... circuit board all the gold-plated, internal electromagnetic shielding letter software digital filter (industrial grade) factory, 48 hours after high- ... of 49mm or a M49 × 1.5's gong jack.Ultrasonic Sensor Main technical characteristics: 1, non-contact measurement, environmental protection, ... be measured position. 6, optional host computer or PC software, networking, a host can be 2 to 128 extensions ...