- Cellular Alarms
- Internet Alarms
- Phone Line Alarms
- Cellular & Internet Adapters
- STS-3xx Wireless Accessories
- STS-4xx Wireless Accessories
- Wired Components
- Universal Wireless Sensor/Siren
- Decals & Signs
- Car Alarms, Locks, & Starters
- Car Accessories
- Wires & Cables
- Other Wireless Accessories
Products
3xx Alarm Accessories
Sort by:
Name A - Z
-
AA Alkaline 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
- $0.38 if ordered online. Order by phone: $0.50, Save $0.12 online!
-
AAA Alkaline Battery [6-Pack]
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
- $2.25 if ordered online. Order by phone: $2.95, Save $0.70 online!
-
Alarm System Insurance Certificate - Save 20% on Insurance Premiums
- Save up-to 20% on Insurance Premiums
- Receive by fax, email, or post office mail
- $7.95 if ordered online. Order by phone: $8.95, Save $1.00 online!
-
Double Sided Tape for Door & Window Sensors
Compatibility: STS-3xx Series (Full List in Description)
- Strong Double-Sided Sticky Foam Pads
- Cut To Size of Door/Window Sensors
- $0.50 if ordered online. Order by phone: $1.00, Save $0.50 online!
-
Key Chain Remote w/ Slide Cover [Blue]
Compatibility: STS-3xx Series (Full List in Description)
- Arm & Disarm System From Inside or Outside the House
- Panic Button for Emergencies
- Extendable Antenna for Longer Range
- Attach To Keyring
- $14.95 if ordered online. Order by phone: $16.95, Save $2.00 online!
-
Key Chain Remote w/ Slide Cover [Brown]
Compatibility: STS-3xx Series (Full List in Description)
- Arm & Disarm System From Inside or Outside the House
- Panic Button for Emergencies
- Extendable Antenna for Longer Range
- Attach To Keyring
- $14.95 if ordered online. Order by phone: $16.95, Save $2.00 online!
-
Magnetic Strip for Door/Window Sensors (For STS3-DORA Sensors)
Compatibility: STS-3xx Series (Full List in Description)
- Leave Window Open Without Bypass
- Replacement Magnet for STS3-DORA Sensors
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.
- $2.99 if ordered online. Order by phone: $4.99, Save $2.00 online!
-
Magnetic Strip for Door/Window Sensors (For STS3-DORB Sensors)
Compatibility: STS-3xx Series (Full List in Description)
- Leave Window Open Without Bypass
- Replacement Magnet for STS3-DORB Sensors
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.
- $2.99 if ordered online. Order by phone: $4.99, Save $2.00 online!
-
Motion Detector Mounting Bracket
Compatibility: STS-4xx Series (Full List in Description)
- Easy Angle Adjustment
- Replacement Mounting Bracket for Motion Detectors
- $2.99 if ordered online. Order by phone: $3.99, Save $1.00 online!
-
Repalcement 9-Volt Power Adapter
Compatibility: STS-300 & STS-301 Alarms
- Replacement Power Adapter Alarm Keypad
- AC 110v 60Hz
- 9v DC 500mA
- $14.95 if ordered online. Order by phone: $16.95, Save $2.00 online!
-
Replacement 23A 12v Battery
Compatibility: Many Alarm Accessories (Full List in Description)
- Replacement battery for many of our sensors
- ~ 1-Year Battery Life in Our Sensors
- 23A Battery Type
- 12 Volts
- $0.99 if ordered online. Order by phone: $2.99, Save $2.00 online!
-
Replacement Rechargeable Backup Battery (For STS-300 Keypads Only)
Compatibility: STS-300 Alarms
- Use to replace STS-300 backup battery
- Quick Release Wire (Red+ & Black-)
- Voltage: 7.2v to 7.4v
- ~1200mAh Rechargeable Battery
- $19.95 if ordered online. Order by phone: $22.95, Save $3.00 online!

