显示器采用七段共阴数码管。该测试仪具有结构简单，成本低廉，精度较高，方便实用等特点。
Seven-Segment display using digital tube were overcast. The tester has a simple structure, low cost, high accuracy, convenient and practical and so on.
研究了基于集成心跳探测芯片的心跳测试仪，介绍了其组成部分，即反射式红外传感器，单片机和LED显示器。
Studies heart rate testers based on integration heartbeat detection chip and introduces other components of the testers such as reflective infrared sensor, single-chip and LED display.
该系列测试仪是导电薄膜（ITO膜等）制造厂家和器件（液晶显示器等）制造厂家的理想仪器。
They are the desirable instruments for the manufactories of the conducting film (ITO film) and the devices (liquid crystal indicator etc).
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