UT502 insulation testers are used to measure the insulation resistance of electrical  equipment and household appliances. It is used for insulation resistance measurement for insulation materials and various kinds of electric equipments such as transformer, electric machines, cables, switches, electrical appliance, a ideal tool for electric maintenance, testing and inspection.

• 2000 count LCD display, overload indication, backlight
• AC voltage measurement, auto power off
• Auto discharge
• Continuous measurements mode, red warning light and buzzer function
• Continuous low resistance measurement 
• PI and DAR measurement, auto resistivity calculation 
• Low resistance returning to zero function to improve accuracy

Technical data:

• Short-circuit current <2mA
• Low resistance (Ω)0.01Ω~200Ω (about 5.0V/>200mA）±(2%+3)
• AC voltage (V)30V~600V ±(2%+3)