* Patented wrist design and internal battery of HV-1Plus makes the diagnosis more convenient; Only 1.1Kg, easy to operate and carry. * 5.7 inch high resolution color TFT LCD monitor forming a clear image under the sunshine for special treatment. * Obstetric measurement functions: gestational weeks and expected delivery of sows, cattle, dogs, horses, cats, goats,camels, sheep. * Scanning mode: B, 2B,4B,B/M，M.Interface pseudo dolor display (8 kinds). * Image storage: 256 frames permanent storage,without loss of image when powered off. * Display back-fat ruler for easy visual inspection of back-fat thickness. * Measurement data can be exported EXCEL table. Convenient for users to manage pregnancy test records. * High-speed USB socket; support large-capacity flash disk and mouse. * Dual-mode TV output: PAL/NTSC, connecting to thermal printer and ultrasonic working station. * High-capacity lithium Battery(2400mAh), more than 200minutes work.