The CP-4 Automatic Gate Opener is a self-contained exit sensor that opens gates automatically as vehicles leave, offering a hands-free solution for electric or solar-powered systems. Using advanced magnetometer technology, it detects only moving steel, eliminating false triggers from people or animals, and integrates easily with any gate operator using universal voltage and relay compatibility.
With no external circuit board, the CP-4 wires directly to the gate’s free exit terminals, making installation quick and clean. Its weatherproof, conduit-ready housing and ultra-low standby current, 95% lower than standard systems, make it especially ideal for solar gates. For best results, install away from the gate, ensuring vehicles pass over the sensor at a minimum of five miles per hour.
Gate Crafters offers more expert assistance than anyone.
If you need help deciding if this gate opener has the abilities that are right for your gate we have live application specialists available 9am - 9 pm EST 7 days a week or try our exclusive gate opener recommendation tool 24 hours/day.
DURABLE DESIGN
- IP Rating: 68
- Heat resistance
- Lightning protection
- Proven digital circuit
- Weather-resistant cable
- Strength rating: 9.53 ton-force (8646 kgf)
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EASY TO USE
- Self-contained system
- Conduit-ready housing
- Industry-standard wire colors
- Low standby current results in less battery maintenance for solar applications
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VERSATILE
- Sensitivity adjustment
- Universal voltage AC and DC
- Works with power or solar gate operators
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Gate Crafters has the resources you need. How do you use your gate opener system once you get it? Gate Crafters is the only retailer to give a real answer to this question. We have develop videos for installing many of our gate openers and products and write DIY focused manuals for most gate openers and have individual instructions for each accessory to be installed with each gate opener. |
Power Required |
8 - 24 VAC; 8 - 30 VDC |
Standby Current |
30 - 70 microamps (μA) max. |
Alarm Current |
40 - 50 milliamps (mA) max. |
Relay Contacts |
SPDT, floating, N.O. or N.C. (Form C) |
Relay Contact Rating |
1 amp/24 VDC (1 mA at 5 VDC min. load) |
Relay Time |
2 - 3 seconds |
Temperature Range |
-25°F - 140°F |
Dimensions |
4.5 in diameter x 2.5 in H (11.43 cm diameter x 6.35 cm H) |
Slip Joint |
0.5 in L x 0.875 in ID (1.27 cm L x 2.22 cm ID) |
Weight |
5 lbs. (2.27 kg) with 100 ft. cable |
Warranty |
3 Year Limited Warranty |
- Self-Contained Sensor "Puck"
- Attached Cable (100 ft., 200 ft., 300 ft., and 500 ft. cable options)

For over a decade, Gate Crafters has been the premier online retailer of gate openers and accessories. With our extensive technical and installation expertise, we are authorized to serve the DIY market. We believe customers should have the opportunity to take pride in their projects, whether installing or troubleshooting a gate opener. Everyone deserves the option to enjoy high-quality products without the need to hire help.
At Gate Crafters, we empower you to install confidently by providing access to our trained technical staff seven days a week from 9 AM to 9 PM EST. By choosing to DIY your gate opener system, you can save thousands of dollars over its lifetime while gaining valuable knowledge about your installation and how the system operates. This understanding will make it easier to troubleshoot any issues and perform routine maintenance in the future.
Gate Crafters is the DIY factor. Gate Crafters further adds to most of our gate openers for easier DIY installation. We have developed exclusive components (example: easy adjustable mounting brackets), customized instructions, and offer a full spectrum of accessories to truly cover all aspects of the installation of your gate opener. In addition we have the largest staff of factory trained technicians in the US. |
- Order specific customized accessory wiring instructions
- 360 degree accessories - we can take you through exit, entry, safety, power, and all other minute details to create a fully rounded kit.
- Free 24/7/365 Installation Support
- Free 7 day/week Technical Support
- Largest Number of Certified Techs in America
- Free assistance to find the right gate opener for your gate
- Free systems design assistance to match the right accessories to fit your needs.
- Extremely competitive pricing
- Free shipping on all accessories purchased with a gate opener
- We stock replacement parts
- Many brands of many types of accessories, enough to handle just about any operational situation you can imagine
Gate Crafters has actual experience. We have a testing area, we have factory and internal training courses, we build gates and have our own gates that are automated, we attended all industry trade shows in multiple countries and are a member of the AFA, and we pay visits to our chosen manufacturers' factories. All these factors are what have lead to us having so many exclusive additions. When you see and actually use as many products as we have you tend to have many ideas for minor changes that have major impacts. We acted on these ideas and have utilized them to help thousands of customers automate their gates. |
Manual: Cartell CP-4 Manual
Manual: Cartell CP-4 Spec Sheet
Manual: Cartell CP-4 Wiring Diagrams
QB ID: CP-4