastic Dustproof IP65 Junction Box DIY Case Enclosure (8"x 6"x 4")

uxcell AC110/120V Coil Red Indicator Light 8 Pin DPDT Electromagnetic General Purpose Power Relay Socket Base JQX-13F

AC Current Voltage Amperage Power Energy Panel Meter LCD Digital Display Ammeter Voltmeter Multimeter with Split Core Current Transformer CT AC 80-260V 100A (AC 100A Meter(Split Core Transformer))

Fire Alarm Bell, Security Alarm Bell, 12 Vdc, 6",

Epsilont 30 Watt Siren Dual Tone Indoor/Outdoor Self-Contained Electric Security Siren SD-30W 6-12VDC 1.1Ah 120db 8 X 5.5 X 9 Inch

Inkbird SSR Solid State Relay SSR 40DA for PID Thermostat Temperature Controller

Heath Zenith SL-5407-BZ 180-Degree Replacement Motion Sensor, Selectable Timer, Adjustable Motion Detection Sensitiity Upto 70Feet Range, LED Indicates Motion Sensed (Day or Night), 500W, Bronze

RFID Door Access Control System Kit, AGPtEK Home Security System With 280kg 620LB Electric Magnetic lock 110-240V AC to 12v DC 3A 36w Power Supply Proximity Door Entry keypad 10 Key Fobs EXIT Button