Description
Product Overview
The Lectrobox Zero Crossing Detector is a compact and efficient device designed for precise measurement of AC input signal polarity. It features a 3.3V unipolar square wave output that is compatible with a wide range of interval counters, logic analyzers, and other measurement equipment. With dimensions of 2.17 x 1.18 x 0.39 inches and a weight of just 1 ounce, this detector is highly portable and easy to integrate into various setups. It operates on 12VAC input via a 5.5mm barrel jack and consumes less than 10mA of power, ensuring energy efficiency. The default response time is 500 microseconds, but it can be reduced to under 100 nanoseconds by removing a capacitor, though this increases sensitivity to transients. The output rise time is consistently under 100 nanoseconds, providing fast and accurate readings. The unit includes four M3 mounting holes arranged in a 50mm x 25mm pattern for secure installation.

Usage
This zero crossing detector is ideal for industrial and scientific environments where accurate AC signal analysis is critical. It is commonly used in circuit tracing, power quality monitoring, and electronic testing applications. Professionals in fields such as electrical engineering, research laboratories, and manufacturing will find it invaluable for diagnosing and optimizing AC systems. The device is suitable for both bench-top setups and integrated systems, thanks to its compact size and mounting options.
Why Choose Us
Lectrobox delivers superior quality with this detector, emphasizing precision engineering and reliable performance. The product stands out due to its fast response times, low power consumption, and compatibility with standard measurement tools. Manufactured by Lectrobox, it benefits from rigorous testing and adherence to industrial standards, ensuring long-term durability and accuracy. Customers can trust in its consistent performance, backed by positive reviews and a high best-sellers rank in its category.
Key Features
- Compact zero-crossing detector for accurate AC input signal polarity measurement
- 3.3V output compatible with interval counters and logic analyzers for versatile use
- Low power consumption under 10mA for energy-efficient operation
- Fast response time as low as 100ns with capacitor removal for quick diagnostics
- Includes four M3 mounting holes for secure and flexible installation
FAQ
What is the input voltage requirement for this detector?
The detector requires a 12VAC input supplied through a standard 5.5mm barrel jack.
Can the output be used with other measurement devices?
Yes, the 3.3V unipolar square wave output is designed to be compatible with many interval counters, logic analyzers, and similar equipment.
How do I reduce the response time for faster measurements?
You can remove a capacitor from the circuit to achieve a response time under 100 nanoseconds, though this may increase sensitivity to transient signals.
Is the detector easy to mount in different setups?
Absolutely, it features four M3 mounting holes in a 50mm x 25mm pattern, allowing for straightforward installation in various configurations.
What is the power consumption during operation?
The detector uses less than 10mA of power, making it an energy-efficient choice for continuous use in industrial applications.




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