GS301 Bathroom Odor Detector

GS301 LoRaWAN Bathroom Odor Gas Detector

Cleaner Air. Enhanced Care.

• Detect NH? & H?S with Higher Accuracy
• Wireless Deployment with up to 3 Years Battery Life
• Support LoRaWAN® & Milesight D2D Simultaneously
• Built-in Buzzer & Traffic Light Indicator for Alarming

Minimalist & Practical Design

The GS301 LoRaWAN® Bathroom Odor Detector features a compact design that's easy to install and maintain. With moisture-resistant coating, the detector operates reliably across various bathroom conditions.

4-in-1 High-Sensitivity Sensors

Integrated with ammonia (NH?), hydrogen sulfide (H?S), temperature and humidity sensors. Detects ammonia (NH?) and hydrogen sulfide (H?S) gases using electrochemical principles.

• NH?: ±5% Accuracy
• H?S: ±5% Accuracy

Stay Informed of Air Quality

When ammonia or hydrogen sulfide concentrations reach configured thresholds, multiple alarm systems activate, including traffic light indicators, built-in buzzer alerts, and uplink data packets. Thresholds are fully customizable.

Intelligent Ventilation Assistant

HVAC systems can automatically adjust operations based on detected concentrations of ammonia and hydrogen sulfide from urinals and sewer systems, ensuring optimal air quality management.

Milesight D2D LoRa® Technology

Supports Milesight D2D protocol enabling ultra-low latency and direct ventilation control without requiring gateways.

• Lower Latency
• Less than 1 Second Response Time
• Secure Transmission
• Reduced Investment Cost

LoRaWAN® Technology

• Compatible with Standard LoRaWAN® Gateways
• Penetrates Thick Walls
• 2 km Communication Range in Urban Areas

Technical Specifications

Wireless Transmission	Protocol	LoRaWAN®, Milesight D2D
	Frequency	US915/AU915/KR920/AS923-1&2&3&4
	Tx Power	16 dBm (868 MHz)/19 dBm (470 MHz)/22 dBm (915 MHz)
	Sensitivity	-137dBm
	Mode	OTAA/ABP Class A
Sensors
Ammonia (NH?)	Detection Principle	Solid Polymer Electrochemical
	Range	0 ~ 10 ppm
	Accuracy	± 5% (-40 – 35°C)
	Long-term Stability	< 1% accuracy drift per month
	Resolution	0.01 ppm
Hydrogen Sulfide (H?S)	Detection Principle	Solid Polymer Electrochemical
	Range	0 ~ 5 ppm
	Accuracy	± 5% (-40 – 35°C)
	Long-term Stability	< 1% accuracy drift per month
	Resolution	0.01 ppm
Temperature	Range	-40 – 85°C
	Accuracy	± 0.2°C
	Resolution	0.01°C
Humidity	Range	0 – 100%RH
	Accuracy	± 2%
	Resolution	0.5%RH
Others	LED & Buzzer	1 × Status/Alarm Indicator + 1 × Buzzer
	Button	1 × Reset/Reboot Button
	Configuration	Mobile App via NFC
	Advanced Feature	Milesight D2D Controller
Physical Characteristics	Power Supply	4 x 4000 mAh ER18505 Li-SOCl? Replaceable Batteries
	Sensor Life	> 3 Years
	Battery Life	Around 3 Years (10 min interval)
	Operating Temperature	-40°C – 55°C
	Relative Humidity	0% – 95% (non-condensing)
	Ingress Protection	IP30
	Dimension	120 × 85 × 32.5 mm (4.72 × 3.35 × 1.28 in)
	Material & Color	PC+ABS (Flame Retardant), White
	Installation	Wall Mounting

Documentation

Datasheet

User Guide