Pyroelectric PIR sensors for surveillance and security cameras. Reliable motion detection with custom and OEM options from Eltec Instruments, USA. Eltec Instruments manufactures pyroelectric infrared (PIR) sensors for surveillance and security camera applications. Our sensors detect changes in infrared radiation, making them well suited to motion detection, camera triggering, and perimeter monitoring. Key highlights: Pyroelectric detectors for security and surveillance systems Standard and custom configurations to match your design OEM support, including detector and amplifier combinations