... Voltage PT-FTM50;Series of laser displacement sensor1, FTM series laser displacement sensor is introduced:FTM series laser displacement sensor is Beijing fly cinda laser ... ,Working voltage 5 v or 18 to 24 v.16,Current: less than 170 ma.17,RS232, RS485 or RS422 output ... displacement sensor device maintenance and maintenance 1, clean and dry. 2, blow off the dust on the mirror. 3, please do not contact ...