The perseids DIY Robot Smart Car Chassis Kit Educational Toy with Speed Encoder, 4 Wheels and Battery Box for Adult Age 16+ (4 Wheels)

Feature:
Simple mechanical structure, it is easy to install.
Smart robot car with code disk, ideal for DIY.
Can be used for distance measurement, velocity.
This car is the tachometer encoder.
Can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.

Specification:
Noise: <65dB
Size: 25 x 14cm (L x W)
Wheel size: 6 x 2.7cm (Dia. x H)
Motor power supply is 3V ~ 6V. All the parameter above is tested without load.

Installation steps:
STEP 1: Insert the fastener into hte chassis after tearing off the yellow protection wrap of the chassis,the fastener and the code wheel
STEP 2: Install the code wheel and fix the motor to the chassis .(Attention,the copper sheet of the leading wire of the motor should face outward,the same side of the wheel)
STEP 3: Fix the motor to the chassis ,then insert and tighten the screws.
STEP 4: Insert the screws and fix the battery container.
STEP 5: Insert the spacer and tighten the 8 screws to fix the hammer caster.Hold tight and insert the motor(protection fastener) to the wheel .

Note:
This car is the tachometer encoder.
Come with a 4 AA battery box (batteries not included).
The car Chassis is transparent, you need to tear out protective paper.

Package Included:
2 x Car chassis
4 x Gear motor (1:48)
4 x Car tire
4 x Speed encoder
8 x Fastener
1 x Battery box(batteries not included)
All necessary screw and nut.