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7404 Hex Inverting NOT Gate IC | Pro Tronix
High-speed 7404 hex inverter NOT gate IC in a DIP-14 package. Featuring six independent logic inverters operating on a standard 5V supply, this chip is ideal for signal inversion, control logic conditioning, and clock oscillator builds.
LM358 Dual Operational Amplifier IC | Pro Tronix
Industry-standard LM358 dual operational amplifier IC in DIP-8 package. Operates on single 3V–32V power supplies, making it perfect for sensor signal amplification, active filters, and analog circuits!
LM555 Precision Timer IC | Pro Tronix
Classic LM555 precision timer IC in a DIP-8 package. Features 200 mA output drive and 4.5V-15V operation. Calculate frequencies online and bundle with breadboards, jumper wires, capacitors, and resistors!
LM741 Op-Amp IC | Pro Tronix
Classic LM741 single operational amplifier IC in DIP-8 through-hole package. Perfect for analog signal processing, educational circuits, and linear amplification!
Right-Angle Liquid Water Level Float Switch (DC 220V) | Pro Tronix
MAX30100 Pulse Oximeter Heart Rate Sensor Module
“An integrated pulse oximetry and heart-rate monitor sensor solution. Ideal for wearable devices and medical monitoring projects.”
Laser Module 650NM 5V
“A compact, high-efficiency 5V laser diode module emitting a bright red dot. Perfect for security systems, laser pointers, and optical experiments.”
LM393 Infrared Slot-Type Photoelectric Speed Sensor Module
“High-precision infrared correlation sensor for counting, speed measurement, and position detection. Featuring the LM393 comparator for a clean and stable digital signal.”
“The LM393 Photoelectric Sensor is an essential module for robotics and industrial automation. It uses a 5mm wide slot to house an infrared transmitter and receiver. When an object passes through the slot and breaks the light beam, the module output changes state. This makes it perfect for measuring motor speed (RPM) or counting objects on a conveyor belt.


