Table Top Centrifuge 12,000 rpm Multi-Purpose Model 1236
775 DC Motor DC 12V - 24V Max 12000 RPM Ball Bearing Large Torque High Power Low Noise Gear Motor Electronic Component Motor 2-Pack(with Bracket): Amazon.com: Tools & Home Improvement
GAFFRIG 4 5/8 ELECTRIC TACHOMETER 0-12000 RPM PLATINUM - 10021
Amazon.com: ELING Waterproof RPM Tachometer Gauge 0-12000RPM with LED Digital Adjustable Hour Meter and RPM Alarm 85mm with Backlight 12V/24V : Automotive