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White B-Connector Wire Splices for Low Voltage (100 Pack)

Alarm Wire 22 Gauge 100' 2 Conductor Stranded Copper Cable White UL Listed

SpeedDa 6 Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security

Honeywell WAVE-2 Two Tone Siren

HiLetgo 2pcs ESP8266 NodeMCU LUA CP2102 ESP-12E Internet WiFi Development Board Open Source Serial Wireless Module Works Great with Arduino IDE/Micropython (Pack of 2PCS)

Bosch ISC-BPR2-W12 Blue Line Gen2 PIR Motion Detector, Provides 40 ft x 40 ft Coverage, High-Impact ABS Plastic, Dynamic Temperature Compensation, Pet Friendly, Self-Locking Enclosure, White

HiLetgo 3pcs 5V D1 mini Relay Shield 5V D1 mini Relay Module for WeMos D1

SHELLY 1 One Smart Relay Switch Wireless WiFi Home Automation iOS Android Application (2 Pack)

Honeywell 951WG-WH Stubby Recessed Magnetic Contact Switch (3 Pack)

uxcell 10pcs RC-33 NC Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch White