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KINGSINE K3066 Protection Relay Test SetK30 series relay tester is extremely design for overseas user, with Friendly PC software as your need, unique features and functions helps you all the way! 1. Unique self-protection system assure the powerful protection when instrument is operating, automatic stop the output when the network is abnormal ;2. Unique power switch and amplifier technology, so the output precision and power efficiency and factor are increased, which conforms to international tendency of energy save and environmental protection;3. With alarm function of housing grounding testing and external voltage input, to guaranty personal security;4. Two in one of meter and source, with function of both internal and external testing, self-calibration, oscillograph, and the duration of each oscillograph reaches 50S (optional function);5. Offer independent Aux. DC to tested devices, 0 ~ 300V/0.6A (Poleless and adjustable);6. Function of transducer and energy meter testing (optional function);7. Testing interface offer unique output monitoring function and Pre-curve-tracing function, helps more on the spot analysis