... Shell with sturdy and good acoustic properties NLEPF synthetic material, its shape delicate appearance, waterproof, dustproof, can be adapted ... 49mm or a M49 × 1.5's gong jack.Ultrasonic Sensor Main technical characteristics: 1, non-contact measurement, environmental ... slow moving target capture.Technical parameters: Operating voltage: 12V or 24V Detection methods: continuous detection 1hzs Power: ...