Relative humidity and temperature sensor ARF8373 series

wall-mountUSBNB-IoT

Product overview
The COMFORT SERENITY is a connected indoor air quality sensor designed to monitor temperature, ambient humidity, CO2 concentration and VOC variations in buildings. This compact, ready-to-install device provides thermal comfort and IAQ data, and includes an alert button plus a dry contact input to detect events and transmit corresponding frames.

Highlights

• 6-in-1 device: temperature, humidity, CO2, VOC, alert button, dry contact input
• Over 15 years battery autonomy in some configurations (depending on version and settings)
• Flexible data transmission: periodic and/or event-triggered modes
• Autonomy-preserving functions: selective shutdown, data logging
• Local (USB-C) and remote configuration
• Compatible with KARE
• Available connectivity versions:
  • LoRaWAN: EU863-870 / US902-928 / AU915-928 / AS923-1
  • Sigfox: RC1 / RC2 / RC4
  • NB-IoT / LTE-M1 (available)

What the sensor measures and actions

• Measures: temperature, relative humidity, CO2 concentration, relative VOC level changes, and occupancy indicators
• Counts events from the alert button and the dry contact input
• Generates alerts/alarms when configured thresholds (high and/or low) are exceeded, when the alert button is pressed, or when event counts on the dry contact input reach configured values

Features

• Periodic transmission of temperature, humidity, CO2 and VOC data and/or immediate transmission when thresholds are exceeded
• 1 digital input to detect one or more status changes and send an associated frame
• 1 alert button to detect presses and send an associated frame
• Configurable alarm repetition for persistent events
• Daily summary frame: ICONE index, time spent in poor Indoor Air Quality (IAQ), min/max/average for temperature, humidity, CO2 and VOCs
• Configuration: local via USB-C; remote via network (settings for periodicity, transmission modes and alarm thresholds)
• Alerts for product error, configuration error and low battery

Part numbers / Versions

• ARF8373ARA — COMFORT SERENITY LoRaWAN EU863-870
• ARF8373CRA — COMFORT SERENITY Sigfox RC1
• ARF8373BRA — COMFORT SERENITY LoRaWAN US902-928
• ARF8373DRA — COMFORT SERENITY Sigfox RC2
• ARF8373JRA — COMFORT SERENITY LoRaWAN AS923
• ARF8373IRA — COMFORT SERENITY LoRaWAN AU915-928
• ARF8373KRA — COMFORT SERENITY Sigfox RC4

Datasheet / Documentation

• Datasheet available (English)

Technical specifications

• Dimensions: 111 x 61 x 40 mm
• Weight: 141 g
• Enclosure: IP20, Bayblend FR3010 (PC/ABS) white plastic (indoor use)
• Integrated fixing system: wall mount
• Recommended operating conditions: +5°C to +50°C; 0 to 85% RH (non-condensing)
• Power: dual interchangeable battery pack (8000 mAh)
• Expected battery life (example conditions: 1 scan every 10 min and 1 transmission per hour; VOC sensor on, LEDs on):
  • LoRaWAN EU863-870: SF7 — 10.8 years; SF12 — 8 years
  • Sigfox RC1: 4.1 years
  • LoRaWAN US902-928: SF7 — 10.7 years; SF12 — 9.8 years
  • Sigfox RC2: 7.8 years
  • LoRaWAN AS923: SF7 — 10.8 years; SF12 — 8 years
  • LoRaWAN AU915-928: SF7 — 10.7 years; SF12 — 7.3 years
  • Sigfox RC4: 7.8 years
• Transmission modes: periodic and event-triggered; configurable periodicity and thresholds
• Local configuration via USB-C; remote configuration via network
• Daily summary frame with IAQ index and min/max/avg values for temperature, humidity, CO2 and VOCs
• Alarms: threshold-based, button and dry contact input events; configurable repetition