| 摘要 |
This device will be hand held battery operated.It will be approx 10cm high,5cm wide, 3cm thick with an LCD and leds on top.It can be either swipe through or static, ie measure from the bowl to the jack at 31.5mm high above the ground.The green led will indicate closer red further away. Distances for measurements will be approx 6cm to 5metres |
