GS301-915M - Milesight GS301 AU915/AS923 LoRaWAN IoT Bathroom Gas/Odour Detector
GS301-915M - Milesight GS301 AU915/AS923 LoRaWAN IoT Bathroom Gas/Odour Detector
Features
Milesight GS301-915M GS301 LoRaWAN IoT Bathroom Odour Detector
The Milesight GS301 is a 4-in-1 LoRaWAN US915/AU915/AS923 IoT bathroom odour detector, used to detect ammonia (NH3) and hydrogen sulfide (H2S) gas according to their electrochemical principles. The Milesight GS301 is also able to detect temperature and humidity to allow users to be fully aware of the environment of bathrooms. When the NH3 or H2S gas concentration reaches the preset threshold, the detector will trigger both LED light alarm and buzzer to notify people to ventilate the area, which is an important part of smart bathroom solutions. Apart from local alarms, GS301 can also report the sensor data and alarm messages remotely by the use of LoRaWAN® technology. Integrating with Milesight LoRaWAN® gateways and Milesight IoT's Cloud solution, users can monitor all sensor data and control the device remotely and easily. Moreover, the GS301 supports Milesight D2D (Device 2 Device) to enable ultra-low latency control without gateways. This sensor is also compatible with Scopious IoT.
- Built-in high accuracy electrochemical gas detection sensor with more than a 3-year life expectancy
- Supports LoRaWAN IoT US915/AU915/AS923-1&2&3&4
- Built-in multiple sensors including NH3, H2S, temperature and humidity
- Built-in batteries to achieve wireless power supply and decrease the installation cost
- Equipped with buzzer and LED indicator to indicate threshold alarms
- Damp proof coating inside the device to ensure device will work well in various conditions
- Supports Milesight's D2D protocol to enable ultra-low latency and direct ventilation control without gateways
- Built-in NFC for easy configuration
- Compatible with standard LoRaWAN® gateways and network servers
Specifications
Technical Specifications
| Model | GS301-915M |
|---|---|
| Protocol | LoRaWAN, Milesight D2D |
| Frequency | US915/AU915/AS923-1&2&3&4 |
| Tx Power | 22 dBm |
| Sensitivity | -137dBm |
| Mode | OTAA/ABP Class A |
| Ammonia (NH3) 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 (H2S) 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 |
| LED & Buzzer | 1 × Status/Alarm Indicator + 1 × Buzzer |
| Button | 1 × Reset/Reboot Button |
| Configuration | Mobile App via NFC |
| Advanced Feature | Milesight D2D Controller |
| Power Supply | 4 x 4000 mAh ER18505 Li-SOCl2 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 |
| Material & Color | PC+ABS (Flame Retardant), White |
| Installation | Wall Mounting |
| Package Contents | GS301 sensor, QSG and mounting screws |
Not happy? Return within 7 days of delivery for a full refund or exchange. Items must be unused and in original packaging. Contact contact@kwtech.co.nz to arrange.
| Brand | Milesight |
|---|---|
| Product Type | B2B - IoT & Industrial |
| Weight | 0.5 kg |
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return



