4xx Alarm Accessories

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  • Zone Expander (For 451 Alarm)
    • 8% less than eBay

    Zone Expander (For 451 Alarm)

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

    • Adds Up To 24 More Wireless Zones
    • Add Up to 8 Wired Zones

    • This zone expander will increase the number of zones that are allowed on our STS-451 panel. It can add an additional 24 wireless zones or an additional 8 wired zones to the alarm system.
    Not rated yet
    • $21.95
    • if ordered online. Order by phone: $23.95, Save $2.00
  • Wireless Water/Flood Float Sensor
    • 7% less than eBay

    Wireless Water/Flood Float Sensor

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

    • Detects Water At Certain Levels
    • Supports NO or NC Contact
    • Blue LED Light Indictor
    • 2-3 Year Battery Life
    Not rated yet
    • $24.95
    • if ordered online. Order by phone: $26.95, Save $2.00
  • Wireless Water/Flood Contact Sensor
    • 7% less than eBay

    Wireless Water/Flood Contact Sensor

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

    • Detects Water Level On Floors
    • Great Near Water Tanks or Basements
    • 2-3 Year Battery Life
    • Easy Installation
    Not rated yet
    • $24.95
    • if ordered online. Order by phone: $26.95, Save $2.00
  • Wireless Vibration Sensor
    • 14% less than eBay

    Wireless Vibration Sensor

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

    • Uses Standard watch battery
    • Ultra Thin Design
    • Blue LED Indicator
    • Adjustable Sensitivity
    Not rated yet
    • $11.95
    • if ordered online. Order by phone: $13.95, Save $2.00
  • Wireless Vertical Angle Motion Detector
    • 8% less than eBay

    Wireless Vertical Angle Motion Detector

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

    • Flat Wide Detection Beam
    • Mount Horizontally on Wall or Above Window
    • Uses Standard AA Batteries
    • Detection range of 30 feet
    Not rated yet
    • $23.95
    • if ordered online. Order by phone: $25.95, Save $2.00
  • Wireless Transmitter - Normally Open
    • 12% less than eBay

    Wireless Transmitter - Normally Open

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

    • Used for NC or NO Wired Contacts
    • 2-3 Year Battery Life
    • Easy Installation
    • Standard Negative and Positive Wire Connection
    Not rated yet
    • $14.95
    • if ordered online. Order by phone: $16.95, Save $2.00
  • Wireless Transmitter - Normally Closed
    • 12% less than eBay

    Wireless Transmitter - Normally Closed

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

    • Used for NC Wired Contacts
    • 2-3 Year Battery Life
    • Easy Installation
    • Standard Negative and Positive Wire Connection
    Not rated yet
    • $14.95
    • if ordered online. Order by phone: $16.95, Save $2.00
  • Wireless Temperature Sensor - Freeze or Heat Alarm
    • 7% less than eBay

    Wireless Temperature Sensor - Freeze or Heat Alarm

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

    • Set between 32°F to 140°F (0°C to 60°C)
    • Helps prevent broken pipes due to freezes.
    • or Helps prevent mildew & mold during air condition malfunctions.
    • 2 Year Battery Life
    Not rated yet
    • $24.95
    • if ordered online. Order by phone: $26.95, Save $2.00
  • Wireless Temperature Sensor - Freeze and Heat Alarm
    • 5% less than eBay

    Wireless Temperature Sensor - Freeze and Heat Alarm

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

    • Set between 32°F to 140°F (0°C to 60°C)
    • Set a LOW and HIGH temperature alarm.
    • Helps prevent broken pipes due to freezes.
    • or Helps prevent mildew & mold during air condition malfunctions.
    Not rated yet
    • $34.95
    • if ordered online. Order by phone: $36.95, Save $2.00
    Only 2 left in stock.
  • Wireless Smoke Detector w/ Voice Notification
    • 6% less than eBay

    Wireless Smoke Detector w/ Voice Notification

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

    • Photoelectric w/ thermistor sensor
    • 2-Year Battery Life
    • Adjustable Sensitivity
    • 95 db Beep; with voice announcements
    Not rated yet
    • $28.95
    • if ordered online. Order by phone: $30.95, Save $2.00
  • Wireless Smoke Detector
    • 6% less than eBay

    Wireless Smoke Detector

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

    • Industry Standard Prevents False Alarms
    • 2-Year Battery Life
    • Adjustable Sensitivity
    • 95 db Buzzer
    Not rated yet
    • $28.95
    • if ordered online. Order by phone: $30.95, Save $2.00
    Please email or call us to special order this item.
  • Wireless Signal Repeater / Signal Amplifier Booster for Alarm Sensors
    • 5% less than eBay

    Wireless Signal Repeater / Signal Amplifier Booster for Alarm Sensors

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

    • Extend Range 400 Ft
    • Wireless Transmit Distance ≥5000 Feet
    • Wireless Receiving Distance ≥390 feet
    • Wireless Emitting Frequency Of 433MHz
    Not rated yet
    • $39.95
    • if ordered online. Order by phone: $41.95, Save $2.00
All Products: 112 of 99