Complete Remote Start + Vehicle Security System
The CS9920-AS isn’t simply a remote starter.
It combines remote engine start and aftermarket vehicle security through the Compustar CM900-AS control module.
That allows one system to manage functions such as:
Remote Start + Security + Keyless Entry + Alarm Monitoring
For someone replacing an older alarm, this is often cleaner than trying to make a separate remote starter cooperate with an existing security system.
If you’re upgrading a vehicle that currently has security but no remote start, our guide on how to convert a car to remote start explains why integrated systems like this can make more sense than stacking multiple independent controllers.
Remote Engine Start
When professionally installed in a compatible vehicle, the Compustar system can remotely start the engine before you enter the car.
That allows the vehicle’s HVAC system to begin:
- Heating the cabin
- Cooling the cabin
- Defrosting windows
before you leave.
Remote start is particularly useful during extreme weather, but long-range remote start adds another advantage.
You don’t have to wait until you’re almost at the vehicle.
Start it before leaving the building and give the climate-control system time to do its job.
Automatic-Transmission Vehicles Only
This is an important compatibility detail.
The Compustar CM900-AS control module is designed for automatic-transmission vehicles.
It should not be marketed as a manual-transmission remote-start system.
If you’re shopping specifically for a manual-transmission vehicle, choose a Compustar platform that explicitly supports manual-transmission remote start.
Shock Sensor II: Impact + Tilt Detection
The system uses Compustar’s Shock Sensor II, which combines dual-stage impact detection with tilt sensing.
That provides two important security layers.
Impact Detection
The sensor monitors physical disturbances to the vehicle.
Depending on the severity and system configuration, it can distinguish between lighter impacts and more serious events.
Tilt Detection
Tilt sensing is particularly valuable for detecting situations where the vehicle’s angle changes significantly.
That can help protect against attempts involving:
- Wheel theft
- Jacking the vehicle
- Towing
- Significant vehicle movement
For a modified car sitting on expensive wheels and tires, tilt detection can be every bit as important as protecting the doors.
Our car alarm buyer’s guide explains why effective vehicle security should combine multiple layers rather than relying entirely on a loud siren.
2-Way Alarm Alerts
When the system detects a supported security event, the Compustar 2-way remote can notify the owner while within communication range.
That changes the purpose of the alarm.
A traditional 1-way alarm does this:
Vehicle detects intrusion → siren makes noise
A 2-way system can do this:
Vehicle detects intrusion → siren activates → remote alerts owner
That feedback is one of the biggest reasons to move from basic 1-way security to a premium 2-way system.
Door, Hood and Trunk Monitoring
When properly integrated, the security system can monitor supported vehicle entry points such as:
- Doors
- Hood
- Trunk
- Hatch
Some vehicles can communicate these trigger states through compatible data-interface hardware.
Others may require dedicated wiring.
The exact integration depends on the vehicle.
IPX-7 Waterproof T11 Remote
One of the T11’s more unusual features is its IPX-7 waterproof rating.
That’s useful because remote controls live difficult lives.
They get:
- Dropped
- Sat on
- Left in cupholders
- Thrown into backpacks
- Carried in the rain
- Occasionally introduced to beverages
The T11 was designed with a durable housing and waterproof construction to better survive everyday use.
Rechargeable Lithium-Ion Battery
The T11 uses an internal rechargeable lithium-ion battery rather than requiring frequent disposable battery replacement.
Charging is handled through USB.
For a remote with an LCD display and long-range 2-way communication, rechargeability makes considerably more sense than constantly feeding it coin-cell batteries.
Backup G17 Remote
The package also includes a Compustar G17-series remote as a secondary transmitter.
That gives you a backup control option rather than relying entirely on the premium LCD transmitter.
This is useful if:
- The primary remote is charging
- Another driver needs a remote
- The LCD remote is temporarily unavailable
- You simply want a smaller secondary transmitter
Always verify the exact G17 transmitter included with the physical kit because Compustar has produced multiple G17 remote configurations.
Keyless Entry Capability
When integrated with compatible power door locks, the Compustar system can provide remote keyless-entry control.
Supported functions can include:
- Lock
- Unlock
- Arm
- Disarm
Vehicle-specific interface hardware may be necessary depending on the lock architecture.
Older cars can sometimes use relatively straightforward lock wiring.
Modern vehicles may require a compatible data module.
CM900-AS Control Module
At the center of the system is Compustar’s CM900-AS Remote Start & Security Control Module.
The CM900-AS supports:
- Remote start
- Vehicle security
- Shock sensor
- Alarm siren
- Theft-deterrent LED
- Compatible long-range Compustar remotes
- DroneMobile expansion
- Compatible vehicle bypass modules
It is specifically designed for automatic-transmission applications.
Does the Compustar CS9920-AS Need a Bypass Module?
Many modern vehicles do.
Factory immobilizers can prevent an aftermarket remote starter from starting the engine unless the vehicle receives the correct authorization.
Depending on the application, the Compustar CM900-AS can work with compatible bypass/interface hardware such as Compustar/Firstech-supported vehicle interfaces.
The required module depends on:
- Year
- Make
- Model
- Trim
- Ignition system
- Factory immobilizer
- Vehicle network
Some interfaces also require vehicle-specific programming.
If immobilizer authorization isn’t handled correctly, the vehicle may crank but refuse to run—or start and immediately stall.
Our engine cranks but won’t start guide explains why security and immobilizer faults should always be considered when a vehicle cranks normally but refuses to stay running.
Professional Installation Recommended
This is not a plug-and-play universal remote starter.
Installation can involve:
- Constant power
- Ignition
- Accessory circuits
- Starter circuit
- Brake input
- Hood safety
- Door triggers
- Trunk trigger
- Power locks
- Parking lights
- Siren
- Security LED
- Shock/tilt sensor
- Factory alarm
- Factory immobilizer
- Vehicle data network
Professional installation is strongly recommended.
Remote start has the ability to start an unattended engine, so brake shutdown, hood safety and takeover logic need to work correctly.
Optional DroneMobile Smartphone Control
The Compustar platform can also be expanded with DroneMobile using compatible additional hardware.
DroneMobile changes the communication path from traditional RF remote control to cellular connectivity.
Traditional T11 control:
T11 Remote → RF → Vehicle
DroneMobile:
Smartphone → Cellular Network → Drone Module → Vehicle
That can provide vehicle control from virtually anywhere with cellular connectivity.
Depending on the DroneMobile hardware and service plan, supported features can include:
- Smartphone remote start
- Lock
- Unlock
- Vehicle status
- Security alerts
- GPS vehicle location
- Location history
- Additional connected features
Is DroneMobile Included?
The specific CS9920-AS package should be checked carefully.
If your physical package is being sold with optional Drone X2MAX-LTE expansion, then that LTE module is not included unless explicitly stated in the package contents.
DroneMobile connected services may also require a paid subscription.
Do not advertise unlimited-range smartphone control or GPS as built into the base CS9920-AS unless the appropriate Drone hardware is actually included.
Does the Compustar T11 Have GPS?
No.
The T11 itself is a long-range RF remote.
Its 3-mile advertised range does not mean it contains GPS.
GPS tracking requires compatible DroneMobile hardware and the appropriate service configuration.
That’s an important distinction:
T11 = long-range RF control
DroneMobile = cellular smartphone connectivity
DroneMobile GPS service = vehicle location features
They complement each other, but they are not the same technology.
Starter-Kill Capability
The CM900-AS security platform can support starter-kill functionality when appropriately installed with the necessary hardware.
Starter interruption adds another layer beyond siren and sensor protection.
Think of the security stack like this:
Visible LED → deterrence
Shock/tilt sensor → detection
Door/hood/trunk monitoring → intrusion detection
Siren → attention
2-way remote → owner notification
Starter interruption → makes starting the vehicle more difficult
That’s much more useful than relying on a siren alone.
Compustar T11 vs. a 1-Mile Viper System
This is an excellent comparison for Pro Street shoppers.
Systems such as the Viper 5706V, 5808V and 5908V operate in the long-range premium security/remote-start category.
Their maximum advertised RF range is typically around the 1-mile class.
The Compustar T11 platform pushes maximum advertised range to 3 miles.
For a shopper specifically prioritizing maximum RF range, the T11 has a clear merchandising advantage.
Compustar T11 vs. Viper 5908V
Compustar T11 System
- Up to 3-mile advertised range
- 2-way LCD remote
- IPX-7 waterproof remote
- Rechargeable battery
- Security + remote start
- Impact + tilt sensing
- DroneMobile expansion
- Automatic-transmission CM900-AS platform
Viper 5908V
- Up to 1-mile advertised range
- 2-way color LCD remote
- Rechargeable USB-C remote
- Security + remote start
- Impact sensing
- SmartStart Pro expansion
The Viper emphasizes the modern color-LCD user interface.
The Compustar emphasizes extreme RF range and remote durability.
Neither approach is automatically better.
It depends on what matters most to the buyer.
Who Should Buy the Compustar CS9920-AS?
This system makes the most sense for drivers who want:
Maximum traditional remote range.
The T11’s up-to-3-mile rating is the headline feature.
2-way confirmation.
You want to know that your remote-start, lock or security command was received.
Remote start and security together.
One integrated system handles both jobs.
Wheel and vehicle protection.
Shock and tilt sensing adds protection beyond simple door monitoring.
A durable remote.
The IPX-7 waterproof T11 is designed for everyday abuse.
Future smartphone connectivity.
DroneMobile can be added with compatible hardware and service.
For someone parking twenty feet outside the kitchen window, three miles of range is probably overkill.
For someone working in a massive industrial complex or parking several blocks away?
Suddenly it makes a lot more sense.
Compustar CS9920-AS Features
Brand: Compustar
Model / Bundle: CS9920-AS
Control Module: CM900-AS
System Type: 2-Way Security + Remote Start
Primary Remote: T11 2-Way LCD
Maximum Advertised Range: Up to 3 miles under ideal conditions
RF Technology: Digital Spread Spectrum
Primary Remote Waterproof Rating: IPX-7
Primary Remote Battery: Rechargeable lithium-ion
Secondary Remote: G17-series remote; verify exact included model
Remote Start: Yes
Vehicle Security: Yes
Keyless Entry: Supported
Shock Detection: Yes
Tilt Detection: Yes
Security Sensor: Shock Sensor II
Door Monitoring: Supported
Hood Monitoring: Supported
Trunk/Hatch Monitoring: Supported
Alarm Siren: Included per package configuration
Security LED: Included per package configuration
Starter Kill: Supported with appropriate installation/hardware
DroneMobile Compatible: Yes
GPS: Requires compatible DroneMobile hardware/service
Smartphone Control: Requires compatible DroneMobile hardware/service
Transmission Compatibility: Automatic transmission with CM900-AS
Vehicle Bypass/Interface: May be required
Professional Installation: Strongly recommended
Frequently Asked Questions
What is the Compustar CS9920-AS?
It is an all-in-one Compustar vehicle-security and remote-start system built around the CM900-AS controller and a premium T11 2-way LCD remote package.
How far does the Compustar T11 work?
Compustar rates the T11 for up to 3 miles of maximum range under ideal conditions.
Is the Compustar T11 a 2-way remote?
Yes. The T11 provides 2-way command confirmation and supported security alerts.
Is the Compustar T11 waterproof?
Yes. Compustar rates the T11 remote IPX-7 waterproof.
Is the Compustar T11 rechargeable?
Yes. It uses an internal rechargeable lithium-ion battery.
Does this Compustar system include remote start?
Yes. The CM900-AS is a combined remote-start and security controller.
Does the Compustar system have an alarm?
Yes. The CM900-AS platform supports complete vehicle security with sensor, siren and entry-monitoring integration.
Does it detect someone jacking up the car?
The included Shock Sensor II provides tilt sensing in addition to dual-stage impact detection when properly installed and configured.
Does it monitor doors, hood and trunk?
Supported vehicle entry points can be monitored when properly integrated. Exact implementation depends on the vehicle.
Does the Compustar CS9920-AS have GPS?
Not inherently. GPS requires compatible DroneMobile hardware and the appropriate connected service.
Can I control it from my phone?
Yes, with compatible DroneMobile hardware and service.
Is DroneMobile included?
Verify the exact package. If your CS9920-AS listing specifies Drone X2MAX-LTE as an optional accessory, it is not included with that package.
Does DroneMobile require a subscription?
Connected DroneMobile services can require an ongoing service plan.
Does the CS9920-AS work with manual transmissions?
The CM900-AS control module is designed for automatic-transmission vehicles, not manual-transmission remote-start applications.
Does my car need a bypass module?
It may. Many vehicles with factory immobilizers require a compatible vehicle interface or bypass module.
Does it include starter kill?
The CM900-AS security platform supports starter-kill capability when properly installed with the necessary hardware.
Is the T11 better than a 1-mile remote starter?
If maximum RF range is the priority, the T11’s advertised 3-mile maximum range gives it a major advantage. A 1-mile system may still be more than adequate for normal residential use.
Get Serious Range Without Giving Up Security
The Compustar CS9920-AS with T11 2-Way LCD Remote isn’t just another remote starter.
It combines a 3-mile-class premium RF remote, 2-way confirmation, IPX-7 waterproof construction, rechargeable operation, remote engine start, impact and tilt detection, intrusion monitoring and complete aftermarket security into one system.
And if traditional RF range eventually isn’t enough, the Compustar ecosystem leaves room for DroneMobile cellular expansion.
For a shopper looking specifically for maximum long-range control, that’s the biggest reason to consider the T11:
Three miles is a lot of parking lot.
There are no reviews yet.