Tuya Smart 8-Channel 4G Cellular Relay – Remote Control with Pulse/Interlock/Timer & Smart Speaker for Smart Home Automation

This version has a built-in 4G network module, which requires a SIM card that can access the network, to get rid of the problem that the WIFI version needs a router to transfer to the network. As long as there is a 4G signal and the SIM card is in the network state, the module can be remotely controlled to achieve outdoor and remote Such as user equipment control requirements in places without WIFI.

This product is a wireless switch supports inching /self-locking mode. Users can add the device to the APP Smart life in order to remotely control connected home appliances or devices. 

In self-locking mode, customers can remotely turn on/off connected devices immediately. 

When in inching mode, customers can have two wiring ways to select, and you can set the inching time in APP .

4G control model, no need to program. No matter where you are, you only need to download a APP to connect the 4G and control the cloud.

The 4g flow card is controlled remotely, with no drop, quick response, and can be used wherever the mobile phone has 4G signal.

Input voltage:DC7V~32V/USB5V or 85-250V 
Wireless:4G-LTE
Working temperature:-20~70°C
Working Humidity:≤80%
SIZE:100*87*20MM

Download “Tuya Smart” from the software market, install and register, power off the module and restart it, open the APP, and click the + sign in the upper right corner to add devices.

Note: Power off and on again, wait for the indicator light to finish flashing before operating.this product does not contain SIM card, and buyers need to bring their own SIM card, which supports ordinary mobile phone cards and mobile cards.

Operating instructions :

(1) Learn the remote controller: Press the “Set” key five times quickly, and Channel 1 will flash (click the set key to change the relay number to be learned). At this time, press one key of the remote controller for a long time to learn one key, and then you can continue to press all the keys. After the operation, you need to turn off the power and restart. (2) Re-pairing the mobile phone and restoring the factory settings: press and hold the setting key for 10 seconds until the indicator light flashes quickly, and then release your hand, and then add it to the mobile phone.
LTE Cat.1 features:

Frequency band

LTE-FDD: B1/B3/B5/B8

LTE-TDD: B34/38/39/40/41 (2535 ~ 2655 MHz)

Data rate

LTE-FDD: max. 10 Mbit/s(downlink)/max. 5 Mbit/s (uplink)

LTE-TDD: max.8.2Mbit/s(downlink)/max. 3.4 Mbit/s (uplink)

Transmitting power: 23dBm±2dBm

Receiving sensitivity: less than -98dBm

The antenna impedance is 50Ω, so an external antenna is required.