Data Sheet for Product

Technical Specification Sheet
Document No. 149-485
November 2, 2015
Siemens Industry, Inc.
Page 1 of 4
Wireless Room Sensor (WRS)
Description
The Wireless Room Sensor (WRS) eliminates the
need to run wire between the Terminal Equipment
Controller (TEC) and its associated room temperature
sensor. The WRS communicates directly with the
Room Sensor Transceiver (RSX) mounted at the TEC.
Field binding can be done either by connecting the
WRS and RSX with a binding cable or using the HMI
on the RSX.
Figure 1. WRS (Full-Featured Model).
Features
 Five years of battery life with most applications.
 Frequency channel automatically changes as
required to avoid interference from other RF
devices.
 (Optional) Liquid Crystal Display – Displays room
temperature value, setpoint value (momentarily),
override condition, and diagnostic information.
 (Optional) Digital Setpoint Adjustment – The
sensor’s keypad provides error-free digital setpoint
adjustments in one-degree increments. Setpoint
values are momentarily displayed as changes are
made.
 (Optional) Occupancy Override button – Enables
an occupant to revert to an occupied control
schedule during the unoccupied cycle for a period
of time determined by the system operator.
Benefits
 Simpler, faster, and easier installation.
 Eliminates need for running any wire to the
sensors.
 Sensors can be easily moved.