Indoor air quality monitor SIGN

for smart buildingsfor officeCO2

Overview
The SIGN is a 7‑in‑1 connected room sensor designed for professional monitoring of indoor air quality and environmental parameters. It integrates on‑board data analysis, local storage and secure cloud access, and supports multi‑protocol connectivity for large‑scale deployments.

Key features

• Measures CO2 (NDIR), TVOC (MOx), Temperature, Humidity, Brightness, Presence (PIR) and Noise.
• On‑board iZiAiR algorithm to assess air quality and prioritise pollutants for ventilation decisions.
• Multi‑band LoRaWAN transceiver and optional Sigfox for hybrid connectivity.
• Secure end‑to‑end transmission with AES128 double encryption.
• Easy configuration via NFC and the Nexelec TOUCH app (over 25 configurable parameters).
• Built‑in microSD for local historical storage (up to 10 years of measurements).
• Visible LED indicator (green/orange/red) and configurable audible alarm; LED visible from >10 m.
• Multiple mounting options: wall, free‑standing or single‑gang flush box (SIGN); 3M adhesive included.
• Anti‑theft lockable base and anti‑tear detection with alerts.
• Low power design: 2 battery slots and USB‑C input for continuous supply; batteries included.

Sensors & measurement benefits

• TVOC sensor (MOx) for reliable detection in humid and dusty environments, aiding VOC management and ventilation control.
• NDIR CO2 sensor with automatic weekly recalibration and COFRAC calibration certificate; periodic CO2 analysis with visual alerts.
• 270° air inlet and multiple side openings for representative ambient sampling.
• Noise measurement to detect acoustic disturbances and support a calm environment.
• PIR presence detection for occupancy, lighting and HVAC automation.

Installation & configuration

• NFC setup from a smartphone without opening packaging; configure measurement/transmission frequencies, LED/sound thresholds, LoRaWAN bands and more.
• Quick installation options: 3M adhesive, screws/plugs, lockable mounting base; anti‑tear detection included.
• Front button for immediate measurement and instant data sharing.

Connectivity & data management

• Multi‑band LoRaWAN (configurable for EU868, US915, AU923, etc.) and Sigfox compatibility for hybrid deployments.
• Historical Data mode and redundancy: grouped measurements in one LoRaWAN frame and repeated sends to maximise gateway reception.
• API, webhooks and data export (.csv, .pdf) via the NAVIXIS IoT platform; dashboards, alerts and user rights management for remote monitoring.

Power & autonomy

• Two battery slots and one USB‑C socket; set includes 2 batteries.
• Very low power consumption with autonomy depending on configuration and usage profiles.
• Replaceable high‑performance lithium batteries; autonomy examples provided by manufacturer.

Compliance & calibration

• CO2 sensor compliant with applicable regional standards and delivered with calibration certificate from a COFRAC‑accredited laboratory.
• Automatic weekly recalibration and option for manual calibration.
• Relevant certifications indicated where applicable (CE, UKCA, FCC).

Technical specifications

• TVOC (MOx): Resolution 1 μg/m3; Accuracy ~25%; Range 0–15,000 μg/m3.
• Presence (PIR): Angle 92°; Detection distance 6 m.
• Brightness: Resolution 5 lux; Accuracy ±5 lux; Range 0–5,000 lux.
• Noise: Resolution 1 dB; Accuracy ±5 dB; Range 35–120 dB.
• CO2: Resolution 1 ppm; Accuracy ±(50 ppm + 3% of value); Range 0–5,000 ppm.
• Temperature: Resolution 0.1 °C; Accuracy ±0.2 °C; Range -30 °C to +70 °C.
• Humidity: Resolution 0.5% RH; Accuracy ±2% RH; Range 0–100% RH.
• Connectivity: LoRaWAN (multi‑band), Sigfox (optional); AES128 end‑to‑end encryption.
• Power: 2 battery slots; 1 USB‑C socket; batteries included.
• Memory: microSD card, up to 10 years of measurements stored.
• Dimensions: 87 × 87 × 23 mm.
• Operating conditions: Indoor; -20 °C to +50 °C; 0–99% RH (non‑condensing).
• Transmission modes: Periodic, on change, bundled (datalog) with redundancy.
• Mounting: Wall or free‑standing; compatible with single‑gang flush boxes (SIGN only); 3M adhesive included.
• Warranty: 2 years.
• Set contents: 1 sensor, 2 batteries, 1 microSD, 1 mounting base, 2 nylon screws & plugs, 1 3M adhesive.
• References: X565LS — LoRaWAN / Sigfox; X565LR — LoRaWAN.