Sensor Current ZENTAR 20A Residual AC Magnetic Current Sensor ZCT210 buy it!
$8.60-$10.00
AkuSense Infrared proximity sensor Obstacle Avoidance Photoelectric Sensor Proximity Switch Detection Range Adjustable buy it!
$25.58-$35.29
5-24V DC NPN PNP Slot Type Optical Sensor IP65 Waterproof Infrared Photoelectric Sensor buy it!
$4.00-$7.00
KJT Infrared Area Light Curtain Sensor Axis Distance 20mm Low Cost Light Curtain buy it!
$58.20-$232.00
Infrared Area Security Photoelectric Safety Light Curtain Sensor
$76.43-$95.27