• Compact and flexible overall design. Integrated host and probe design. • One-hand operating host. Holding the device, press the Test button with thumb to achieve the test and the result directly and efficiently. • Accompanied by the army-green shell and the membrane keyboard design, the overall appearance looks more atmospheric and resistance to use. • The probe is fully enclosed design to prevent water spray and splash water. • Hook bolt rope design. Lanyard around your wrist to avoid the drop-off while using. • Smaller host similar with cigarette size, pocket-carrying design. • Adopting digital tube design to resolve the reading problem while under sunshine and improve the efficiency. • USB port design for host charge. • Built-in battery to drive the host for 10 hours outdoor work. Auto switch-off after 2 minutes non-work to save power. • Easy-operation. One-key to measure 3 levels back-fat thickness. Measuring range is 4~35mm and the error is ±1mm. You can store 99 measurement data by serial number, which won’t be lost even while shutdown.