What is the diference touching positive,negative an neutral?

This product only could test positive and test whether the wire has high voltage or not. If you need to distinguish positive, negative and ground wires, you could purchase this: B0819VNT6V. Should you have any problem with the product or the order which fulfilled by seller, you could click the link to contact us: https://amzn.to/2LQZmFD

Well this detect where electricity is behind drywall?

That’s a very good question. I tried it, and did not get a reading on drywall. I did get a reading on switch plates.

How many adjustable sensitivity levels does it have? Can it detect a open on a wire?

This tool does not have a sensitivity adjustment. If it detects voltage it will sound an alert and light an display. The sound and light will intensify based on the voltage level. This tool is intended to detect voltage if circuit is open voltage will not be detected.

Will this work on an automotive fuse box? Or do i need one of those things that looks like a screwdriver with a light in the handle.

Have not tried it, but you are better off with the light and needle point. Fuses are to close together and you might get another reading.

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Neoteck Non Contact Voltage Detector 12-1000V AC Voltage Tester

Neoteck Non Contact Voltage Detector 12-1000V AC Voltage Tester

Product ID: 39270805

Details

Brand
Neoteck
Color
Orange
Item Weight
65 g
Power Source
Battery
Style
AC 12-1000V

⚡12-1000V AC detection range

💡Built-in emergency flashlight

🔊Audible multi-level alarm

₨7755

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Stay safe, stay sharp — never miss a live wire again!

WIDE VOLTAGE RANGE - Detects AC voltage from 12 to 1000 volts, covering all your home and professional needs.
CERTIFIED RELIABILITY - CE CAT III 600V and RoHS certified for professional-grade safety and performance.
DUAL FUNCTION FLASHLIGHT - Illuminate dark workspaces with the integrated emergency flashlight—no extra tools needed.
SHOCK FREE VOLTAGE DETECTION - Non-contact sensing keeps you safe from electric shocks every time.
INSTANT VISUAL AUDIO ALERTS - LED indicator and varying beep levels instantly identify live vs null wires.

The Neoteck Non Contact Voltage Detector is a compact, battery-powered tool designed for safe, efficient AC voltage detection from 12 to 1000 volts. Featuring non-contact sensing, audible alarms, LED indicators, and a built-in flashlight, it’s perfect for electricians, DIYers, and homeowners seeking reliable electrical safety checks. Certified to CE CAT III 600V standards, it combines professional-grade accuracy with user-friendly convenience.

Specifications

ASIN	B01JYCVU2Q
Best Sellers Rank	#2,093 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Voltage Testers
Brand Name	Neoteck
Color	Orange
Customer Reviews	4.5 4.5 out of 5 stars (13,659)
Global Trade Identification Number	05060492190127
Included Components	2x1.5V AAA batteries
Item Dimensions	6.3 x 0.79 x 0.79 inches
Item Type Name	Non-Contact Voltage Tester 12-1000V AC Voltage Detector Pen Circuit Tester Tool with Led Flashlight Beeper Pocket Clip
Item Weight	65 g
Manufacturer	Neoteck
Measurement Type	AC Voltage
Minimum Operating Voltage	48 volts_of_alternating_current
Model	PM8908C
Number of Items	1
Part Number	TL163-US
Power Source	Battery Powered
Specification Met	CE
Style Name	AC 12-1000V
Unit Count	1 Count
Upper Temperature Rating	40 °C
Warranty Description	18 Months

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