Feature●Precise timing for one person to move from start to end●Effective Laser Distance: 0-8 m, Wireless Communication Distance: 500 m●Rated voltage and flow: 5V 2A, use a modified power bank●When testing at close distance, please make sure the laser sensor and display screen are more than 2 meters away to avoid identical channel cross talks and communication errors between antennas●Demo Video: https://youtu.be/FXm7Z-d1vQgDescription
Precise timing for one person to move from start to end