Car Alarm Miami  tested these products for reliability and durability.

Excalibur 1870 4 button transmitter included ECHO compatible Multi-vehicle capability BLADE cartridge compatible Low temp auto start
Low voltage auto start Run time extender Run time expiration warning Parking timer Remote start timer Stick shift compatible remote start Turbo timer Selectable vehicle
Limited lifetime warranty on all components Up to 4 aux outputs 2 data ports support 2 accessories Data ports that support iDatalink & Trilogix protocols Includes dual zone impact sensor Coded override (99 possible combinations) Starter Interrupt included True last door arming Back-up memory system Second channel auxiliary output 3rd channel auxiliary 115 db electronic siren battery on remotes  2 (2016)

Avital 3100 One way mini-transmitter with Blue LED 56 Bit Random Code Hopping Over 75 trillion available codes Dedicated Chirp Delete from Remote Passive Arming By-pass from Remote Code Learning / Anti-scan Receiver Keyless Entry  (locks and unlocks your car doors) Panic and Car Locator Parking Light (flashes your car parking lights all around) 2nd Channel Trunk Release & 3rd and 4th Channel Keyless Entry Lock & Unlock power doors / trunk release Dual Stage Shock Sensor with Additional Dual Stage Port Push-type Valet/Override Switch / Super Bright Red LED Starter Disable with Relay and Socket 120 dB Electronic Siren with Optional Dedicated Horn Output True Last Door Arming option battery (2016)

Avital 3300  mini-LCD Remote Transmitter One 5-Button   One way mini-transmitter with Blue LED 56 Bit Random Code Hopping  Over 75 trillion available codes Dedicated Chirp Delete from Remote Passive Arming By-pass from Remote Code Learning / Anti-scan Receiver Keyless Entry (locks and unlocks your car doors) Panic and Car Locator Parking Light (flashes your car parking lights all around) 2nd Channel Trunk Release & 3rd and 4th Channel Keyless Entry Lock & Unlock power doors / trunk release Dual Stage Shock Sensor with Additional Dual Stage Port Push-type Valet/Override Switch / Super Bright Red LED Starter Disable with Relay and Socket 120 dB Electronic Siren with Optional Dedicated Horn Output True Last Door Arming option

Clifford 3105x  3-channel security/keyless entry system /Clone-Safe® Code-Hopping® /Parking Light Flash Failsafe® Starter Kill

Stinger® DoubleGuard® Shock Sensor Revenger® Six-Tone Siren Bright Blue LED  Indicator

Dome Light Supervision - On-Board Relay Comfort Closure 2 Auxiliary Outputs Includes Two 4-button Transmitters Control Center w/ antenna, Valet switch and Status LED combined in one unit

XR+ super-heterodyne receiver for range up to one quarter mile

Viper smartstart  550 4G System Features Lock & Unlock doors & Arm /Disarm Alarm Control your car find feature (honk honk) Start your vehicle remotely Programmable auxiliary outputs (like trunk release) GPS Vehicle Locate GEO Fence with Security Fence Speed Alert Alert by text ,email Alert by shock sensor ,door open, alarm trigger Low Battery Notification