Cellular & Internet Adapters

All Products: 112 of 16
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  • 4G VoLTE Cellular Dialer for Self or Professional Monitoring (Alarm Systems, Elevators, & Phones)
    • 3% less than eBay

    4G VoLTE Cellular Dialer for Self or Professional Monitoring (Alarm Systems, Elevators, & Phones)

    Compatibility: Regular phone line devices

    • Turns a landline alarm or phone into a cellular device
    • AT&T, T-Mobile, & Ultra Mobile // 4G, LTE, VoLTE
    • Supports Contact ID & Voice Calls
    • Compatible with the Cornell 4800 system
    Not rated yet
    • $154.95
    • if ordered online. Order by phone: $159.95, Save $5.00
  • Rechargeable Backup Battery for Cellular Dialer
    • 9% less than eBay

    Rechargeable Backup Battery for Cellular Dialer

    Compatibility:  STS-GSMC, STS-GSMD

    • Add a battery backup to your cellular dialer
    • Easy quick-release plug to Install
    • 3.7v ~1000mA
    Not rated yet
    • $19.95
    • if ordered online. Order by phone: $21.95, Save $2.00
  • 4G/LTE Cellular Antenna
    • 17% less than eBay

    4G/LTE Cellular Antenna

    Compatibility: Supports most cellular dialers

    • Compatible with LTE/4G/3G/2G
    • Short 7.75 inch antenna
    • 6 1/2 foot cord
    • SMA connector (Sub-Miniature A)
    Not rated yet
    • $9.95
    • if ordered online. Order by phone: $11.95, Save $2.00
  • Phone Switch - Primary Phone Line to Cellular Backup
    • 8% less than eBay

    Phone Switch - Primary Phone Line to Cellular Backup

    Compatibility: Phone Line Alarms

    • Allows for Primary Landline & Cellular Backup
    • Automatic line switch when phone line is cut
    • Powered by alarm or separate power adapter
    • Uses standard RJ11 phone jacks
    Not rated yet
    • $34.95
    • $36.95
    if ordered online. Order by phone: $39.95,Save $3.00
  • T-Mobile Pre-Paid SIM Card (Triple Cut: Standard, Micro, Nano)
    • 11% less than eBay

    T-Mobile Pre-Paid SIM Card (Triple Cut: Standard, Micro, Nano)

    Compatibility: Any T-Mobile Compatible Device (Alarm List in Description)

    • Required to obtain cellular service through T-Mobile
    • Add to plan or add pre-paid account
    • Includes FREE Activation by phone
    Not rated yet
    • $24.95
    • if ordered online. Order by phone: $27.95, Save $3.00
  • VONETS Mini Wifi Bridge Repeater
    • 8% less than eBay

    VONETS Mini Wifi Bridge Repeater

    Compatibility: Any Internet Compatible Device (Alarm List in Description)

    • Perfect for Alarm Systems and Wireless Cameras
    • Provides Up To 300Mbps Transmission Rates For Travel, Home, and Office Use
    • Syncs To Your Home Network
    • Complies with IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Standards
    Not rated yet
    • $21.95
    • if ordered online. Order by phone: $23.95, Save $2.00
  • Linksys Digital Broadband Adapter - (Phone Line to Internet Adapter for Alarm System)
    • 4% less than eBay

    Linksys Digital Broadband Adapter - (Phone Line to Internet Adapter for Alarm System)

    Compatibility: STS-4xx Series Alarms & Contact ID Alarms(Full List in Description)

    • Can only be used with professional monitoring
    • Internet Service is Required

    • This Digital Broadband Adapter (DBA) is used to convert an analog phone signal (Contact ID) though high speed (broadband) internet service.
    Not rated yet
    • $79.95
    • if ordered online. Order by phone: $82.95, Save $3.00
    Only 1 left in stock.
  • 4G LTE Short Cellular Antenna (3G/2G GSM/WCDMA Backwards Compatible)
    • 17% less than eBay

    4G LTE Short Cellular Antenna (3G/2G GSM/WCDMA Backwards Compatible)

    Compatibility: Supports most cellular dialers

    • Compatible with LTE/4G/3G/2G
    • Short 3.75 inch antenna
    • 3-foot cord
    • SMA connector (Sub-Miniature A)
    Not rated yet
    • $9.95
    • if ordered online. Order by phone: $11.95, Save $2.00
  • VOIP Broadband Adapter - (Phone Line to Internet for Alarm System)
    • 6% less than eBay

    VOIP Broadband Adapter - (Phone Line to Internet for Alarm System)

    Compatibility: Phone Line Alarm Systems

    • Dedicated phone number
    • Internet service is required

    • This VOIP Phone Line Adapter is used to to make phone calls though high speed (broadband) internet service.
    Not rated yet
    • $49.99
    • if ordered online. Order by phone: $52.99, Save $3.00
  • Ultra Mobile Pre-Paid SIM Card (Triple Cut: Standard, Micro, Nano) for T-Mobile Network
    • 5% less than eBay

    Ultra Mobile Pre-Paid SIM Card (Triple Cut: Standard, Micro, Nano) for T-Mobile Network

    Compatibility: Any Unlocked T-Mobile Compatible Device (Alarm List in Description)

    • Required to obtain cellular service through UltraMobile
    • Pre-paid account ($3/mo.)
    • Includes 100 mins, 100 texts, & 100 megs per month; (overages 3¢/1¢)
    • Includes activation & 30-days of service from date activated
    Not rated yet
    • $34.95
    • if ordered online. Order by phone: $36.95, Save $2.00
  • UPS 12-Volt Power Adapter w/ Built-In Battery (For Cellular & Internet Communicators)
    • Free shipping
    • 9% less than eBay

    UPS 12-Volt Power Adapter w/ Built-In Battery (For Cellular & Internet Communicators)

    Compatibility:  12v+ Communicators

    • Power Adapter for Cellular & Internet Adapters
    • Input: 12v DC (Select Power Adapter Option when Ordering)
    • Output: 12v DC 1000mA
    Not rated yet
    • $29.95
    • if ordered online. Order by phone: $32.95, Save $3.00
  • 4G LTE Verizon Network Cellular Dialer for Self-Monitoring Alarm System Fixed Terminal
    • 4% less than eBay

    4G LTE Verizon Network Cellular Dialer for Self-Monitoring Alarm System Fixed Terminal

    Compatibility: Regular phone line devices

    • Turns a landline alarm or phone into a cellular device
    • Verizon Towers - Unlimited Minutes - No Contracts
    • Only $15/Mo.+tax (Uses 3rd Party Billing)
    • Self-Monitoring Only; Does not support Contact ID
    Not rated yet
    • $134.95
    • if ordered online. Order by phone: $139.95, Save $5.00
All Products: 112 of 16