Banggood

Zde plná spokojenost, zařízení je na AAA baterie, což je u normální WIFI důležité, nedoporučuji zařízení na různé minibaterie, ty jsou vhodné do RF433 nebo ZigBee. Tyto mají nižší spotřebu. Teď ještě by aspoň rok vydržely do výměny.

A great value and compact door/window sensor. It sends separate open and close commands. It also has manually pressable button on the front, and a tamper switch on the back but, disappointingly, both the manual button and the tamper switch just send the open command rather than unique commands of their own. Powered by an included CR2032, and even has an on/off switch.

They work great with Sonoff RF bridge. Sends two different commands for open and close so you just need to set two different alarms in the sonoff bridge. The tamper switch and the front button sent the same open command. Working great in Home Assistant too! Very fast delivery!

facil de usar, solo se pone y listo, necesitas un receptor para que funcione, yo intente con un genérico y no funciona , asi que revisa si es compatible con tu sistema o compra el receptor o zumbador

Works with Sonoff RF-Bridge, but there are only 2 signals: open and closed. The button in front and the sabotage contact send the same signal as open.

Cheap. Works with: https://www.banggood.com/GUUDGO-Tuya-APP-Smart-WiFi-GSM-Home-Security-Alarm-System-Detector-Home-Alarm-433MHz-Compatible-With-Alexa-Google-IFTTT-p-1601246.html

Funciona bien y economico y trae pocos ringtones, pero es facila de usar, Bluetooth y Micro SD, mas moderna

Except that it made it difficult for me to recognize it the security alarm axcept it after try many times. but is good for the price

Good product. Various opening and closing codes are sent. When the button is pressed, the same code is transmitted as open.

Sehr guter Tür - Fensterkontakt. Sendet einen Code wenn geöffnet wird und einen anderen Code wenn geschlossen wird.