The QNCTK3-16 Split Core Current Transformer is a precision open-type clamp CT sensor designed for accurate and convenient AC current measurement. Its split-core, open-type design allows for easy installation directly onto existing wiring without any interruption to the circuit. With a rated AC input range spanning from 10A up to 100A and a safe, low DC voltage output of 1V to 5V, this sensor is ideal for interfacing with microcontrollers, data loggers, and energy monitoring systems. The QNCTK3-16 delivers an impressive 0.5% accuracy and supports a broad operating frequency range of 50Hz to 200KHz, making it suitable for a wide variety of electrical measurement applications. The black wire outputs 0V and the red wire outputs 5V DC, simplifying wiring connections. Compact and lightweight at approximately 90 grams, this current transformer is easy to deploy in tight spaces. Whether you are building a home energy monitor or an industrial power management system, the QNCTK3-16 provides reliable, precise current sensing in a durable and versatile package.