... ----1cm Blind spot:0.3m~0.6m Non contact digital ultrasonic level sensor (WP380A) Description Adopt SMD technology, improving the reliability of ... (20-30VDC),220VACDisplay:4 bits LCDWork model: measure span or level optionalPrinciple of measurementPrice, Package and Service1, Price : FOB SHANGHAI2, ... repair for quality warrantyOur other products Non contact digital ultrasonic level sensor (WP380A)