Extech RH490 精密温湿度计
格令/磅（GPP）显示器的相对湿度精确度可达 2%
任何人，只要其工作依赖于湿度计算，都会喜欢 Extech 温湿度计-干湿球温度计。除了可在 30 秒内测量相对湿度外，这种手持式仪器还可以采集露点、湿球温度、温度和水蒸汽浓度（克/千克和格令/磅）。这种实用的工具可存储最大和最小读数，直到内存清空为止，并且包含一个数据保留按钮，用于快速波动的测量。配备便携箱和 9V 电池。
Resources & Support
Datasheet
Extech RH490 Datasheet
User Manual
Extech RH490 User Manual
Certification
Extech RH490 Declaration of Conformity
Export Restrictions
The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.