1.Introduction:    ETCR3800 series intelligent lightning protection component tester is used to measure the performance parameters of various metal oxide varistors (MOV) and Gas discharge tubes (GDT).   The tester has high-voltage short-circuit protection, over-current protection, high-voltage presetting, range adjustment, self-inspection function, measurement range of spark voltage U1mA: 0~2000V, measurement range of leakage current: 0~ 499.9μa, good repeatability.It also has the function of setting up qualified range and judging and screening qualified products.Widely used in lightning protection component, surge protectorand other over voltage protection components performance parameters test.   The instrument adopts touch color screen, direct function, one-button measurement, easy and fast operation, with excellent test stability and anti-interference ability.At the same time, the meter is build in a large capacity rechargeable lithium battery, and with data storage, qualified judgment, automatic shutdown, USB data upload and other functions.   ETCR3800 series lightning components tester has shockproof, dustproof, moisture-proof structure, the whole machine is beautiful and durable, adapt to bad working environment.It is the commonly used necessary instruments in the lightning protection, power, communication, electromechanical installation and maintenance, lightning protection components manufacturers, and industrial enterprise departments.                      2.Type series& 65306;     Product  model :ETCR3800A     MOV test: Yes     GDT test: Yes     Insulation resistance test: No                3.Range and measurement accuracy& 65306;                       Functions        Iteam        Measuring range        Accuracy of measurement        Resolution                    MOV        voltage 0~2100V        20& 65374;2000V        ±2% RDG 3 DGT        1 v                    current 0~1.5mA        0& 65374;1000μA        ±2% RDG 10 DGT        0.1 μA                    GDT        voltage0~2100V/1.5mA        20& 65374;2000V        ±2% RDG 3 DGT        1 v                                 4.Specification& 65306;                      Battery       DC 7.