10pcs DS1990A iButton DS9092 w/LED Zinc alloy Probe Reader Socket
S$ 34.21S$ 40.25
Door/window Magnetic Sensor
2pcs Anti-magnetic interference Anti-theft Wireless Door Windows Magnetic Sensor
S$ 14.21S$ 16.73
4Pcs NO White Recessed Magnetic Window Door Contacts Alarm SecurityReed Switch
S$ 14.21S$ 16.73
Recessed NO Magnetic Window/Door Contacts Security Alarm Switch Reed w/Adhesive
S$ 9.93 to S$ 29.93S$ 35.21
Wireless Entry Alarm Home Security Door Window Magnetic Sensor Auto Dial Burglar
S$ 2.84 to S$ 21.36S$ 6.69
20Pcs NO Brown Recessed Magnetic Window Door Contacts Alarm SecurityReed Switch
S$ 29.93S$ 35.21
2 PCS Wired NC Aluminum securityreed Magnetic Sensor door contacts w/screws
S$ 32.78S$ 38.56
4PCS Wired NO Aluminum securityreed Magnetic Sensor door contacts w/screws
S$ 41.35S$ 48.65
10Pcs/Lot Wired NO Wooden Door Contacts Magnetic Switch Access Control w/screws
S$ 25.64S$ 30.16
20pcs DS1990A iButton DS9092 w/LED Zinc alloy Probe Reader Socket
S$ 62.79S$ 73.86
NO White Recessed Magnetic Window Door Contacts Alarm SecurityReed Switch(20Pcs)
S$ 29.93S$ 35.21
20Pcs NO White Recessed Magnetic Window Door Contacts Alarm SecurityReed Switch
S$ 29.93S$ 35.21
10PCS Wireless Window Door Entry Burglar Security Alarm System Magnetic Sensor
S$ 51.35S$ 60.41
NO Wire Recessed Door Contact Magnetic Sensor Switch Access 10 Pcs
S$ 31.35S$ 36.89
10 Pcs Wired NO Door contact Magnetic Sensor Switch Access Control Magnetic
S$ 31.35S$ 36.89
Wireless Window Door Entry Burglar Security Alarm System Magnetic Sensor
S$ 5.69S$ 6.70
Wireless Anti-Theft 130dB Alarm Door Window Magnetic Sensor w/Remote Control
S$ 18.49S$ 21.76
20pcs NO Recessed Magnetic Window/Door Contact Security Safety AlarmSwitch Reed
S$ 17.12S$ 20.14