A simple instrument for indicating changes in atmospheric pressure.
显示大气压力变化的简单装置。
2
An instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.
The locale part is composed of intelligent sensor, remote indicatinginstrument and GPRS module. Various intelligent sensors and remote indicatinginstrument make up RS-485 communication network.