E-Field Detector

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Detect electric field strength and charge polarity quantitatively At last, electric fields are made visible. Arbor Scientific’s E-Field Detector is a sensitive, student-friendly in strument that lets teachers and students directly investigate the effects of positive and negative electrical charge. Using its handheld probe, students can “sniff out” unknown charges, observe charging by induction, and explore how electric fields behave in space—turning invisible forces into observable results. The detector doesn’t just show that charge is present; it reveals sign and relative magnitude as well. An LED display lights red for positive charge and blue for negative charge, with additional LEDs indicating stronger fields. Designed for both demonstrations and labs, the E-Field Detector makes electrostatics concrete, visual, and engaging. Why Teachers Love the E-Field Detector Makes electric fields visible: Students see charge effects immediately, removing the abstraction from electrostatics. Identifies sign and strength of charge: Color-coded LEDs clearly distinguish positive and negative charge while showing relative magnitude. Supports inquiry-based learning: Students can locate unknown charges, test predictions, and draw conclusions from what they observe. Flexible for demo or lab use: Equally effective as a lecture demonstration or a hands-on student investigation. Expandable to quantitative work: Rear ports allow connection to a voltmeter for deeper analysis. Show more