10 pcs Recessed Brown Door Contacts NC Security Alarm Door Window Sensors W/Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems auspowers_batchone 10 Pcs - DIYhz GX16

10 Pcs - DIYhz GX16 4 Pins Panel Metal Mount Circular Metal Aviation Connector Adapter Male Female Plug SocketProduct Features: The product is made of flame-retardant material

5ft Packing: a car charging head

Model : KYP25-18-4J

Wide Applications-Our pool bridge heads are suitable for most people to use

8V ✔Operating temperature:0～40 ℃ / 32～104℉ &45%-80%RH ✔Power source:1“9V” battery (included） USE-FRIENDLY DESIGN Sound & Light Alarm Green Light (Mute): Less than 4mGYellow Light (Low sound frequency): 4mG-40mGRed Light (High sound frequency): More than 40mG Comfortable Grip The body material is processed by a special process

10 pcs Recessed Brown Door Contacts NC Security Alarm Door Window Sensors W/Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems auspowers_batchone 10 Pcs - DIYhz GX1610 pcs Recessed Brown Door Contacts NC Security Alarm Door Window Sensors W Magnetic Reed Switch. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system. The door position switches operate with a built an internal magnetic reed switch that closes when