SPECIFICATIONS

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2 ma electrical flow: DC3V, standby, measuring 120 ma;
Laser type: 635nm, 1 mw.(red)
Range: 0.3 to 50 meters;
Measurement speed: 0.3-3 s
Typical accuracy: + / - 1 mm
Storage temperature: - 20-60 use temperature: -10-40
module  size: Approx  45*25*12mm(without screen)
Item weight: Approx:38g

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.
profession laser serial module Design and development,5-10pcs will be take more discount

Packet List:
1 X Rangefiner serial module

1X USB TO TTL 

1x english munal