["Overview of ERS room sensors for measuring the room climate. ERS is enclosed in a room sensor box and designed for wall mounting. Inside the ERS there are five internal sensors: temperature sensor, humidity sensor, light sensor, motion sensor (PIR) and sound sensor. ERS is powered by two 3.6V AA lithium batteries (one for ERS-lite). Battery life is estimated to be up to 10 years, but depends on sampling interval, transmission interval, data rate and environmental factors. This is not included in the scope of delivery. All Elsys sensors are equipped with NFC (Near Field Communication) for easy configuration with an Android phone. With our Sensor Settings application you can change sample rate, data rate, encryption key, trigger, activation and much more. All of our sensors are built on Semtech's LoRaWAN™ stack. Channel levels for US902-928, EU863-870, AS923, AU915-928, KR920-923", "LoRaWAN certified CM", "Noise sensor / peak + average", "Always on - no missed sound events", "dBa filtering", "Temperature sensor", "Humidity sensor", "Light sensor", "Motion detection sensor (PIR)", "NFC for configuration", "Configuration over the air", "Discreet and minimalist design", "Measuring the indoor environment", "Smart buildings", "Management of workplaces", "Room occupancy", "Sound level control in public spaces, schools, libraries, etc", "LoRa Alliance certified", "temperature", "humidity", "Light", "Movement (PIR)", "Sound, peak and average (ERS sound)", "NFC for easy configuration", "Size: 86x86x26mm", "Accuracy: ±0.5°C, ±2%rh", "Resolution: 0.1°C, 0.1%rh", "Approximate range: 8km*", "Battery life: 10 years**/approx. 3 years for ERS-Sound - not included!", "2 x 3.6V AA lithium battery"]