USER MANUAL
ETHSA / ETHSU
ENOCEAN TEMPERATURE AND HUMIDITY SENSOR
© 2022 EnOcean | www.enocean.com
F-710-017, V1.0
ETHSx User Manual | April 2022 | Page 6/27
2.2
Technical Data
Primary power supply
Solar with indoor light, min. 50 lx
Auxiliary power supply
Option for backup battery (CR1225, not included)
Antenna
Internal helix antenna
Radio standard / frequency
ETHSA: EnOcean 868.300 MHz
ETHSU: EnOcean 902.875 MHz
Data rate / modulation type
125 kbps / ETHSA = ASK, ETHSU = FSK
Radiated Output Power
ETHSA = typ. +5dBm
ETHSU = typ. +99
dBμV/m
Temperature sensor performance
Measurement range: -
20°C … +60 °C
Resolution: 0.1 K
Accuracy: ±0.5 K across entire range
Humidity sensor performance
Measurement range:
0 % … 100 % r.h.
Resolution: 0.4 % r.h.
Accuracy: ±4.5 % r.h. across entire range
±3.0 % r.h. between 20 … 80 % r.h.
Measurement cycle time
Once every 100s
Immediate transmission threshold
Change by >
±
0.5 K or >
±
3% rh versus last transmission
Sign-of-life transmission
Measurement data update once every 11-24 minutes
(by random)
Teach-in telegram trigger
Pushbutton behind hole inside housing
Teach-in telegram indicator
LED shining through housing
Start-up time with empty energy store
typ. < 2.5 min @ 400 lx, 22°C
1)
Sustain condition for battery free operation
min. 1200 lxh per day (22°C)
Fully charged condition
6400 lxh (22°C)
Operation time in total darkness
> 10 days
(energy storage fully charged, sign of live only, 22°C)
2)
Operation time with backup battery
5 years min. (total darkness, 22°C)
EnOcean module integrated
ETHSA: STM 350 for EU/UK with CE/UKCA
ETHSU: STM 350U for US/CA with FCC/ISED
EnOcean Equipment Profile (EEP)
A5-04-03
SIGNAL 0x06 (Energy Level Reporting)
SIGNAL 0x0E (Entering Transport Mode)
Note 1:
Charging time from empty energy store until a teach-in telegram can be sent
Note 2:
Operation time from a fully charged energy store if telegrams sent on average every
17.5 minutes (signs-of-life). To maintain the performance, please refer to chapter 2.3!
