# Tested on 1. MODEL D06 TYPE 1. Built on Tuya WiFi module TYWE3S (ESP8266 chip). Replacement not required. Total triggering time about 1.5 sec. [Photo](http://git.zh.com.ru/alexey.zholtikov/zh_espnow_open_sensor/src/branch/esp8266/hardware/MODEL_D06_TYPE_1). 2. MODEL D06 TYPE 2. Built on Tuya WiFi module CBU (BK7231N chip). Replacement with ESP-M2 (ESP8285 chip). Total response time about 0.5 sec. [Photo](http://git.zh.com.ru/alexey.zholtikov/zh_espnow_open_sensor/src/branch/esp8266/hardware/MODEL_D06_TYPE_2).