... Performance 3. High resolution camera 4. High efficiency EL Testing Machine Detials:EL Tester (Electroluminecent Tester) is applied to inspection ... detecting problems like solar cell crack, cell breakage, inferior wielding, busbar breakage, etc.Features:1. Simple operation, reliable performance2. Equipped ... adjustableRelative Humidity20%-60%Picture for EL Tester: EL Testing Machine Model: EL-1.4MS-2