... Blind spot:0.3m~0.6m Non contact digital ultrasonic level sensor (WP380A) Description Adopt SMD technology, improving the reliability ... 30VDC)Display:4 bits LCDWork model: measure span or level optional4 wire outputMeasure range:0-5m,10m,15m,20mOutput: ... (20-30VDC),220VACDisplay:4 bits LCDWork model: measure span or level optionalPrinciple of measurementPrice, Package and Service1, Price : FOB SHANGHAI2 ...