MATEŞ ELEKTRONİK, which has been designing and producing meter setting table and many other test devices for 30 years, manufactures 0.05 class wattmeters with the experience gained from its own production TRSA Counter Setting Table, which is currently in use in many organizations in Turkey and in various countries. MATEŞ CAL has been designed in an electronic structure with the latest measurement technologies to meet today's requirements. The device has a touch screen. 3 parameters (Voltage, Current, Angle, Watt, Var, VA, PF) selected for all phases and frequency information are displayed on the screen in real time.