Instrument and equipment and accessories (40) Screw fastener hardware (19) Fans/radiators/ thermal management products (8) Light-emitting diodes (6) Ambient light sensors (6) Battery holder/Clip accessories (6) Relay socket accessories (5) Screwdriver/tweezers/wrench tools (4) Development board kit (2) LED display modules (2) Data cables and signal cables (2) Backplane connectors (1) Soldering and desoldering (1) Switching power supply ICs (1) Switch accessories-caps (1) Batteries (1) Bipolar transistor (triode) (1) Test and measurement (1)