Sopepoyie RC-36 NC/NO Recessed Wired Security Window Door Contact Sensor Brown Alarm Magnetic Reed Switch 5 Sets

2 Set Magnetic Reed Switch NO/NC, Wired Surface Mount Door Window Contact Sensor For Security Alarm, Silver

Dairzitv RC-36 Recessed NC Security Alarm Door Window Contact Sensor Magnetic Reed Switch 5 Pcs

White 3/8" Recessed Wired Security Door Window Alarm Contact - (20

Wired Door Contacts Surface Mount NC Security Alarm Door Window Sensors - White, 5 Pcs | Authorizid

20Pcs Recessed No Magnetic Window/Door Contacts Security Alarm Switch

Edwards 1076H-N Recessed Steel Door Contact With Wire Leads 1 Diameter High Security SPDT Biased For Higher Security 1/2 Gap Single Pole-Double Throw White

PATIKIL Magnetic Reed Switch, 1 Set Normally Open NO Wired Surface-Mounted Door Window Contact Switch

UTC Interlogix (Formerly GE Security/Sentrol) 1076H-N Recessed Steel Door Contact, Wire Leads, 1" Diameter, 1/2" Gap, SPDT, High Secuirty, White

Wired Door Contacts Surface Mount NC Security Alarm Door Window Sensors - Brown | Authorizid

1UTC Interlogix (Formerly GE Security/Sentrol) 1076D-N Recessed Steel Door Contact, Wire Leads, 1" Diameter, 1/2" Gap, DPDT, White

1 Pc White N.C. Recessed Door Contacts (NORMALLY CLOSED) Alarm Door Window Sensors With Magnetic Reed Switch.