| PST-MC400S Specifications | |
| Name | Tuya Smart WiFi Door & Window Sensor with Alarm Sound |
| Model | PST-MC400S |
| APP Name | Tuya Smart or Smart Life |
| Color | White |
| Material | ABS |
| Backup Battery | LR03 AAA1.5V*2 |
| WiFi Standards | IEEE 802.11 b/n/g 2.4G Hz |
| Support Voice Control | Work with Amazon Alexa/Google Assistance |
| Support open/close status Push | Detece open/close status of the door/window |
| Low-battery Detection | ≤ 2.4V |
| Tuya Smart product Linkage control | Support |
| Magnetic control distance | ≤ 15MM |
| Alarm decibel | ≤ 90dB 1 meter |
| Operation Temp. | –10°C to +50°C |
| Humidity | 5%--95% non-condensing |
| Installation | Wall-mounted |
| Box Dimension | 3 *5.9*10cm |
| Unit Weight | 85g |
| Carton Info: | 200PCS/CTN |
| PST-MC400S Package List | |
| WiFi Door Sensor | x1 |
| AAA1.5V battery | x2 |
| Double-sided tape | x1 |
| User Manual | x1 |
| PST-MC400S Product FAQ | |
| Q1:How do I install the Tuya Smart WiFi Door Sensor? A: First, clean the surface of the door or window frame where you plan to install the sensor. Then, use the provided adhesive tape or screws to firmly attach the two parts of the sensor. Make sure they are properly aligned for accurate detection. |
|
| Q2: What should I do if I can't connect the sensor to my WiFi router? A: Check if your WiFi router is working properly and the signal is strong. Ensure that you enter the correct WiFi password during the setup process in the mobile app. You can also try resetting the sensor by following the instructions in the user manual and then reconnecting it. |
|
| 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. |
|
| 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. |
|
| Q5: How sensitive is the door sensor? Can it detect a very gentle opening of the door or window? A: The sensor is designed to detect even slight movements of the door or window. However, if you find it too sensitive or not sensitive enough, you can adjust the sensitivity settings in the mobile app according to your needs. |
|
| Q6: Can I share the sensor's monitoring with other family members through the app? A: Yes, in the Tuya Smart app, you can usually add family members' accounts and grant them appropriate permissions to view the sensor's status and receive notifications. |
|
| Q7: How is the sensor powered? A: The sensor is powered by 2PCS DC1.5V LR03 ultra alkaline AAA batteries. |
|
| Q9: How long does the battery last? A: Battery life depends on usage frequency and sensitivity settings. Under normal usage and default settings, the battery can last approximately6 months if trigger 10 times a day. |
|
| 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 |
|
| Q11: Can I use the sensor outdoors? A: Can not. this product is not waterproof. |
|
| Q12: Does the sensor work with voice assistants? A: It supports Amazon Alexa and Google Assistant. |
|
| Q13. Can make OEM? A: Yes, we can. PID OEM:500PCS Box & manual OEM: 1000PCS, if only 500PCS extra charge 0.15USD/PCS; Laser Logo: 100PCS |
|
| Q14: Can I receive notifications on multiple mobile devices? A: Yes, you can usually share the device within the Tuya Smart app with other accounts. Each account associated with the sensor can receive notifications on their respective mobile devices. However, make sure that all devices have the app installed and proper notification settings enabled. |
|
| Q15: What if I accidentally delete the Tuya Smart app? Can I still access the sensor's data? A: If you reinstall the Tuya Smart app and log in with the same account that was previously associated with the sensor, you should be able to access the sensor's data and settings. The sensor's historical data is usually stored in the cloud associated with your account. But if the data has been purged due to privacy settings or storage limitations, some older records may not be available. |
|
| Q16: The sensor is triggering false alarms. What can I do? A: First, check the installation to ensure that the sensor and magnet are properly aligned and securely attached. Loose connections or misalignment can cause false detections. Also, review the sensitivity settings in the app. If it's set too high, it may be detecting minor vibrations as openings. Try lowering the sensitivity and see if the false alarms reduce. |
|
| Q17: The LED indicator on the sensor is behaving strangely. What does it mean? A: Different LED patterns usually indicate different states of the sensor. For example, rapid blinking may mean it's in pairing mode, while a slow blink could indicate a connection issue. Refer to the user manual or the app's help section for a detailed explanation of what each LED pattern means so that you can troubleshoot accordingly. |
|
| Q18: Can I use multiple door sensors with the same app? A: Yes, you can use multiple Tuya Smart WiFi Door Sensors with the same app. |
|
| Q19: Do multiple door sensors work independently or in combination? A: Multiple Tuya Smart WiFi Door Sensors can operate both independently and in combination. |
|
| Q20: Do I need to buy additional hubs for it to work? A: No, it connects directly to your home WiFi network without the need for an additional hub. |
|
| Q21: How does the 90dB alarm work? A: When the door or window is opened unexpectedly (if the alarm function is enabled), the sensor will trigger a 90dB alarm sound to alert you. |
|
| Q22: How does intelligent linkage work? A: You can set up rules in the smart home app. For example, when the door is opened, it can trigger other connected devices like turning on lights or sending a notification. |
|
| Q23: How do I set up the sensor in the app? A: Open the app, click the "Add Device" button, follow the prompts to connect the sensor to your WiFi network, and complete the setup steps. |
|
| Q24: What if I forget my app password? A: You can use the "Forgot Password" function in the app, usually by verifying your account via email or phone number to reset the password. |
|
| Q25: The sensor is making a strange noise. Is it normal? A: If it's a continuous or abnormal noise, it may indicate a problem. Try restarting the sensor. If the noise persists, contact customer support for assistance. |
|
| PST Company FAQ: | |
| Q1. How long has the company been established? -- Chinapst has been established since 2007. |
|
| Q2. What is the main business and market? -- Our main business is Smart Home Automation & Home Security Solutions. And our market is for global. Our products already exported to more than 170 countries now. |
|
| Q3. How is the product quality guaranteed? ◆ We provide a 2-year product warranty; ◆ Rigorous Quality Control: Each product undergoes two rounds of 100% full-quantity QC testing before delivery, ensuring superior quality; ◆ Superior Packaging: Our carton boxes are made from high-strength materials to minimize transit damage. Additionally, we use yellow waterproof tape to secure and protect the boxes during shipping; ◆ Pre-Shipment Verification: Our sales team conducts a final check of all goods before shipment and provides clients with detailed photos, ensuring transparency and satisfaction; |
|
| Q4. Is there a product catalog or sample? -- You can contact us to get the catalog and if you are interested, you can place the samples order to test; |
|
| Q5. How is the pricing? Are there any discounts? ◆ Fair Pricing: Our prices are based on meticulous cost accounting, ensuring fairness and quality. We avoid using substandard components to lower costs, believing in long-term, mutually beneficial business relationships; ◆ For bulk orders can futher negotiate the price; ◆ Price trade term is EXW; |
|
| Q6. How is the payment? ◆ If you need to pay a large amount, it is recommended to choose bank wire transfer (TT), which has low fees and high security. ◆ If you want to ensure transaction security through a third-party platform, you can choose Alibaba, but you need to pay attention to the fees and operation procedures. ◆ If you need to pay a small amount quickly, PayPal is the most convenient option, but you have to bear higher fees. |
|
| Q7. Delivery and Logistics? ◆ What shipping methods PST use usually? International air express: for example: DHL, UPS ,FedEx etc; these are door to door service; By Sea Freight: This one usually for the order is more than 1CBM. and clients need to pay the local charge and tax etc. By direct line door to door service: this is the direct line service, not international express service. ◆ How PST will quote the shipping cost? After we received the order list from clients. We will calculate the total gross weight and dimension first, and compared all the shipping methods mentioned above and will find the best shipping solution for the order you are placing with us; |
|
| Q8. How long is the delivery cycle? ◆ Samples Order: around 1-3 business days after receive the full payment; ◆ Bulk Order: around 5-10 business days after received full payment; ◆ OEM order: around 15-30 business days after received full payment; |
|
| Q9. Is there any quality certification? -- Yes, our products have CE, RoHS etc certificates; |
|
| Q10. How to deal with quality issues or returns? In warranty period, any products problem if not caused by personal reasons. We support in these ways: ◆ Client self confirmed which less value component should be replaced. We will free replace with next order; If need ship separately. The client needs to pay the shipping cost; ◆ Client self confirmed which high value component should be replaced. We will free replace with next order, If need ship separately. The client needs to pay the shipping cost; And the faulty component should be returned to us; Clients pay returning cost; ◆ If clients cannot judge which component need to be replaced. Can return back whole device, after we received we will make free repair or replace; And send back to client with new order; If need ship separately. The client needs to pay the shipping cost; |
|
| Q11. Return Policy? ◆ We provide 7 days unconditional return policy. For return please make a request to our company within 7 days after you received the goods, overdue time will not be acceptable; ◆ Damage caused by personal reasons(such as mal-operation, dismantle without our permission etc) will not accept returns; ◆ For returns, please ensure that the package, products, labels etc all remain in good original situation. Does not affect the secondary sales; ◆ For returning shipping cost to China, Client needs to pay; |
|
| Q12. Can you provide customer testimonials or reviews? -- Yes, can get our clients reviews from this link: https://chinapst.en.alibaba.com/company_profile/feedback.html?spm=a2700.shop_index.88.168.13884b55UpFMdS |
|
| Q13. What are the communication channels? How long is the response time? -- You can contact us via We-chat, Whats-app, Alibaba Messager or Email etc; |
|
| Q14. Do you provide customized services? -- Yes, For example OEM logo, OEM box, OEM design etc; |
|
| Q15. Our advantages? ◆ Robust Production Capacity: Equipped with our own production facilities and assembly lines, all PST production staff undergo rigorous in-house training to ensure high efficiency and superior product quality. ◆ Fast Delivery: For sample orders, we maintain ample stock to guarantee delivery within 1-3 days. Bulk orders typically ship within 5-10 days, depending on the order size. ◆ No MOQ Restrictions: PST imposes no minimum order quantity, allowing you to purchase any quantity at competitive prices. ◆ Certifications: Our products are certified with CE, RoHS and other international standards, ensuring compliance and reliability. ◆ ODM & OEM Expertise: With over a decade of experience in ODM and OEM services, we transform your ideas into reality—just envision it, and we handle the rest. ◆ Offer full marketing materials for advertising; ◆ Diverse Product Range: PST specializes in smart home automation and home security solutions, offering a comprehensive range of products at competitive prices. |
|
