Features Signal Output Indication: Features a single-channel output with effective low-level signaling, ensuring reliable performance for your projects Versatile Integration Options: Easily connect to relays for limit switch functionality or to active buzzer modules for alarm systems, enhancing project capabilities Wide Application Range: Ideal for motor speed detection, pulse counting, and position limiting, making it suitable for various electronic projects Compact and Portable Design: Small size facilitates easy transport and storage, ensuring convenience during use and project implementation and Safety Assurance: Subject to strict quality control measures, providing peace of mind with a high safety factor for reliable Features: 1、With signal output indication, single-channel signal output, output effective signal is low level 2、The module can be connected to a relay to form functions such as limit switches, or it can be connected to an active buzzer module to form an alarm. 3、Widely used in motor speed detection, pulse counting, position limit, etc. 4、Small size, easy to carry and store, easy to use and with good performance 5、Strict quality control and quality assurance, high safety factor, can be used with peace of mind Specification: Item Type: Infrared Photoelectric Sensor Module Size: Approx.12.5mm / 0.5in, 10mm / 0.4in, 20mm / 0.8in, 2m / 0.9in Main Chip: For LM393, cross-beam infrared head Working Voltage: DC 5v Output Form: Digital switch output (0 and 1) Use Wide Voltage LM393 comparator Package List: 10 x Infrared Photoelectric Sensor Module Package List 10 x Infrared Photoelectric Sensor Module