... 4.Good anti-vibration 1.Basic introductionSNQ0640 light curtain series, sensor section size is 53 ×35,structure compact,beautiful outlook,mainly ... machinery, woodworking machinery, three-dimensional garage, and other dangerous area's protection.SNQ0640 series,plane mirror reflect, protective height 200 ... SNA1620-N)Notes Notes *Identifies the parameters for the selected Infrared Area Sensor SNQ0640