WACO Digital Earth Resistance Tester is direct replacement of the conventional hand generator type tester. It is designed for measurement of the resistance of earthing used in the electrical equipment as well as for measurements of ground resistivity. It can also be used for measurements of the other low regular and liquid resistance. This Instrument finds wide application for testing eathing installations in power based industries, telecommunication net-works and electrical traction systems, etc. This is powered by rechargeable Nicd Cells, A LCD low battery indication appears when its battery goes down, which can be recharged by connecting Mains AC Supply through Charging Leads