This car has the tachometer encoder- speed encoder 1:48
With a 4 AA battery box and power switch (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)
Instruction Assembly - Not 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 Battery box(batteries not included)
All necessary screw and nut
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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