The device is called PureGo PD100. It is a rounded gadget about 10 centimeters wide and about 5 centimeters thick. It has an LED backlight that signals the presence of contaminants.
Place the device in a bowl of water and fruit. It can detect pesticides and other contaminants. In addition to the LED panel, the result is also displayed on a smartphone connected to the PureGo PD100.
The cleanliness sensor is equipped with a rechargeable battery and can operate on a single charge for up to six hours. Charges with wireless charging cradle. So far, PureGo PD100 is only sold in the US and costs $ 200.