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Southwire Tools & Equipment 40116N Voltage Detector, 100-600V AC

Q: How to replace batteries?

At the end of the name 'Southwire' is a small recess. Push in with pin or pencil point and pull the back of the tester out exposing the circuitry. Roll the tester over opposite the pocket clip and the two AAA batteries are exposed.

Q: Does this model make a different tone on nuetral and hot? Its hard to tell which review goes to which model.

The 40116N only produces one tone when it detects AC Voltage.

Q: Is this product made in the USA?

No…. It says in description - product origin China

Q: The tester I received is defective. I am either needing replaced or a refund. I have purchased this product before and am generally satisfied.

Souethwire and will be free of defects in material and workmanship (“Defects”) for 12 months following ship date, under normal use and regular service and maintenance

Product ID: 737822220

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Details

Brand
Southwire &
Power Source
Ac
Style
100-600V AC。
Color
グリーン、レッド。
Item Weight
0.16 Pounds

⚡100-600V AC detection range

💡Built-in flashlight for low light

🔋Auto power-off extends battery life

Frequently Bought Together

Southwire Tools 40116N NCV Detector 100-600V AC

Southwire 40022S Receptacle Tester; Black

Southwire 40150N Advanced AC Non Contact Voltage Tester Pen; Dual Range 12-1000VAC/100-1000VAC; Non Contact Voltage Detector with LED Flashlight; 6' drop test rated; and IP67 waterproof; NCVT

Description

⚡ Stay powered, stay safe — voltage detection made effortless!

SAFETY CERTIFIED - CAT IV 600V rating with UL and CUL listings ensures top-tier protection on the job.
SMART BATTERY SAVER - Auto power-off after 5 minutes of inactivity maximizes battery longevity, so you're always ready.
COMPACT LIGHTWEIGHT - Pen-style design at just 72.6g fits comfortably in your pocket for on-the-go convenience.
INTEGRATED FLASHLIGHT - Built-in LED flashlight illuminates dark workspaces, making voltage checks effortless anytime.
PRECISION VOLTAGE DETECTION - Instantly detects 100-600V AC with visual and audible alerts for confident diagnostics.

The Southwire 40116N Voltage Detector is a compact, pen-style non-contact tester designed for professionals needing quick and reliable 100-600V AC voltage detection. Featuring audible and visual alerts, an energy-saving auto shutoff, built-in flashlight, and CAT IV 600V safety certification, it’s engineered for precision, convenience, and workplace safety.

Specifications

Manufacturer	Southwire
Part number	59992040
Item Weight	72.6 g
Product Dimensions	2.54 x 2.54 x 2.54 cm; 72.57 g
Batteries	2 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Size	One Size
Color	グリーン、レッド。
Style	100-600V AC。
Material	ブレンド
Power source type	Ac
Measurement System	US
Specification met	Cul Listed
Included Components	テスター、NCVT 40116N。
Batteries Included	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Item Dimensions LxWxH	25 x 25 x 25 mm

Have a Question? See What Others Asked

How to replace batteries?

Does this model make a different tone on nuetral and hot? Its hard to tell which review goes to which model.

Is this product made in the USA?

The tester I received is defective. I am either needing replaced or a refund. I have purchased this product before and am generally satisfied.

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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