4xx Alarm Accessories

Compatibility:  STS4-DORN Door/Window Sensors

• Replacement Magnet Strip for STS4-DORN Sensors
• Leave Window Open Without Bypass



Extra magnetic strips are perfect for leaving your windows open at night without bypassing the zone. If the window is moved by a burglar during the night, the alarm system will still sound an alarm.

Compatibility:  STS4-DORP Door/Window Sensors

• Replacement Magnet Strip for STS4-DORP Sensors
• Leave Window Open Without Bypass



Extra magnetic strips are perfect for leaving your windows open at night without bypassing the zone. If the window is moved by a burglar during the night, the alarm system will still sound an alarm.

Compatibility:  STS4-DORA Door/Window Sensors

• Replacement Magnet for STS4-DORA Sensors
• Leave Window Open Without Bypass



Extra magnetic strips are perfect for leaving your windows open at night without bypassing the zone. If the window is moved by a burglar during the night, the alarm system will still sound an alarm.

Compatibility:  STS-4xx Series (Full List in Description)

• Perfect for Locking Alarm Box (STS-451 & STS-455 Alarms)
• Includes 1 Lock And 2 Keys

Compatibility:  STS-4xx Series (Full List in Description)

• Perfect for Protecting Alarm Boxes
• Audible Tamper Alarm
• Comes With Tamper Switch and Mounting Hardware

Compatibility:  STS-4xx Series (Full List in Description)

• Replacement battery for many of our sensors
• ~2-3 Year battery life in our sensors
• 3v Lithium Battery (CR123/CR123A Battery Type
• Order more; Save more! As-Low-As $1.50

Compatibility:  STS-4xx Series (Full List in Description)

• Replacement battery for many of our sensors
• ~2-3 Year battery life in our sensors
• 3v Lithium Battery (CR123/CR123A Battery Type
• Order more; Save more! As-Low-As $1.85

Compatibility:  STS-4xx Series (Full List in Description)

• Replacement Battery for Some of Our Sensors
• ~1-Year Battery Life In Our Sensors
• CR2032 Battery Type
• 5-Year Shelf Life

Compatibility:  STS-4xx Series (Full List in Description)

• Replacement Battery for the STS4-PANH
• ~1-Year Battery Life in the Device
• 27A Battery Type
• 12v Battery

Compatibility:  Alarm Accessories (Full List in Description)

• Replacement Battery for many accessories
• ~1-2 Year Battery Life in the Device
• 5-Year Shelf Life
• 1.3v-1.5v Battery

Compatibility:  Alarm Accessories (Full List in Description)

• Replacement Battery for many accessories
• ~1-2 Year Battery Life in the Device
• 5-Year Shelf Life
• 1.3v-1.5v Battery

Compatibility:  Many Alarm Accessories

• Replacement Battery for many accessories
• ~1-2 Year Battery Life in the Device
• 5-Year Shelf Life
• 1.3v-1.5v Battery