UV Light Test Card 4-in-1, Reusable Plastic UV-A UV-B UV-C UV-D Tester NEW

• FAST UV VERIFICATION: Quickly confirms UV lamp output and UV system functionality in 7–10 seconds with a clear visual response.
• WORKS ACROSS FULL UV SPECTRUM: Sensitive to UV-A (320–400 nm), UV-B (280–320 nm), UV-C (200–280 nm), and UV-D (100–200 nm) radiation.
• REUSABLE UP TO 5000 TIMES: Test area automatically resets within ~15 seconds after UV exposure, enabling repeated use without replacement.
• SIMPLE, NO-POWER OPERATION: No batteries, electronics, or calibration required—just place under a UV source and visually assess intensity.
• COMPACT & PROFESSIONAL GRADE: Durable plastic card with 16 × 75 mm test area, ideal for labs, hospitals, HVAC systems, water treatment, and UV equipment maintenance.