Does the power have to be on in the circuit being tested for this tester to function?

No, DO NOT use this on a live circuit! This is a continuity tester! You are looking for a break in the wire. If it doesnt light up, one of two things happened. 1. One of the wires is broken, on the wires you are testing and the wire or cable needs to be replaced. 2. The unit is defective and returned for replacement. Check battery inside to see if its good. My 1st one was defective and I had to replace it.

How to I test continuity for single long distance cable?

?? The continuity Pro sends a voltage, from the 9V battery in the main part, to the remote or alone to itself down 2 conductors. When the used with the remote, it also detects polarity. So, you always need 2 conductors with the remote, could be a pair of wires, one wire and a conduit or a long external wire you run separately.

whats up with the scanty cable?

There's 2 small test leads. A known good and known bad. That way you can check to make sure the tester can accurately detect a good and bad cable

will this test continuity without running wires to each end of the circuit? Like plug one end at source one end at receive and read that way

Download the operating manual PDF at http://www.southwiretools.com/tools/tools/40040S for circuit continuity and polarity testing.

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Description

🔧 Get Connected, Stay Efficient!

🔊 LOUD ALERT SYSTEM - Bright LEDs and pulsating beeper ensure you never miss a signal.
📏 COMPACT LIGHTWEIGHT - Weighs only 191g, perfect for on-the-go professionals.
📡 REMOTE TRACING CAPABILITY - Includes detachable remote for easy cable run tracing.
🌍 INTERNATIONAL COMPATIBILITY - Designed to meet diverse global standards.
🔍 EFFORTLESS CONTINUITY TESTING - Simply press ON and connect leads for instant results.

The Southwire TESTER, CONTINUITY PRO 40040S is a compact and efficient tool designed for professionals needing reliable continuity testing on wires and cables. With its user-friendly interface, detachable remote for tracing, and bright LED indicators, this tester ensures you can work smarter, not harder.

Specifications

Manufacturer	Southwire
Part number	40040S
Item Weight	191 g
Product Dimensions	2.54 x 2.54 x 2.54 cm; 190.51 Grams
Batteries	1 Unknown batteries required. (included)
Item model number	40040S
Size	One Size
Colour	Green
Style	Remote
Material	Blend
Power source type	9V 1
Voltage	9 Volts
Item Package Quantity	1
Measurement System	US
Display style	LED
Included components	Tools & Accessories
Batteries included?	Yes
Batteries Required?	No
Battery Cell Type	Zinc

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