Description
The Cartell CP4 Free Exit System with 200 ft cable is a professional-grade vehicle detection solution engineered to provide dependable hands-free exit control for automatic gate operators. Utilizing advanced magnetometer technology, the CP4 detects moving metal vehicles and triggers gate opening without requiring loop detectors, pressure switches, probes, or above-ground sensing devices.
Designed specifically for free-exit gate applications, the CP4 offers a dedicated hard-wired solution that delivers reliable vehicle detection while minimizing installation complexity and maintenance requirements. The included 200 ft direct-burial cable makes this version ideal for installations where the sensor location is farther from the gate operator or control equipment.
Unlike traditional loop systems that require extensive trenching and pavement cutting, the CP4 installs quickly and easily while delivering exceptional long-term performance. Adjustable sensitivity settings allow installers to optimize detection performance for varying site conditions and vehicle types.
The weather-resistant sensor features a rugged IP68-rated enclosure designed for underground installation in demanding environments. Compatible with AC, DC, and solar-powered gate systems, the CP4 provides a versatile solution for residential, commercial, agricultural, and industrial applications.
Key Features
- Professional hard-wired free-exit vehicle detection system
- Advanced magnetometer sensing technology
- Detects moving metal vehicles without loops or pressure switches
- Includes 200 ft direct-burial sensor cable
- Adjustable sensitivity settings
- Compatible with AC, DC, and solar gate operators
- SPDT relay output with N.O. and N.C. contacts
- IP68-rated underground sensor enclosure
- Weather-resistant direct burial installation
- Ultra-low standby current consumption
Benefits
- Reliable hands-free gate exit activation
- Eliminates costly loop detector installations
- Ideal for long-distance gate installations
- Reduces false alarms and nuisance activations
- Fast and simple installation
- Works with virtually all automatic gate operators
- Long-term maintenance-free operation
- Adjustable sensitivity for varying site conditions
- Excellent performance in harsh outdoor environments
Applications
- Residential driveway gates
- Commercial gate systems
- Farm and ranch entrances
- Industrial facilities
- Storage facilities
- Gated communities
- Solar-powered gate systems
- Long-distance gate installations requiring extended cable runs
Specifications
- Model: CP4
- Manufacturer: Cartell
- Detection Technology: Magnetometer Vehicle Detection
- Cable Length: 200 ft
- Power Requirements: 8–24 VAC or 8–30 VDC
- Standby Current: 30–70 µA max
- Alarm Current: 40–50 mA max
- Relay Type: SPDT Floating Form C
- Relay Contact Rating: 1 Amp @ 24 VDC
- Relay Time: 2–3 Seconds
- Operating Temperature: -25°F to 140°F (-32°C to 60°C)
- Sensor Rating: IP68
- Sensor Diameter: 4.5 in
- Sensor Height: 2.5 in
- Warranty: 3 Years
What's Included
- 1 × Cartell CP4 Vehicle Detection Sensor
- 200 ft Direct-Burial Cable
- Installation Documentation
Ideal For
The Cartell CP4 with 200 ft cable is ideal for gate installations where the sensor must be located farther from the operator, providing dependable free-exit vehicle detection while reducing installation costs and ongoing maintenance compared to traditional loop systems.

