| PST-CO400A Specifications | |
| Name | Tuya Smart WiFi Carbon Monoxide (CO) Detector |
| Model | PST-CO400A |
| APP Name | Tuya Smart or Smart Life |
| Color | White |
| Material | ABS |
| Power Battery | DC3V AAA1.5V*2 (Included) |
| WiFi Standards | IEEE 802.11 b/n/g 2.4G Hz |
| Standard Current | ≤ 55uA |
| Average Current | ≤ 160mA |
| Low-battery Detection | ≤ 2.4V |
| Tuya Smart product Linkage control | Support |
| Alarm sound level | ≤ 90db/1m |
| Alarm Mode | Sound and Flash Alarm |
| Detecing Range | 20 Square meter |
| Detectable Gas | Carbon Monoxide (CO) |
| Alarm Set Value | 128 ppm (±50 ppm) |
| Operation Temp. | –10°C to +50°C |
| Humidity | 5%--95% non-condensing |
| Installation | wall mounted |
| Box Dimension | 10.5*9*4cm |
| Unit Weight | 150g |
| PST-CO400A Package List | |
| WiFi CO Sensor | x1 |
| DC3V AAA1.5V | x2 |
| Double-sided tape | x1 |
| Installation Screws | x2 |
| User Manual | x1 |
| PST-CO400A Product FAQ | |
| Q1: What is this product? A: This is a Carbon Monoxide (CO) Detector. It is designed to detect carbon monoxide leaks, alert you with audible and visual alarms, and has an LCD display. It can also be connected via WiFi and controlled through the Tuya Smart app. |
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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: Can I control the WiFi CO sensor using voice commands? Absolutely. It works with Amazon Alexa and Google Assistant, allowing you to control it via voice. |
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| Q4: Who can use this product? A: It is suitable for homeowners, renters, and anyone who wants to ensure the safety of their living or working space from carbon monoxide poisoning. |
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| Q5: Where can I use this CO detector? A: It is recommended for installation in kitchens, bathrooms, baking rooms, and areas near gas fireplaces, as well as any other places where carbon monoxide may accumulate. |
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| Q6: How does the CO detector work? A: It uses a high - precise sensor to monitor carbon monoxide concentration in the air. When the CO level reaches the alarm set value (128ppm ±50ppm), it triggers an intelligent sound and light alarm (≥90dB) and pushes notifications to the app. |
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| Q7: Can it detect other gases besides carbon monoxide? A: It is mainly designed to detect carbon monoxide and toxic gases containing carbon monoxide, such as those from soot, carbon burning, automobile exhaust, anthracite, artificial gas, and bathroom gas. |
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| Q8: What is the sensitivity of the detector? A: It has a sensitive response and can accurately detect low levels of carbon monoxide to ensure early warning. |
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| Q9: How does the LCD display work? A: The LCD display shows the current carbon monoxide concentration in parts per million (ppm). It provides real - time data for you to monitor the air quality. |
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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: Can I control multiple WiFi CO sensors with one APP? Yes, you can add and control multiple devices at once with the TuyaSmart App. |
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| Q12: How do I connect the CO detector to WiFi? A: Follow the instructions in the Tuya Smart app. Usually, you need to power on the detector, then in the app, select the option to add a new device and follow the prompts to connect it to your local WiFi network. |
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| Q13. What apps can I use to control this detector? A: You can use the Tuya Smart app. It also supports integration with Smart Life app, and can work with Amazon Echo and Google Home for voice control. |
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| Q14. How do I install the CO detector? A: It can be easily installed on the wall using double - sided tape or screws. Refer to the product installation indication for the recommended height and distance from air sources. |
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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. Can the WiFi CO Sensor work with other smart devices? Yes, it supports all Tuya Smart product linkage control, enabling it to work with other Tuya - compatible smart devices. |
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| Q17. Where should I install the detector? A: It is recommended to install it on the ceiling, 0.3 - 0.6m away from the ceiling and within 1.5m from the air source. Avoid installing it in areas with strong air currents or direct sunlight. |
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| Q18. How long do the batteries last? A: Under normal standby conditions, two AA batteries can last for about one year, reducing the need for frequent battery replacement. |
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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. What should I do when the battery is low? A: The detector may have an indicator to show low battery status. When this happens, replace the batteries in time to ensure continuous operation. |
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| Q21: How do I maintain the CO detector? A: Keep the detector clean from dust and debris. Periodically perform the self - test function to ensure it is working properly. Replace the batteries as needed. |
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| Q22: How often should I replace the battery (if battery - powered)? Battery replacement frequency depends on usage and battery type. As a general rule, for battery - powered smoke alarms, batteries should be replaced at least once a year. |
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| Q23: What if the detector gives a false alarm? A: First, check if there are any sources of interference nearby, such as exhaust from a nearby vehicle or a gas leak that has been resolved. If the problem persists, try resetting the detector. |
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| Q24: What if the detector doesn't alarm when there is a CO leak? A: Check if the detector is powered on, if the batteries are working, and if it is installed correctly. If the issue remains, it may be a malfunction, and you can contact customer support. |
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| Q25: How do I reset the detector? A: There is a reset button on the detector. Press and hold it for a few seconds as per the user manual instructions to reset it. |
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| Q26. Can make OEM? A: Yes, we can. PID OEM:500PCS Box & manual OEM: 1000PCS, if only 500PCS extra charge 0.20USD/PCS; Laser Logo: 100PCS |
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