EL Tester: 1. Simple operation 2. Reliable performance 3. Equipped with high resolution ... cell crack, cell breakage, inferior wielding, busbar breakage, etc.Features:1. Simple operation, reliable performance2. Equipped with high resolution camera, high ... -60s adjustableRelative Humidity20%-60%Picture for EL Tester: EL Tester Model: EL-1.4MS