Feature: Smart car chassis tracing car Robot car chassis with code disk Ideal for DIY Mechanical structure is simple, it is easy to install This car is the tachometer encoder With a 4 AA battery box (batteries not included) Can be used for distance measurement, velocity Can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control Size: 20 x 14cm (L x W) Wheel size: 6.5 x 2.7cm (Dia. x H) Note: Motor power supply is 3V ~ 6V. All the parameter above is tested without load. The car Chassis is transparent, you need to tear out protective paper. Package included: 1 x Car chassis 2 x Gear motor 2 x Car tire 2 x Speed encoder 2 x Fastener 1 x Universal wheel 1 x Screwdriver 1 x Battery box(batteries not included) All necessary screw and nut
