| PST-TYWB-4CH Specifications | |
| Product Name | Tuya Smart WIFI Smart Switch Relay 4CH Relay with RF433 |
| APP Name | Tuya Smart or Smart Life |
| Work Voltage | DC7-32V Terminal or Micro USB Port |
| Relay Opening time | 0.7 seconds |
| Relay Load | AC250V/10A or DC30V/10A |
| Switch mode | Switch/Mobile phone |
| WiFi Standards | IEEE 802.11 b/n/g 2.4G Hz |
| Connection | WiFi + BLE |
| Support Voice Control | Work with Amazon Alexa/Google Assistance |
| Wireless Frequency (RF) for Controller | RF 433Mhz |
| Control Modes | Remote Control, Voice Control, APP Control, Timer Control, Manual Control |
| Operation Modes | Self - locking Mode, Inching Mode, Interlocked Mode |
| Remote Control Function | Remotely control home appliances from anywhere via mobile APP |
| Applicable Home Appliances | Blinds, corridor lights, garage doors, wall/ceiling fans, TV, etc. |
| Can extra add | RF Remote controller and Plastic shell case |
| Operation Temp. | –10°C to +60°C |
| Humidity | 5%--95% non-condensing |
| Dimension | Box:8*7.8*2.7cm |
| Weight | 0.1kg |
| Carton Packing | 200PCS per ctn: 16kg, 53*23*29cm |
| PST-TYWB-4CH Package List | |
| WIFI Smart Switch | x1 |
| User Manual | x1 |
| PST-TYWB-4CH Product FAQ | |
| Q1: What is the full product name of this device? A: The full product name is 4CH 2.4GHz WiFi Relay with RF433 (Remote controller extra), also known as Tuya Smart WiFi 4CH Relay. |
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| Q2: How many devices can be controlled by this relay at once? A: It is a 4-channel (4CH) relay, meaning it can control four device or 4 group of devices (connected to the same circuit) at a time. |
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| Q3: What is the working voltage range of this relay? A: It has two power supply options: a main working voltage range of DC 7-32V and an alternative USB 5V power input for flexible use. |
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| Q4: What is the maximum load capacity of the relay? A: The relay can handle different load specifications, including 250V AC/10A/2200W, 125V AC/10A, 50V AC/10A, and 0-30V DC/10A, suitable for most home appliances. | |
| Q5: Does it support 5GHz WiFi? A: No, only 2.4GHz WiFi (common for Tuya smart devices). |
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| Q6: What control modes does this relay support? A: It supports multiple control modes, including remote control (via app), voice control, manual control (via manual reset switch), and timer control. |
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| Q7: What operation modes are available for this relay? A: It offers three main operation modes: Self-locking Mode, Inching Mode, and Smart Mode, which can be switched in the compatible mobile app according to different usage needs. | |
| Q8: Which voice assistants is the smart lock compatible with? A: It works with Amazon Alexa and Google Assistant. |
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| Q9: How can I remotely control home appliances with this relay? A: After connecting the relay to your home WiFi and the compatible app, you can remotely control the connected home appliances from anywhere as long as your mobile phone has a stable network connection. |
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| Q10: Does this relay support interworking with other smart devices? A: Yes. It can interwork with multiple other Tuya-compatible smart devices. For example, it can be set to work with smart thermostats or motion sensors to trigger automatic device on/off. |
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| Q11: What trigger conditions can be used to set automatic device operation? A: You can set automatic start/stop of connected devices based on three main conditions: temperature (when linked with a smart temperature sensor), location (via mobile phone location), and time (timer). |
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| Q12: How do I share control of this relay with family members? A: You can easily share the device with family members through the TuyaSmart App or SmartLife App—find the "Share" function in the device settings, enter the family member’s app account, and send the share invitation. |
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| Q13: Will I receive real-time alerts from the relay? A: Yes. The relay can send real-time alerts to your mobile app (e.g., alerts for abnormal device status or power issues) to help ensure the safety of home appliances and electricity use. |
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| Q14: How do I connect the relay to the TuyaSmart or SmartLife App? A: The connection process is simple and quick: first, power on the relay, then open the app, select "Add Device" (follow the app’s prompt to choose the relay type), and follow the on-screen steps to complete the WiFi connection. |
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| Q15: How do I set a timer for the relay to turn devices on/off automatically? A: Open the compatible app, enter the relay’s control page, find the "Timer" or "Add Schedule" function, set the desired on/off time (e.g., 6:00 a.m., 18:00, 23:59), and save the settings. |
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| Q16: Does the timer function support repeat scheduling? A: Yes. The timer function offers both "Only Once" and repeat scheduling options. You can set the relay to turn devices on/off at fixed times daily, weekly, or on specific days according to your living habits. |
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| Q17: How do I edit the switch name of the relay? A: You can long press the corresponding switch (labeled "switch 1" by default) on the relay or in the app’s control interface to enter the switch name editing mode, then input a custom name (e.g., "Living Room Light Switch"). |
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| Q18: Is there a manual control option if the WiFi or app fails? A: Yes. The relay is equipped with a manual reset switch, which allows you to directly turn the connected device on or off manually without relying on WiFi or the app. |
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| Q19: What types of home appliances can this relay be used with? A: It can be used with most home appliances and lights, such as blinds, corridor lights, garage doors, wall/ceiling fans, TVs, and other devices that match its load capacity. |
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| Q20: Can I share the smart switch with family members? Yes, you can easily share the device among family members via the app. |
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| Q21: Will I receive real-time alerts? Yes, it sends real-time alerts to ensure safety. |
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| Q22: What do the NC, COM, and NO terminals on the relay mean? A: These are wiring terminals: NC (Normally Closed) means the terminal is closed when the relay is not energized; COM (Common) is the common terminal; NO (Normally Open) means the terminal is open when the relay is not energized. |
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| PST-TYWB-4CH OEM & ODM Service | |
| Q23. Can make OEM? A: Yes, we can. PID OEM:1000PCS Box & manual OEM: 1000PCS: 0.05USD/Each; 5000PCS free; Laser logo: 50PCS. |
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