... HZ Safety Rating: CAT II, 1000V Blue Non-Contact Voltage Detector Pen AC Volt Sensor Tester Alert 90~1000V LED, YFT397A ... Trade Manager: cnyaixun DescriptionThe voltage detector is designed for electrical testingNon-contact detection, safe and easy ... sometimes our mail servers have errors. Blue Non-Contact Voltage Detector Pen AC Volt Sensor Tester Alert 90~1000V LED, YFT397A ...