Подскажите, работает ли D105 с импульсами счетчиков Гранд?

• амплитуда импульса, В ………………………….. 3,0–3,6
• длительность импульса, мс ……………………. 0,7–1,5

Hi, 
I just got my D105 Pulse Meter and I could connect it to my Wifi with no problem, but I notices that the connection seems to be very unstable. It seems to reconnect every few minutes. Because When I am connecting to the device via web browser and IP, it looses connection every few minutes and the web interface doesn't respond anymore. 

I also noticed that even though the wifi/internet connection is set up successfully, the Pulse meter is still blinking slowly with its LED and its wifi hotspot it still available. Shouldn't the wifi hotspot mode be disabled, once the device has established a connection to my local wifi and through that to the internet? 

В роботі D 105 1761608651,  при заміру тиску води,  фіксуються пульсації,  стрибки тису,  це можна бачити 14.07.2021 з 20.08 по 22.18 год., при можливості роз'ясніть як цього уникнути,?

dear kind Team,

how can i add manually a wifi router with hidden SSID, without being obliged to unhide it temporarily ?

till learn from you,

all my best regards,

как подключиться к скрытой сети