| PST-WSD400H Specifications | |
| Name | Tuya Smart WiFi Temperature Humidity Sensor |
| Model | PST-WSD400H |
| APP Name | Tuya Smart or Smart Life |
| Color | White |
| Material | ABS |
| Power Battery | DC3V LR03*2 (Included), Type C port input: DC5V |
| WiFi Standards | IEEE 802.11 b/n/g 2.4G Hz |
| Static Current | ≤ 75uA |
| Alarm Current | ≤ 135mA |
| Low-battery Detection | ≤ 2.4V |
| Low-battery Detection | Support |
| Tuya Smart product Linkage control | Support |
| Temperature Humidity alarm | Support |
| Alarm sound level | ≤ 55db/1m |
| Detection temperature | –10°C to +60°C |
| Detection humidity | 0%--100% non-condensing |
| Operation Temp. | –10°C to +60°C |
| Humidity | 5%--90% non-condensing |
| Installation | Wall-mounted |
| Box Dimension | 8*8*5.3cm |
| Unit Weight | 0.135kg |
| PST-WSD400H Package List | |
| WiFi Temperature Humidity Sensor | x1 |
| Battery | x2 |
| Installation Screws | x2 |
| Double-sided tape | x1 |
| User Manual | x1 |
| PST-WSD400H Product FAQ | |
| Q1: What is the name of this product? This is a WiFi Temperature Humidity Sensor, which is used to measure indoor temperature and humidity. |
|
| Q2: Which WiFi frequencies does it support? A: It supports 2.4G Hz b/g/n WiFi frequencies. |
|
| 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: 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. |
|
| Q6: What are the main features of this sensor? It offers smart control, can measure temperature within the range of -10~+60°C and humidity from 0~99%RH, and has an alarm function with a volume of 55db. |
|
| 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 approximately 6 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: How accurate are the temperature and humidity measurements? The temperature accuracy is often around ±0.5°C (±0.9°F), and humidity accuracy is around ±3% RH, but check the product manual for exact figures. |
|
| Q12: Does the sensor work with voice assistants? A: It supports Amazon Alexa and Google Assistant. |
|
| Q13. How do I install the sensor? It's usually easy to install. You can mount it on a wall using the provided adhesive or mounting accessories. |
|
| Q14. Which app should I use to control this device? A: You can use the Tuya - supported app. You can download it from the App Store (for iOS) or Google Play (for Android). |
|
| 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. |
|
| 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. |
|
| 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. |
|
| 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. |
|
| 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. |
|
| 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. |
|
| Q21. How often does the sensor update the temperature and humidity data? It typically updates every few minutes, but the exact interval can sometimes be adjusted in the app settings. |
|
| Q22: Can I set custom temperature and humidity alerts? Yes, in the Tuya Smart app, you can set custom thresholds for temperature and humidity. When the measured values exceed these thresholds, you'll receive alerts. |
|
| 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. |
|
| Q24: The temperature/humidity readings seem inaccurate. What can I do? Ensure the sensor is not placed near heat sources, vents, or other factors that could affect the readings. You can also try calibrating it if the app provides a calibration option. If the problem persists, contact customer support. |
|
| 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. |
|
| Q26: The battery indicator in the app shows low. How do I change the batteries? Open the battery compartment according to the instructions on the sensor (usually by sliding or unscrewing a cover). Replace the old batteries with new ones of the correct type. |
|
| Q27: Can I use it in an industrial environment? It's mainly designed for home use. While it may work in some light - industrial settings, it's not recommended for harsh industrial environments without proper protection. |
|
| Q28: 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. |
|
| Q29. 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 |
|
