高精度便携式湿度发生器北京长青科技开发公司王劲松我公司开发的ＥＨ系列高精度便携式湿度发生器，可以方便地检定机械湿度表和各种湿度传感器、湿度仪表等。其特点是：精度高、价格低、使用方便、湿度范围宽、响应快、体积小、可携带，适合国内企、事业单位和计量测试机... High-precision portable humidity generator Beijing Evergreen Technology Development Corporation Wang Jinsong EH series of high-precision portable humidity generator developed by our company, you can easily check the mechanical humidity meter and a variety of humidity sensors, humidity meters. Its features are: high precision, low price, easy to use, wide range of humidity, fast response, small size, portable, suitable for domestic enterprises, institutions and measurement test machine ...