The Atto D4 DC is a DC energy transducer, equipped with an extremely accurate and versatile microprocessor designed to meet the most demanding applications of electrical parameters analysis and energy supply monitoring in the photovoltaic, telecommunication, battery systems, and more. Measures voltage, current, power and energy, max and min values of voltage and current. Input into the transducer is from with 60mV or 100mV for shunt.

The meter can be integrated with other Electrex products to set up a monitoring system for energy or other parameters (temperature, humidity, luminosity, etc.) and alarms.

The meter can also be remotely accessed via GSM or Internet. This makes it is possible to constantly monitor the status of the plant to check manually or automatically for possible malfunctions (e.g. a string of the photovoltaic plant that stops producing photovoltaic energy), any theft or tampering (e.g. solar panels ) or access to restricted areas.

The Atto D4 DC HALL has the same features of the Atto D4 DC but has been designed for the CTS DC Hall current transformers connected to the meter through a converter.