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BodyStim 7000 TENS Therapy Pain Relief System | On Sale! >>
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TENS & Electrotherapy
Interferential (IF)
IF 4000 Dual Channel Interferential Unit
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IF 4000 Dual Channel Interferential Unit
5/5 rating
6
Review(s)
6
5
5/5 rating
1
5
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IF 4000 Dual Channel Interferential Unit
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Your Price:
$69.95
Retail Price
Retail Price:
$74.95
Your Savings:
$5.00
(7%)
Part Number:
DF4000
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IF-4000 Dual Channel Interferential Unit
The IF-4000 Interferential Unit helps control pain and speeds the healing process by delivering small pulses of electrical current to an injury through electrodes that pass current through the skin and stimulate underlying nerves producing a mild, tingling sensation to provide relief from chronic and acute pain.
Interferential is used for very localized areas where deep current for pain control or increased circulation is needed.
IF 4000 StimulatorTechnical Specifications:
Carrier Frequency: 4000 Hz., fixed
Interference Frequency: 4001-4150 Hz
Difference Frequency: 1-150 Hz., adjustable
Output Voltage: 0-16 volts (through 500 Ohms)
Waveform: Symmetric bi-phasic square
Pulse Width: 125 Microseconds for each phase
Four Frequency Shift: Continuous, 1/1 abrupt, 8/8 abrupt, 10/10 ramped options
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5/5 rating
It Works Great
This unit delivers the same effect as the big one in my PT office. IF seems to help me more than TENS. I'm really happy with it. I use it on upper shoulders/back so I need help placing the electrodes. It's a simple unit and easy to use. Don't plan to use it on batteries - it draws too mich power. Use the AC adapter for best performance.
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2 of 2
Found Helpful
Reviewed by:
Kathy
from Mobile, AL on 5/22/2025
5
5
5/5 rating
Pain relieved
Great unit,not as intense as others but just right for my pain levels.
Did you find this helpful?
Reviewed by:
Patrick
from Colorado Springs on 11/10/2022
5
5
5/5 rating
Ms.
I purchased this IF4000 and love it. Sadly I dropped it and then purchased a second unit. Intermittent use throughout the day has finally reduced my pain significantly. I still deal with extensive swelling.
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7 of 8
Found Helpful
Reviewed by:
S.A.
from Rochester, NY on 10/10/2020
5
5
5/5 rating
Great Price for Effective Relief
This unit is very effective. My wife has had recurring hip pain and even our TENs unit was not providing lasting relief. She went to the chiropractor where he used an interferential stim unit. This provided an effective, lasting therapy to the sore hip area. We elected to search to see if there were affordable units available. TENSpro had the best price on home grade units, hands down. It was delivered sooner than originally expected in perfect condition. She has used it several times and told me that it works well and provides lasting relief.
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6 of 7
Found Helpful
Reviewed by:
Warren
from STERLING on 10/1/2020
5
5
5/5 rating
Mr.
This thing works great and helps get my muscles relaxed during the times I am away from the chiropractor.
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6 of 8
Found Helpful
Reviewed by:
John Larkin
from Dallas on 9/5/2017
5
5
5/5 rating
Add Review IF 4000 Dual Channel Interferential Unit
This unit works great for my wife and I to relieve arthritis joint pain. 15 minutes two or three times a week is almost as effective as acupuncture with electrode but not as expensive.
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33 of 36
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Reviewed by:
Bennie
from Battle Ground on 1/17/2015
5
5
Q:
Are the electrodes for the IF 4000 reusable or are they one-time use? If I need to purchase additional electrodes, what are the appropriate electrodes to order for this machine?
Asked by:
Thomas King
- 8/13/2025
A:
The electrodes that come standard with each unit are reusable! You can get about 5-8 uses out of them before the gel starts to wear down. Please note that IF requires 4 electrodes in an "X" formation. All the electrodes that come in a 4/pack on the website are compatible with the unit.
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Answer provided by:
TENS Pro Management (8/14/2025)
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Q:
Can these be purchased by patients for home usage?
Asked by:
Christy
- 9/15/2025
A:
Yes! Patients can purchase these units along with supplies.
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Answer provided by:
TENS Pros Management (9/16/2025)
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Questions about this item? Ask here.
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THE PROS PICKS
TENS & Electrotherapy
TENS Units
Muscle Stimulators (EMS)
Interferential (IF)
Russian Stim & Microcurrent
InTENSity Devices
Electrodes
Electrotherapy Supplies
Therapeutic Ultrasound
Clinical Units/Supplies
Lotions & Gels
Batteries & Chargers
Lead Wires
Back Pain Relief
Conductive Garments
Pillows & Cushions
Kinesiology Tape
Home Medical Items
Assisted Daily Living
Canes & Crutches
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Rehab & Exercise
Thermometers
Blood Pressure Monitors
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Neck
Back
Elbow
Wrist/Hand
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Ankle/Foot
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Hot & Cold Therapy
Stools & Seat Lifts
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