Maintenance FREE fully diagnostic DGA monitoring system. This system is fully diagnostic (protects against all faults according CIGRE TB 783) . The system is completely maintenance free (there are no consumables or spare parts) needed to replace on regular basis in its entire lifetime > 15 years . It uses Vaisala NDIR tunable gas detection technology which has guaranteed accuracy with no drift and no recalibration needed. The system measures total gas pressure for sealing indication (N2 and O2 detection). It comes in powerful  web based cloud software which analyzes all the electrical tests, other inspections such as visual and thermal and corona inspections and other types of monitoring for the particular element with most complementary risk assessment. The software is also available on a mobile phone with Android + IOS application. The software has most advanced permissions access and alarms management with notifications (SMS, email)