The Milesight GS301 is an advanced LoRaWAN® bathroom odor detector designed for real-time monitoring of air quality in restrooms, public toilets, and other enclosed spaces. With its high-precision gas sensors, the GS301 accurately detects ammonia (NH₃) and hydrogen sulfide (H₂S), key indicators of poor air quality and odor buildup. By transmitting data wirelessly via LoRaWAN®, facility managers can efficiently monitor and improve ventilation, ensuring a fresher and more hygienic environment.
🔑 Key Features
✔ Real-Time Odor Monitoring – Detects and measures ammonia (NH₃) and hydrogen sulfide (H₂S) levels.
✔ Multi-Parameter Air Quality Sensing – Monitors temperature, humidity, TVOC, and barometric pressure for comprehensive environmental tracking.
✔ LoRaWAN® Connectivity – Enables long-range, low-power wireless transmission to central monitoring systems.
✔ Long Battery Life – Equipped with a non-replaceable 5400mAh battery for up to 5 years of maintenance-free operation.
✔ Smart Threshold-Based Alerts – Sends instant alerts when odor levels exceed predefined limits, allowing proactive maintenance.
✔ Compact & Wall-Mountable Design – Easy installation with 3M tape or screws, making it ideal for restrooms, public buildings, and commercial facilities.
✔ Easy Configuration & Remote Management – Supports NFC-based setup and remote configuration via LoRaWAN®.
📦 Technical Specifications
✅ LoRaWAN® Protocol: 1.0.3, Class A
✅ Gas Detection: NH₃ (0–100 ppm), H₂S (0–10 ppm)
✅ Other Sensors: Temperature, Humidity, Barometric Pressure, TVOC
✅ LoRa® Frequency Band: EU868
✅ LoRa® TX Power: Up to 20 dBm
✅ LoRa® Sensitivity: -137 dBm
✅ Power Supply: 5400mAh built-in battery (up to 5 years)
✅ Operating Temperature: -20°C to 60°C
✅ Ingress Protection: IP30
✅ Dimensions: Compact & lightweight for easy installation
🌍 Applications
🚻 Public Restrooms & Washrooms (See the related article here)
🏢 Office & Commercial Buildings
🏭 Industrial & Warehouse Facilities
🚇 Transportation Hubs (Airports, Train Stations, Malls)
🏥 Hospitals & Healthcare Facilities
📥 Product Downloads:
Product Video
- Measurement Type: Bathroom Odor Detection
- Detected Gases: Ammonia (NH₃), Hydrogen Sulfide (H₂S), Temperature, Humidity
- NH₃ Detection Range: 0 ~ 100 ppm
- H₂S Detection Range: 0 ~ 100 ppm
- Temperature Measurement Range: -20°C to 60°C
- Humidity Measurement Range: 0% to 100% RH
- LoRaWAN® Protocol: 1.0.3, Class A
- LoRa® Frequency Band: EU868
- LoRa® TX Power: Up to 20 dBm
- LoRa® Sensitivity: -137 dBm
- Power Supply: Replaceable 4000mAh Li-SOCL2 battery (up to 10 years lifespan)
- Operating Temperature: -20°C to 60°C
- Ingress Protection: IP30 (Indoor Use)
- Installation: Wall-mounted or ceiling-mounted