Energy-harvesting wireless room sensor for measuring temperature in living and office spaces. The SR04 transmits its measured temperature to EasySens® receiving actuators or gateways, which forward the information to a BMS controller.

Measured valuestemperature
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
Accuracy temperature±0,4 K (typ. at 21 °C)
Measurement intervalWakeUp time = 100 sec. (default)
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, for devices with operating elements please refer to product SR04 x
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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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