The DM650HM is a battery-powered digital humidity and temperature gauge that displays relative humidity, temperature, dew point, and delta temperature on a 6-digit LCD screen. Its advanced display mode can also show one or two custom 32-character messages, with the ability to split a process range into eight user-set bands, each with its own message, making it easy to communicate status at a glance in BMS, food storage, or environmental monitoring applications.
A single volt-free changeover relay can be configured for high, low, or deviation alarms on any of the four measured values, with a battery-monitoring function built in. The DM650HM’s data logging function records up to 5000 time and date-stamped points including %RH, temperature, and relay state, readable either via USB to a text file or via NFC to a free Android app that can graph and forward the data by email or Bluetooth. Wall and duct-mounted versions are both available.