The Fluke DewK 1620A is a digital temperature‑humidity meter designed for laboratory and industrial use. It measures temperature with ±0.125 °C accuracy (H model) and relative humidity with ±1.5 %RH accuracy, and stores up to 400,000 timestamped readings.
The manual covers safety information, technical specifications, quick‑start procedures, sensor installation, power connections, measurement operation, alarm settings, and communication interfaces such as RS‑232, Ethernet, and optional ZigBee wireless. This manual is written in Chinese.