buy for sale EMF wire wiring shield discount surplus bargain shop cable cord low emf
Tel: +1-518-608-6479          EMF Wire Shielding  
Block magnetic fields, electric fields to/from wiring    
search by part numberSearch by Part Number          E-mail    Fax/mail order form     Cart      
RF Meters


Breakthrough in Low EMF Wiring!!
Exclusively from The EMF Safety SuperStore!

At last, we are proud to offer wiring which actually reduces EMF emissions to extremely low levels. Patented design incorporates both of these EMF emission suppression features: special internal wire configuration to maximize cancellation of magnetic field emissions: 2 hot, 2 neutral, and one ground wire and shielded wrapping to completely eliminate electric field emissions!

The result is a high quality wire with the lowest possible EMF emissions (over 90% reduction compared to standard wire). Replacing existing wire with MµCord is likely to be much less costly, more effective, and probably more convenient than shielding.

See How MµCord compares to standard ROMEX® carrying 30 Amps at 120V:

Standard ROMEX® Wire
Field (V/m)
Field (mG)
Field (V/m)
Field (mG)
534695.807.68 (92% reduction)
1030024.000.96 (96% reduction)
202406.000.12 (98% reduction)
401551.500.014 (99+% reduction)
8074.3700.0019 (99+% reduction)
10065.2400.00096 (99+% reduction)
20044.0600.00012 (99+% reduction)

Includes ground wire. Note: MµCord will not compensate for unbalanced current. Make sure you correct wiring errors when you re-wire with MµCord. Not UL listed for in-the-wall wiring applications.

MµCord™ flexible “appliance cord style” for re-wiring lights and appliances, making extension cords, etc. 20AWG tinned-copper stranded wire. Rated for 8 Amps, 300 Volts. Ľ inch outer diameter. Black. Plan to buy ahead of time and outgas this material if you are chemically sensitive. Specify length in feet when ordering.

MµCord (Cat. #A223) ......... $1.75 per foot add to cart

MµCord, 100 feet or more (Cat. #A223-100) ......... $1.31 per foot add to cart

Make Your Own Shielded
Extension Cord or Appliance Cord

Plug Socket MµCord™ can be used to make extension cords and appliance cords. Simply cut wire to desired length and add a plug to one end, or plug one end and socket on the other. Easy to do with a screwdriver, instructions included. Rated for 15A – 125V These plugs are suitable for North America. Plugs and sockets for other countries can be used, but you must obtain them locally. Color/style may vary.

NEMA 5-15P: 3 prong grounded plug (Cat#A224P) … $5.95 add to cart
NEMA 5-15R: 3 prong grounded socket (Cat#A224R) … $5.95 add to cart


3 Outlet Socket Adapter

More Outlet Space

Need more room at the end of your cords? This sturdy adapter converts one outlet into three. Uses standard North American 3-prong outlet. Handles up to 15A safely. Color/style may vary.
3 Outlet Socket Adapter (Cat. #A804) .............. $2.95 add to cart



Need Magnetic Shielding Conduit Just For Wiring?

Spira-Shield provides high permeability magnetic shielding and physical protection for any ROMEX® electrical wiring. Made of .010" thick Magnetic Shielding Alloy. Slips over standard wiring to provide that peace of mind when it must be near electromagnetically active sources. Also reduces interference in stereo and telephone lines. Ground it for the added benefit of E-Field shielding.

Shielding performance depends on many factors, including field strength and tube diameter.
Here are some examples based on DC field, perpendicular to the THIN tube:

Field outside of tube Field inside tube
5 Gauss........................ 1 mG
1 Gauss........................ 0.2 mG
250 mG........................ less than 0.2 mG

For clarification: this item protects the cable inside the shield from magnetic fields originating outside the shield.
Thin is 3/8" ID and 1/2" OD. Wide is 3/4" ID and 7/8" OD. Priced per 10 foot length.

Thin Spira-Shield (Cat. # A275-T).....................$241.00 add to cart

Wide Spira-Shield (Cat. # A275-W)...................$291.00 add to cart

1/2 inch and 1 inch ID also available as a special order. Contact us for details.


"Make Your Own Conduit And Save!"

Magnetic Shielding Foil

Used for years in industry to shield delicate electronic components from EMFs, this 80% nickel alloy magnetic shielding foil is now available at affordable prices for home and office use. The thinner (0.004" thick) material is easy to trim with scissors and shape by hand. Thicker material offers better shielding performance but requires snips to cut. Can be formed into magnetic barriers on cellular phones, microwave ovens, doorbell transformers, VDTs, buried wiring, and more. With snug fitting shapes, get as much as 75% attenuation of the magnetic field with one thickness. Use multiple layers for even greater reduction. Foil is available in two thicknesses and can be ordered in any length. (We recommend the use of a gaussmeter to determine the proper shape and positioning of the magnetic shield, and to confirm that the fields have been adequately reduced.)

Can be formed into cylindrical magnetic barriers around wiring to protect the shielded wire from magnetic fields originating outside the shield.

Can also be placed flat against wiring to shield an area from the magnetic fields emitted by the wire. Use multiple layers for even greater reduction.

Foil is 0.004" or 0.010" in thickness and 15" wide and can be ordered in any length. (We recommend the use of a gaussmeter to determine the proper shape and positioning of the shielding, and to confirm that the fields have been adequately reduced.)
CAUTION: Foil has sharp edges!

Magnetic Shielding Foil:

15" wide, 0.004" thick (Cat. # A276-15) .... $24.95/linear ft add to cart

15" wide, 0.010" thick (Cat. # A276-10) .... $31.95/linear ft add to cart


Reduces Electric Fields From Live Wires To Ground Zero!

Conductive Tubing Composed of electrically conductive black polyethylene and great for shielding electrical cords. It's easy to slide any electrical cord Conductive Tubing (even fits those giant dryer plugs!) through this 4" wide (when flat) sleeve without having to remove the plug from the end of the cord. Surface resistivity <1000 ohms/square. Only 4 mil thick, it won't hold up to tearing, heat or abuse, but it's tough enough to do a great job on the lamp cord by your bed, the air conditioner cord, or even cables in your car. Use a grounding cable, and please be careful when handling electrical cords. Specify desired length.
Conductive Tubing (Cat. #A1211) .............. $1.15 /lin ft add to cart
Case Price [750 feet] (Cat. #A1211) ................ $199.00 add to cart


Ferrite Snap Bead "Reduce RF Noise in Wiring"

Cables can act as an antenna, especially if they pass close to a strong source of radiofrequency radiation. One study has suggested that if the cable of a hands free mic passes near the phone's antenna, it can pick up some radiation and transmit it to your ear. Our ferrite snap bead is designed to reduce RF radiation in the cable. Made in 2 halves, you simply press it around the wire at any convenient location. Couldn't be simpler. It is small and lightweight enough to be almost unnoticable, yet powerful enough (50 ohm impedence minimum) to control nasty radiation. These are brand new, top quality and will accommodate wires up to 5 mm (3/16 inch) in diameter. About 1 inch long, grey color. If you are concerned about RF radiation in wiring, this is the answer.

Ferrite Snap Bead (Cat. #A238) …................. $4.95 add to cart


Check Sockets for Improper Wiring and Faulty Ground!

Socket Tester Including Proper Ground Test Socket Tester Including Proper Ground Test You know what happens when we ass-u-me? Electric sockets can be bad for a number of reasons: a wire can short or fray, a wire can become disconnected, or corrode at the contact, or the wires can be connected to the wrong contact altogether! These problems can be a fire hazard, a shock hazard, a problem for polarized appliances, and definitely a problem if you are using the socket’s ground connection to Earth your shielding.

There is no need to guess because it is so easy to test for proper wiring at a socket. Simply plug in the tester and look at the result. Large LCD display indicates if ground is missing or faulty. Easy to see LEDs light up to indicate all these possible problems:

- Voltage on ground connection
- Disconnected Ground
- Disconnected Neutral
- Disconnected Hot
- Interchanged Neutral and Hot
- Interchanged Ground and Hot
- Interchanged Ground and Hot, Neutral missing
- GFI function

This inexpensive tester can be used over and over and gives either peace of mind or a specific earning about what to do. Don’t ground to your socket without it! North American Plug only. Rated for 120V, 50/60 Hz.

Socket Tester Including Proper Ground Test (Cat. #A452) ... $14.95 add to cart


Outlet Shut-Off Switch Reduce Emissions at the Source

Outlets and switches can emit strong electric and magnetic fields. Conventional shielding with mumetal is possible, but tricky because it’s hard to make it look good, plus you need access to be able to use the switch/outlet. Now you can simply replace your Switch Plate or Outlet Cover with these custom shielded ones. Magnetic field reduction is 30 to 60% up close to the surface, depending on wire configuration. Electric field reduction is typically 75%. Attractive polished chrome finish with a nice perimeter detail. Solid metal (shielding alloy) and durable. Includes mounting screw(s). Two sizes: oversize (3˝x5˝”) and super jumbo (5˝x7˝”) for maximum protection. Make sure you have enough room between outlet and nearby moldings for these larger than standard covers. Very economical!

Outlet Shut-Off Switch

Shielded Switch Plate:

Oversize (Cat. #A720) ................................ $9.95 each add to cart
   Oversize, 10 pack (Cat. #A720-10) ............... $80.00 add to cart

Super Jumbo (Cat. #A721) ........................ $29.95 each add to cart
   Super Jumbo, 10 pack (Cat. #A721-10) ........ $250.00 add to cart

Shielded Outlet Cover:

Oversize (Cat. #A722) ................................ $9.95 each add to cart
   Oversize, 10 pack (Cat. #A722-10) ................ $80.00 add to cart

Super Jumbo (Cat. #A723) ........................ $29.95 each add to cart
   Super Jumbo, 10 pack (Cat. #A723-10) ........ $250.00 add to cart

Shielded Extension Cord


Shielded for Both Electric and Magnetic Fields

These are no ordinary extension cords. The North American style extension cords are made with 100% MuCord™ for superior electric and magnetic shielding. Field emission is dramatically reduced compared to ordinary extension cords. Use them with your computer equipment, lighting, small appliances, power tools, and so on. Great way to move Stetzer (Dirty Electricity) filters away from where the people are. You can link several together to get a longer length. If you have power cords anywhere near your bed, workstation, couch or other main living area, run this extension cord instead… to reduce EMF to nearly zero!

 - Indoor use only
 - NEMA 5-15 plug and socket (3-prong, grounded)
 - Plug and socket color/style may vary
 - Up to 14 Amp, 120V

Extension Cord, Shielded:

 - 6 foot long (Cat. #A738) ............................................. $33.40 add to cart

 - 12 foot long (Cat. #A739) ........................................... $42.90 add to cart


Power Cord, Shielded "Shielded for Both Electric and Magnetic Fields"

Replace the power cord on your lamps, hair dryer, small appliances, power tools and more with these MuCord™ power cords to reduce electric and magnetic fields from the cord to nearly zero. Standard 3-prong (North American Style) plug is included. Patented wiring configuration inside the cable causes cancellation of the fields. Use whenever the power cord travels near a person’s body. Very unique!

NEMA 5-15 plug (3-prong, grounded)
Up to 14 Amp, 120V

(Requires knowledge of how to properly wire the free end to your electric device. Instructions included.)

Power Cord, Shielded:

 - 6 foot long (Cat. #A736-6) ............................................. $26.45 add to cart
 - 12 foot long (Cat. #A736-12) ......................................... $36.95 add to cart

These additional items are available, click below for more information or to order:

Quad Shielded RG6
Quad Shielded
RG6 Coaxial Patch Cable,
White, 100 Feet
Quad Shielded RG6
Quad Shielded RG6
Coaxial Patch Cable,
White, 50 Feet
Quad Shielded RG6
Quad Shielded RG6
Coaxial Patch Cable,
White, 25 Feet
Shielded Cat6a
Snagless Shielded Cat6a
Ethernet Patch Cable
Blue, 25 Feet
Shielded Cat6a
Snagless Shielded Cat6a
Ethernet Patch Cable
Blue, 50 Feet
Shielded Cat6a
Snagless Shielded Cat6a
Ethernet Patch Cable
Blue, 100 Feet
Shielded USB Cable
Shielded USB Extension Cable
2.0 Type A Male to Female
5 Feet, Blue
Shielded USB Cable
Shielded USB 2.0 Cable
A-Male to B-Male, 6 Feet
Shielded USB Cable
Shielded USB 2.0 A/B Cable
with Ferrite Chokes
(M/M) 6-feet

Home Go To Checkout
776B Watervliet Shaker Rd      Latham NY 12110-2209      USA
Order Toll Free: (8 8 8) 5 3 7 - 7 3 6 3
International: +1   ( 5 1 8 )   6 0 8 - 6 4 7 9
Fax: +1   ( 3 0 9 )   4 2 2 - 4 3 5 5

Send E-Mail to Less EMF Inc.

home emf

ROMEX® trademark is owned by Southwire Company

Copyright 1996-2014, Less EMF Inc.