Check the listing for details. 50m/164ft Laser Distance Measuring Sensor Range Finder Module Diastimeter. Condition: New. Listed at 82.99 USD. 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