Energy-harvesting wireless room operating unit for the integrated measurement of temperature and relative humidity (rH version) and set point adjustment in residential and commerical buildings. Also available with rotary switch for fan stage adjustment, slide switch (for example 'Day/Night') and occupancy button. The SR04 x is mounted using the adhesive pad or screws and wirelessly transmits its values to receiving actuators or gateways, which forward the information to a BMS controller.

Measured valuestemperature, humidity, depending on the device
Radio technologyEnOcean (IEC 14543-3-10)
Frequency868 MHz, optional:, 902 MHz (Americas), 928 MHz
Power supplysolar cell, internal super cap, maintenance-free, optional: backup battery LS14250 (3,6 V)
Measuring range temp.0..+40 °C
Measuring range humidity0..100% rH non-condensing
Accuracy temperature±0,4 K (typ. at 21 °C)
Accuracy humidity±5% between 30..70% rH (typ. at 21 °C)
Measurement intervalWakeUp time = 100 sec. (default)
Transmission intervalevery 100 sec. at change >0,8 K, otherwise every 1000 sec., adjustable via jumper
Setpoint (P)potentiometer
Slide switch (MS)I/0, day/night
Rotary switch (S)for fan stage adjustment (max. 5 stages), 5-stages (auto,0,I,II,III), 2-stages (0,I), 3-stages (0,I,II), 4-stages (0,I,II,III)
Button (T)for presence detection
EnclosurePC, pure white
Protection (IP)IP30 according to EN 60529
Ambient condition0..+40 °C, max. 85% rH non-condensing
Weight50 g
Mountingto be mounted flat onto the surface using adhesive foil (included) or screws
Delivery contentadhesive foil
Notesintegrated battery backup possibility for usage in dimly lit rooms
Contact

Contact us:


Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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