Relay Module DC 5V 10A 2 Channel Low/High Trigger

The DC-AC 12A solid state relay has a 3-32VDC input and a 24-380VAC output. It has a maximum load capacity of 12A.
It has a long operating life and high reliability, a compact size. This relay switches very quickly. Solid State Relay SSR-25 DA 12A DC-AC Output 24V-380VAC 

SONOFF POW Elite 20A is a power meter switch with a newly upgraded ESP32 chip that is 200% faster than the previous ESP8622 chip. With an LCD display, you can track the real-time power, current and voltage of your appliances and the accumulated power consumption. 

W1209 DC 12V Thermostat + Transparent Box Temperature Controller features:
- Model: W1209
- Supply voltage: DC 12V
- Temperature control mode: ON / OFF
- Temperature range: -50-110 ° C
- Resolution: 0.1 ° C range -9.9 ~ 99.9 ° C, above is 1 ° C
- Measure accuracy: 0.1 ° C
- Refresh rate: 0.5s
- Temperature protection 0-110 ° C
- Static current: ‰ ¤ 35mA, working current ‰ ¤ 65mA
- Output power: 10A relay
- Probe sensor: NTC (10K 0.5%) Waterproof Sensor
- Environmental requirements: -10 ~ 60 ° c Humidity 20% -85%
- Dimensions: 48 x 40mm

SONOFF DUALR3 is a WiFi based 2-gang switch that can independently connect and control two connected devices or lights - this simply means that 1 SONOFF DUALR3 control switch is equivalent to 2 Sonoff basic switches!

The Sonoff MINIR2is a WiFi-controlled universal switch, built with the ESP8266 chip. It works with the voltage of 230V and makes it possible to control any device anywhere in the world. Thanks to its size it is very mobile and fits in most power supplies.

Sonoff 4CH is a 4 channel WiFi switch allowing control of 4 devices at the same time. It is a very similar device as Sonoff Basic, nonetheless extending Basic's functionality to more than 1 device. The devices can be controlled either by switches as provided on the 4CH box or by eWeLink application as with any other Sonoff product

Tuya WiFi Smart Switch is a Wireless Relay Switch with Energy Meter Function and with support for Remote Control via APP and Voice Control with assistants like Google Assistant or Alexa.

This module is a perfect wireless switch to control all kinds of appliances and lights from your mobile phone or your voice assistant like Alexa or Google Home.

Sonoff SV makes all your appliances smart. As long as your mobile has a network, you can switch your appliances on or off remotely from anywhere at any time. You can automate routines by setting schedules for the appliances, which will make your day-to-day life easier and more convenient. The free eWeLink application allows you to control your devices easily.

This module is a three way switch ( COM, NO and NC ) that uses the intensity of the ambient light to control directly the load at the output. Its adjustment potentiometer allows changing the sensitivity and setting the start threshold of the relay. The relay is energized when it is darker than the threshold.

POW provides yet another great functionality of measuring power consumption. Remote switch POW R2 works pretty much the same way as Basic just with added functionality of controlling and documenting power consumption. As with all the Sonoff products it works with eWeLink making it pretty much compatible with any larger smart home ecosystem.