Bathroom odor detector Milesight GS301-868M LoRaWAN for NH3 H2S gas monitoring

The Milesight GS301-868M LoRaWAN bathroom odor detector is a compact sensor designed to monitor ammonia (NH3) and hydrogen sulfide (H2S) concentrations in indoor sanitary spaces. The device continuously senses targeted gases and transmits measured values wirelessly over a LoRaWAN network, enabling centralized logging and remote monitoring without running additional cabling. It is intended for installation in restrooms, washrooms, offices and care facilities where odor control and air quality visibility are required.

Advantages

This detector combines targeted NH3 and H2S sensing with LoRaWAN connectivity to provide continuous, low-power monitoring and remote data reporting. Its wireless transmission reduces installation complexity and allows integration with building management or asset-monitoring platforms. The device supports ongoing logging of gas levels to trigger ventilation or maintenance actions based on recorded concentrations, helping maintain hygiene and occupant comfort.

Suitable for

• Public restrooms and toilets in commercial buildings
• Office washrooms and shared sanitary facilities
• Care homes and healthcare facility bathrooms
• Facilities management monitoring and preventive maintenance programs

Key specifications

• Target gases: ammonia (NH3) and hydrogen sulfide (H2S)
• Wireless protocol: LoRaWAN for remote transmission
• Continuous monitoring capability for odor-related gases
• Compact form factor suitable for indoor sanitary spaces

How to use

Install the Milesight GS301-868M in a representative location within the room, ideally mounted on a wall at breathing height or where odors concentrate, avoiding direct air vents that could skew readings. Configure the device to join a LoRaWAN network and verify connectivity to your monitoring platform. Calibrate or validate sensor readings according to site procedures if required, then monitor transmitted NH3 and H2S values through your chosen platform to observe trends and set alert thresholds.

Recommendations

Place the sensor away from strong drafts and direct water exposure, perform periodic verification or calibration per facility protocols, and configure alert thresholds to trigger ventilation or maintenance actions when elevated NH3 or H2S levels are recorded.