| PST-GS21 Specifications | |
| Name | Tuya Smart WiFi Gas Sensor |
| Model | PST-GS21 |
| APP Name | Tuya Smart or Smart Life |
| Color | White |
| Material | ABS |
| Work Voltage | Type C DC5V 1A |
| Consumption | ≤ 200mA |
| Valve/Manipulator Drive Output | 12V/300mA output for 15 seconds |
| Warm-up time | 180 seconds |
| WiFi Standards | IEEE 802.11 b/n/g 2.4G Hz |
| Detected gas | Hatural gas (CH4), LPG |
| Alarm sound level | 70dB |
| Heat alarm value | 57degree C |
| Operation Temp. | –10°C to +50°C |
| Humidity | 5%--95% non-condensing |
| Box Dimension | 9*9.3*5.3cm |
| Unit Weight | 0.15kg |
| PST-GS21 Package List | |
| WiFi Gas Sensor | x1 |
| Type C Cable | x1 |
| Adapter DC5V 1A | x1 |
| Valve/Manipulator Drive Cable | x1 |
| Installation Screws | x2 |
| Double-sided tape | x1 |
| User Manual | x1 |
| PST-GS21 Product FAQ | |
| Q1: What is this product? This is a Wi - Fi Gas Leak Detector by Tuya, designed to protect your home by detecting gas leaks. |
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| Q2: Which WiFi frequencies does it support? A: It supports 2.4G Hz b/g/n WiFi frequencies. |
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| Q3: How do I connect the sensor to my Wi - Fi network? A: Download the Tuya Smart app from the app store. Open the app, create an account if you don't have one. Then, follow the in - app instructions to add a new device. Select the Wi - Fi vibration sensor and enter your Wi - Fi password when prompted. |
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| Q4: What if my Wi - Fi signal is weak near the sensor's location? A: You may consider using a Wi - Fi extender or a mesh Wi - Fi system to boost the signal. Ensure that the sensor is within a reasonable range of your router for optimal connectivity. |
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| Q5: Is it a standalone device? A: Yes, it's a standalone device. However, it requires a WiFi connection and can be managed through the Tuya app for full functionality. |
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| Q6: What gases can this detector sense? It is typically designed to detect common combustible gases such as natural gas (methane), LPG (propane, butane), etc. However, the exact gas types may vary by model. |
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| Q7: What is the detection range for gas concentration? The detection range is usually from 0 - 100% LEL (Lower Explosive Limit). For example, it can detect gas concentrations starting from a very low level up to the point where it becomes potentially explosive. |
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| Q9: What is the accuracy of gas concentration detection? The accuracy is generally within a certain percentage, such as ±5% of the measured value, but it may vary depending on the specific model and environmental conditions. |
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| Q10: What should I do if the sensor doesn't connect to my Wi-Fi network? 1. Check the Basics Power: Ensure the sensor is properly powered. Wi - Fi Signal: Make sure the sensor is within range of your Wi - Fi router. 2. Reset the Sensor 3. Re - add the Device in the App 4. Check Router Settings 5. Update Router and App Firmware |
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| Q11: How do I connect it to the Tuya or Smart Life app? First, download the Tuya Smart or Smart Life app. Then, power on the device. Press and hold the red button (if applicable) until the indicator light starts flashing. Follow the in - app instructions to connect it to your home WiFi network and add it to your device list. |
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| Q12: Does the sensor work with voice assistants? A: It supports Amazon Alexa and Google Assistant. |
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| Q13. What if I can't connect it to the app? Ensure your WiFi network is working and the password is correct. Make sure the device is in pairing mode. If the problem persists, try resetting the device by pressing and holding the red button for a longer time (usually 10 - 15 seconds) and then attempt to connect again. |
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| Q14. Which app should I use to control this device? A: ou can use either the Tuya Smart app or the Smart Life app. Both are available for download on the App Store (for iOS) and Google Play (for Android). |
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| Q15. Can I control the device remotely? A: Yes, as long as the device is connected to WiFi and your phone has an internet connection, you can control it remotely through the app. |
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| Q16. How do I connect it to my WiFi network? First, download the Tuya Smart app. Then, insert the batteries, press the reset button to put it in pairing mode. Follow the in - app instructions to connect it to your 2.4GHz WiFi network. |
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| Q17. What if my WiFi network is a 5GHz network? This sensor typically only supports 2.4GHz WiFi networks. You may need to switch to a 2.4GHz band or use a dual - band router's 2.4GHz option. |
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| Q18. The app can't find the sensor. What's wrong? Ensure the sensor is powered on and in pairing mode. Also, check your phone's Bluetooth and Wi - Fi settings, and make sure they are turned on. |
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| Q19. Can someone else access my sensor's data? As long as you keep your app account credentials secure, and your Wi - Fi network is protected, it's very unlikely that others can access your sensor's data. |
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| Q20. Can I share the sensor data with other family members? Yes, in the Tuya Smart app, there's an option to share the device with other users. You can add their email addresses or phone numbers associated with their Tuya accounts. |
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| Q21. What is the temperature measurement range? The temperature measurement range is often from - 10°C to 50°C (14°F to 122°F), which helps in understanding the ambient temperature along with gas detection. |
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| Q22: Where should I install the gas leak detector? Install it in areas where gas appliances are located, such as the kitchen, near gas water heaters, or boiler rooms. It should be mounted at an appropriate height (usually 0.3 - 1.0 meters from the floor for heavier - than - air gases like LPG, and higher for lighter - than - air gases like natural gas). |
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| Q23: The sensor is not showing up in the app. What should I do? First, make sure the sensor is powered on and in pairing mode. Check your WiFi connection and try resetting the sensor by pressing the reset button for a few seconds. Then, try adding the device again in the app. |
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| Q24: How often does the detector check for gas leaks? It continuously monitors the gas concentration in the environment, typically taking measurements every few seconds to ensure timely detection. |
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| Q25: The sensor is offline in the app. How do I fix it? Check your WiFi router to ensure it's working properly. Try restarting the sensor and the router. If it's still offline, check the sensor's connection settings in the app. |
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| Q26: What happens when the detector senses a gas leak? It will trigger an audible alarm (usually a beeping sound), a visual alarm (indicator lights may flash), and send a notification to your smartphone via the Tuya Smart app. |
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| Q27: How do I clean the sensor? Use a soft, dry cloth to gently wipe the exterior of the sensor. Do not use water or cleaning chemicals as they may damage the device. |
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| Q28: Can I use it in a commercial setting? It is mainly designed for home use, but in some cases, it may be suitable for small - scale commercial environments. However, for large - scale commercial applications, it's best to consult the manufacturer about its suitability and compliance with relevant regulations. |
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| Q29. Can make OEM? A: Yes, we can. PID OEM:500PCS Box OEM: 1000PCS, user manual OEM: 500PCS, if only 500PCS box OEM extra charge 0.30USD/PCS; Laser Logo: 100PCS |
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