Building Automation network Sensor for DSC, DAC, or DVC

This addition to the BACstat II family of network sensors and thermostats is a LINKnet only version of the DNS-24. The DNS-24L is an intelligent room sensor with a custom LCD display and 4 push buttons for user control. Both the LCD display and the push buttons can be fully programmed via GCL+ over the LINKnet network.


The DNS-24L is used for applications that require one or more low cost, programmable sensors with LCD display and push button control.


  • Built-in 10k½ thermistor
  • Optional terminal block for wiring a remote thermistor to the temperature input
  • Optional built-in humidity sensor
  • LINKnet communications
  • Programmable 3-value, 96 segment, LCD display (via GCL+ over LINKnet) with optional backlighting
  • 4 Programmable Buttons (via GCL+ over LINKnet)
  • Optional buttons for fan speed control when used with Delta Fan Coil Controllers (DFC’s)
  • Service port


3-value and various icons (96 total segments) with optional backlighting

Push Buttons

4 stylized momentary push buttons

Temperature Sensor

Thermistor Input – 10k½ @ 77ºF (25ºC)

Accuracy of +/- 0.36ºF from 32° - 158ºF (+/- 0.2ºC from 0 - 70ºC)

Display Resolution of 0.1 º

Stability of 0.24 ºF over 5 years (0.13 ºC)

Humidity Sensor

Accuracy of +/- 3%RH from 20% -80% RH

(linearized accuracy of +/- 3% to +/- 5% from

0-20% and 80-100% RH)

Display Resolution of 0.1%

Stability of < 0.5% RH/yr (typical)


8-bit processor with internal A/D, Flash, and RAM

Device Address

Set via DIP switches

Communications Port

Delta LINKnet @ 76800 bps

(maximum 12 devices, depending on the controller, with no more than 2 DFM devices per LINKnet segment)


Screw-type terminal connectors

Wiring Class

Class 2


24V AC

5 VA


32º to 131ºF (0º to 55ºC)

10 to 90% RH (non-condensing)


5 x 3.25 x 1 in. (12.7 x 8.3 x 2.5 cm)

0.3 lb. (120 g)





UL 916 Listed