Status DM650HM/B/A - Wall Mount with 128mm Stem - Humidity & Temperature Gauge With Data Logging, Alarm & Messaging

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£196.68 £163.90
Lead Time:
7 - 10 working days
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RoHS Compliant:
Product Compliance:
  • Wall Mount with 128mm Stem
  • M16 & M20 Side Entrys
Style Body Stem Option Base Entry Side Entry 1 Side Entry 2
DM650HM B (Wall Mount) A (128mm) 00 M16 M20



The DM650HM is a battery powered indicator with built-in sensors designed to display % relative humidity, temperature, dew point and delta temperature, on a 6- digit LCD display. The instrument offers an advanced display mode allowing the user to display not only process variables but one or two (1 – 32) character messages. This feature is further enhanced by the ability to split a process range into eight user-set bands, each band having independent userselected messages. The DM650HM has a changeover type relay with multiple programmable options.

  • %RH, temperature, dew point, delta t
  • Alarm relay / user set display messaging
  • USB and NFC interface
  • Battery powered
  • 5000 point data logger



The instrument is equipped with single volt-free change-over type relay. The user may select one of several actions including deviation operation, with fully adjustable set point and dead-band. An option is provided to trigger an alert event when a relay contact is on.

The relay can be used to alarm on any of the values of relative humidity, temperature, dewpoint or delta temperature. A battery monitoring function is also provided.


DM650HM also provides a powerful data logging function. The log points can be set up to 5000 points, each point is time and date stamped together with %RH, temperature and relay state information. The log rate is selectable in steps. The start of log can be delayed if required. Either fixed or rolling logs may be performed.

Two methods of reading the log are available. The USB configuration reads the log and allows the user to save to a text file. The NFC android interface allows data transfer to android phones or tablets, and using the downloadable App, the data can be graphed and forwarded by email, Bluetooth etc. The NFC interface is also capable of starting a new log with different log periods and modes.


The DM650HM can display any combination of the following process variables, % relative humidity, temperature, dew point and delta temperature.


Date and time can also be displayed with the input values. The real-time clock is used to record the data logged points.

DM650 Order Codes & Schematics