
I bought this to extend my prosine 1000W inverter's display 25 feet from the inverter to keep tabs on the power and battery voltage inside.It's great.Here's what you'll like.
Instead of a male-male cable with a female-female adapter to make an extension this is a male-female 4 wire extension.25 feet per cable - add em up as long as you need to go.
Works with phone, digital phones, and even control panels for sinewave inverters - anything that uses 4 wire telephone jacks and is too short.
great price too -- cheaper than the rat shack.
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Recoton T29WHITE Modular Phone Extension Cord, 4 Conductor, White (25 feet)Product Description: Thomson provides a wide range of video technologies, products and services to consumers and professionals in the entertainment and media industries. Offering an array of state-of-the-art digital products and services, Thomson adds value to hundreds of millions of consumers around the world every year.

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