• Measure relative value of μm, Bs, Br, Hc integrated factor
• No need of wiring, direct testing, being convenient
• Automatic selecting, out of limit alarming, freely setting of the selecting limit
• Driving current for test: 0-2A, frequency for test: 20-50kHz, both continuously adjustable, Comply with actual working situation of electronic ballast
• No need of adjusting the instrument every day
• Digital display, easy to read, simply and quickly to operate
• Print B-H curve