The Megger MIT515 5kV lightwEight and compact insulation tester are used for diagnostics testing and maintenance of high voltage electrical equipment. It measures insulation resistance up to 10 Tohm and offers tests such as polarisation index and dielectric absorption ratio testing. The device has lithium-ion batteries and the large, clear and easy to read display makes it suitable for use in sunlight and poorly lit environments. The information displayed by it includes resistance, voltage, leakage current, capacitance, battery status and time constant. The elapsed time is also displayed constantly, which reduces the need for a separate timer.