it seems a very useful device. it’s easy to use & easy to install . i think it would protect my house from high or low voltage & current. it has also earth leakage protection. it looks good material product. it deliver before the estimate time & safe delivery. thanks for ali Express.

Very fast delivery, good protective packaging, will order again, long CT wires, not tested yet. with din rail adapter

The parcel arrived a little crumpled, but the goods are intact, the packaging and the instruction (in English) are in the photo, the iron is connected for the test, the reading is consistent, the device is not heated, it is possible to set the time, but T. I will not install any built-in batteries for storage and time countdown. There are a lot of functions, as stated, for example, power, current, voltage, hertsy, etc. Are present, the screen readability is excellent… In the end-I am satisfied with the product, I recommend it for purchase, delivery in a couple of weeks.

Very excellent and easy to install

Fast shipping and quality material, I haven’t been able to test it yet