Interface：2.5-2.8v TTL signal.by PC show date.three wire serial interface(the single chip microcomputer UART interface) ， 19.2KHZ.Start bit 1+8+1stopbit and no flow control 2ma electrical flow：DC3V standby， measuring 120 ma；
Laser type：635nm， 1mw.(red)
Range ：0.02 to 100 meters；
Measurement speed：0.3-3s
Typical accuracy：+/-2mm
Storage temperature：-20-60℃ use temperature：-10-40℃
Module size：Approx72*40*18mmmm(without screen)
Item weight：Approx：70g
Communication and control
Communication interface：serial communication(TTL) ，19.2K,baud rate parity bit：no parity， data bits：8；
Function：send capital letters”O”to open the laser，capital letters”C”to close the laser， capital letters”D”for measuring distance， capital letters”S”to view the module temperature and power supply
Instructions：open the laser， laser， a single
measurement， gets to the power supply voltage and temperature
100m laser distance sensor
