Acxico 1Set Sound/Light Alarm Motion Senser Security Infrared Laser Alarm Switch DIY Kits Black

Sound / Light Alarm Motion Senser Security Infrared Laser Alarm Switch DIY KitsDescription:How it works: In this study, the transistor as a switch.1: No alarm. When a laser is irradiated onto the photosensitive resistor, transistor ended, active buzzer power off, stop chirping; light off.2: Alarm. When the laser is blocked, no light exposure to the photosensitive resistor, the transistor is turned on, the buzzer to get the power starts singing while working indicator lights, sound and light alarm.The receiving end:The first pin connections: battery box red line, the buzzer anode (long pin), light emitting diode anode (long pin), photoresistor a pin.The second pin connections: Buzzer another pin, a light emitting diode cathode (short pin), the transistor first pin.The third pin connections: photoresistor another pin, pin a second transistor, the potential for a single side of the pin.The fourth pin connections: battery box black wire (ground), the third prong transistors, potentiometers two pins on one side of any one pin.The transmitter end:Laser head red wire to the battery box red line, the laser head in addition wire to the battery box black wire. Joints can be used to trap heat shrink tubing, then heated slightly to prevent short circuits.Note:Light shooting and different displays may causethe color of the item in the picture a little different from the real thing.The measurement allowed error is+/-1-3cm.We highly appreciate all custome rsopinions to improvethe selling, also if anything you unsatisfied, please contact us for probable best solution. Thank you!Package Included: 1Set Sound / Light Alarm Motion Senser Security Infrared Laser Alarm Switch DIY Kits(If there are any problems with the product, please send us pictures.Tell us more details about this problem)

• Mainly for laser toys, various level meter, instrument and other ground
• Ohm's law: U = I * R; Transmit power: 150mW; Standard size: Φ6 * 10.5; Spot mode: point-like spot, continuous output; Laser wavelength: 650nm; Optical power: <5mW; Supply voltage: 3VDC; Working current: <25mA; Spot size: 15 meters at the spot for φ10mm ~ φ15mm
• Tips: This laser is a low-power laser, and a small flashlight laser tube, as part of the safety laser.But laser harmful to the eyes, please do not aim at eyes.Note: AA batteries are NOT included. contain 2pcs 2AA Battery holder.
• Package Included:1Set Sound / Light Alarm Motion Senser Security Infrared Laser Alarm Switch DIY Kits(If there are any problems with the product, please send us pictures.Tell us more details about this problem.)
• Thank you so much for your purchasing from our store.Any question ,please feel free to contact us.