Compustar CS7900-AS 2-Way Remote Start and Alarm
- Item Weight: 1.1 pounds
- Number Of Items: 1
- Unit Count: 1
- Warranty Description: 1 year
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A feature-rich 2-way remote start and alarm system that performs well once correctly installed, suited to a professional install given the wiring complexity and lack of official DIY support.
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ASIN: B07HMX118WModel: 8542115767Category: Car Remote Starters
Overview
The CS7900-AS combines a 2-way remote start system with a full vehicle alarm, running the CM600 control module, a shock sensor, siren and LED behind a 3000-foot rated LCD remote.
- 2-way LCD remote, up to 3000 ft range
- CM600 control module plus shock sensor, siren and LED
- Door, hood and trunk intrusion sensors
- Compatible across vehicle types with the right bypass
Who it's for
Owners who want remote start and a genuine alarm system together, and who are either hiring a professional installer or have real 12-volt wiring experience themselves. Less suited to someone who just wants simple remote start, since the alarm hardware and separate bypass module add cost and install time.
Pros and cons
- 2-way LCD remote confirms start and reports alarm triggers
- Range reaches close to the advertised 3000 ft with correct antenna placement
- Loud, multi-tone siren and shock sensor for real intrusion detection
- Firmware is expandable for future sensors
- Requires a separate bypass module, sold apart, to fully replace the key
- Compustar offers little official support for self-installers
- Install instructions leave out details like turbo timer activation
- Professional installation can run into the hundreds of dollars
Performance notes
Range depends heavily on antenna orientation: one reviewer got only 200 to 300 feet with the antenna mounted vertically at the windshield center, then reached about 2500 feet after remounting it horizontally in the corner as Compustar recommends, just short of the advertised 3000 feet. The alarm layers several distinct tones through the siren when triggered, and the 2-way LCD remote reports back door, hood, trunk and shock sensor activity rather than just confirming a start.
Specifications
| Brand | Compustar |
|---|---|
| Model | 8542115767 |
| Dimensions & fit | |
| Item Weight | 1.1 pounds |
| Capacity & performance | |
| Maximum Range | 3000 feet |
| Audible Noise | 105 db |
| Compatibility & installation | |
| Compatible Devices | Cars, Trucks, Vehicles with DroneMobile support |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Number Of Items | 1 |
| Mfr Part Number | CS7900-AS |