Free illustration materials

• 
  Airport metal detector gate
• 
  Call bell
• 
  Guitar effector
• 
  Person pressing the button
• 
  Parabolic antenna
• 
  Person who turns LED poi (female)
• 
  Drink bar
• 
  Traffic light that produces sound
• 
  Micro servo motor
• 
  Transistor
• 
  Robot contest (giant)
• 
  People who care about various security cameras (elderly)
• 
  Call bell
• 
  Person reading the manual (male)
• 
  Clamp meter
• 
  Toy motor
• 
  Cyborg
• 
  Wireless microphone
• 
  Mail order trouble (machine-male)
• 
  Traffic light for railway
• 
  Mark of strong magnetic field caution
• 
  Factory worker operating the machine
• 
  Metal scrap
• 
  Solar panel fall accident
• 
  Cable drum
• 
  Boy who is getting along with the robot
• 
  Commercial coffee maker
• 
  Theremin
• 
  Microscope
• 
  Mark forbidden to record

• 
  Various pedestrian crossings, traffic lights and pedestrians (girl)
• 
  Thermometer
• 
  A person who calls a nurse with a nurse call
• 
  A person who makes weapons with a 3D printer
• 
  Dome-shaped security camera
• 
  TV with color bars
• 
  Factory tour
• 
  Spraying pesticides
• 
  Car battery
• 
  Various LED traffic lights
• 
  Switch (Switch ON-Switch OFF)
• 
  Factory worker operating the machine