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5-36V LCD Digital Circuit Tester Voltage Meter Pen Car Truck Circuit Scanner Power Probe Automotive Diagnostic Tool

Features: Backlit LCD display for accurate voltage readings. LED indication of red for power and green for ground. Spiral cable

Professional BIO Meter Tester Water Quality Mineral Test Pen Conductive Stylus Energy Pen

Bioenergetic test pen, water, mineral water, clean water and energy used for detection, the difference between common microelements and minerals