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From amplifiers to sleep systems to EMG machines, we have the new, used and refurbished medical devices your organization needs. Whether you need a wide range of used medical equipment or are looking for medical equipment for sale, browse our site now for a wide range of products and models from the world’s most trusted manufacturers, including Natus, Cadwell, Nihon Kohden, Philips Respironics, Viasys, Compumedics, and more.

Whether you need to upgrade equipment or find quality used EEG equipment for sale, shop reLink Medical now for one of the widest selections in the industry.

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EEG / EMG Machines

  • Compumedics DWL Compumedics DWL Grael 8028-0001-01 Head Box EEG EMG Sleep Systems reLink Medical
    Compumedics DWL Compumedics DWL Grael 8028-0001-01 Head Box EEG EMG Sleep Systems reLink Medical
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    Compumedics DWL Grael 8028-0001-01 Head Box

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    OEM: Compumedics DWLMaterial: Grael 8028-0001-01 Common Name: Head Box Item Weight: 2.3 Serial Number: 163095 SKU#: Inv-00533228 Powers On: Unable ...

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    Xltek Ultra IV Ultrasound Therapy Console

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    OEM: XltekMaterial: Ultra IV Common Name: Ultrasound Therapy Console Model Name: EX-UL4 Item Weight: 22 Serial Number: ULIV9710016 SKU#: Inv-005038...

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  • Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
    Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
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    Natus 012378 Xltek Sleep/EEG Breakout Unit

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    OEM: NatusMaterial: 012378 Common Name: Xltek Sleep/EEG Breakout Unit Item Weight: 1 Serial Number: 012378093194 SKU#: Inv-00572499 Powers On: Unab...

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  • Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
    Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
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    Natus 012378 Xltek Sleep/EEG Breakout Unit

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    OEM: NatusMaterial: 012378 Common Name: Xltek Sleep/EEG Breakout Unit Item Weight: 1 Serial Number: 012378020147 SKU#: Inv-00572556 Powers On: Unab...

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  • Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
    Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
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    $237.00
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    Natus 012378 Xltek Sleep/EEG Breakout Unit

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    OEM: NatusMaterial: 012378 Common Name: Xltek Sleep/EEG Breakout Unit Manufactured Date: 2018-06-11 Item Weight: 1 Serial Number: 012378103264 SKU#...

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  • Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
    Natus Natus 012378 Xltek Sleep/EEG Breakout Unit EEG EMG Sleep Systems reLink Medical
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    Natus 012378 Xltek Sleep/EEG Breakout Unit

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    OEM: NatusMaterial: 012378 Common Name: Xltek Sleep/EEG Breakout Unit Manufactured Date: 2018-06-11 Item Weight: 1 Serial Number: 01237810361 SKU#:...

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    The Prometheus Group Pathway MR-20 Dual Channel EMG System

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    OEM: The Prometheus GroupMaterial: Pathway MR-20 Common Name: Dual Channel EMG System Item Weight: 1 Serial Number: 01023756 SKU#: Inv-00609481 Pow...

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    Natus 00741 TREX HD Video Interface

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    OEM: NatusMaterial: 00741 TREX HD Common Name: Video Interface Item Weight: 1 Serial Number: 007741F1790 SKU#: Inv-00593290 Powers On: Unable to Ch...

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  • Cadwell Laboratories Inc. Cadwell Laboratories Inc. 190249-200 EEG Remote Input Headbox EEG EMG Sleep Systems reLink Medical
    Cadwell Laboratories Inc. Cadwell Laboratories Inc. 190249-200 EEG Remote Input Headbox EEG EMG Sleep Systems reLink Medical
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    Cadwell Laboratories Inc. 190249-200 EEG Remote Input Headbox

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    OEM: Cadwell Laboratories Inc.Material: 190249-200 Common Name: EEG Remote Input Headbox Item Weight: .4 Serial Number: NONE SKU#: Inv-00586897 Pow...

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    Viasys Healthcare TecaSynergy 040C004 EMG Amplifier

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    OEM: Viasys HealthcareMaterial: TecaSynergy 040C004 Common Name: EMG Amplifier Item Weight: 2 Serial Number: 050911 SKU#: Inv-00608178 Powers On: U...

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    $166.00
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    Natus Xltek Natus Photic Stimulator

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    OEM: NatusMaterial: Xltek Common Name: Natus Photic Stimulator Manufactured Date: 2017-04-07 Item Weight: 17 Serial Number: 10440N2413 SKU#: Inv-00...

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    Natus Xltek Natus Photic Stimulator

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    OEM: NatusMaterial: Xltek Common Name: Natus Photic Stimulator Item Weight: 7 Serial Number: 10440D3863 SKU#: Inv-00577967 Powers On: Yes Includes ...

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    Nihon Kohden EEG-1200A Electroencephalograph

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    OEM: Nihon KohdenMaterial: EEG-1200A Common Name: Electroencephalograph Manufactured Date: 2012-01-01 Item Weight: 27 Serial Number: 00943 SKU#: In...

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    Cadwell Laboratories Inc. 190223-200 Sierra Wave 2 Channel Amplifier

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    OEM: Cadwell Laboratories Inc.Material: 190223-200 Common Name: Sierra Wave 2 Channel Amplifier Model Name: 190223-200 Item Weight: 1.2 Serial Numb...

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    Xltek Connex Base Station

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    OEM: XltekMaterial: Connex Common Name: Base Station Manufactured Date: 2009-07-01 Item Weight: 4 Serial Number: 103960524C1 SKU#: Inv-00612154 Pow...

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    Xltek Connex Base Station

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    OEM: XltekMaterial: Connex Common Name: Base Station Item Weight: 3.3 Serial Number: 103960521C1 SKU#: Inv-00612029 Powers On: Yes Includes Power C...

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    Xltek Connex Base Station

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    OEM: XltekMaterial: Connex Common Name: Base Station Manufactured Date: 2009-07-01 Item Weight: 3.3 Serial Number: 103960519C1 SKU#: Inv-00612042 P...

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    Xltek Connex Base Station

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    OEM: XltekMaterial: Connex Common Name: Base Station Manufactured Date: 2007-06-01 Item Weight: 2 Serial Number: 10396001A SKU#: Inv-00611677 Power...

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    Xltek Connex Base Station

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    OEM: XltekMaterial: Connex Common Name: Base Station Item Weight: 3.3 Serial Number: 103960506B5 SKU#: Inv-00612035 Powers On: Yes Includes Power C...

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    EB Neuro SpA Sandman D.2102 Digital 32+ Amplifier Polysomnograph Sleep Lab

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    OEM: EB Neuro SpAMaterial: Sandman D.2102 Common Name: Digital 32+ Amplifier Polysomnograph Sleep Lab Item Weight: 3 Serial Number: 02406 SKU#: Inv...

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    EB Neuro SpA Sandman D.2102 Digital 32+ Amplifier Polysomnograph Sleep Lab

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    OEM: EB Neuro SpAMaterial: Sandman D.2102 Common Name: Digital 32+ Amplifier Polysomnograph Sleep Lab Manufactured Date: 2009-01-01 Item Weight: 3 ...

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    EB Neuro SpA Sandman D.2102 Digital 32+ Amplifier Polysomnograph Sleep Lab

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    OEM: EB Neuro SpAMaterial: Sandman D.2102 Common Name: Digital 32+ Amplifier Polysomnograph Sleep Lab Item Weight: 3 Serial Number: 01186 SKU#: Inv...

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    EB Neuro SpA Sandman D.2102 Digital 32+ Amplifier Polysomnograph Sleep Lab

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    OEM: EB Neuro SpAMaterial: Sandman D.2102 Common Name: Digital 32+ Amplifier Polysomnograph Sleep Lab Item Weight: 3 Serial Number: OTA05891 SKU#: ...

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    Natus 10395 Xltek EEG Breakout Unit

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    OEM: NatusMaterial: 10395 Common Name: Xltek EEG Breakout Unit Manufactured Date: 2015-04-08 Item Weight: 1 Serial Number: 2110395D4645 SKU#: Inv-0...

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What are EEG and EMG Machines?

EEG and EMG machines are diagnostic tools used in clinical practice to monitor and evaluate electrical activity in the brain and muscles. An EEG machine (electroencephalogram) records brain wave patterns through surface electrodes placed on the scalp, helping detect abnormalities in brain activity, such as epilepsy, brain disorders, or sleep irregularities. It’s frequently used in settings ranging from routine EEG testing to monitoring in medically induced coma cases.

EMG (electromyography) devices measure electrical signals produced by muscle contractions, helping diagnose neuromuscular conditions such as ALS or nerve damage. EEG systems are also available in ambulatory EEG formats, allowing patients to undergo testing while continuing daily activities. These devices generate crucial EEG signals and EEG data used by neurologists to guide diagnosis and care. Together, they support a better understanding of neurological and muscular health.

Key Differences Between EEG and EMG Machines

While both EEG and EMG machines monitor electrical signals, they differ in purpose, signal type, and application. EEG machines focus on brain activity and neurological disorders by detecting brain wave patterns using EEG electrodes placed on the scalp. This allows clinicians to identify abnormalities like seizures, brain injuries, or sleep disturbances. EEG recording is non-invasive and offers high temporal resolution, ideal for observing rapid changes in brain function.

EMG machines, by contrast, monitor muscle activity. They detect electrical impulses in response to nerve stimulation, helping identify conditions like carpal tunnel syndrome or muscular dystrophy. EMG involves inserting small electrodes into muscle tissue or applying surface electrodes, depending on the procedure.

While EEG systems are more relevant for conditions like epilepsy, EMG is tailored for assessing neuromuscular disorders.

Top Performance Features for EEG and EMG Systems

When choosing EEG or EMG systems, key features enhance accuracy and usability. For EEG machines, look for models with high channel counts to support multi-site EEG recording and detect complex brain wave patterns. Sleep EEG studies may also require long-duration capabilities and portable systems for overnight monitoring. Ambulatory EEG units are ideal for extended outpatient testing, giving flexibility and comfort to patients.

Advanced EEG systems should include user-friendly interfaces, real-time EEG data display, and software that supports artifact filtering and automated event marking. For EMG, essential features include multiple input channels, customizable stimulation settings, and integration with nerve conduction testing. Systems that synchronize with imaging or video provide additional value during detailed evaluations. Compatibility with cloud storage, remote access, and EMR systems improves diagnostic workflows and data sharing across departments.

Maintaining and Calibrating EEG / EMG Machines

Maintaining EEG and EMG machines is crucial for performance and patient safety. Routine calibration ensures accurate signal readings, especially vital for EEG tests detecting subtle brain wave patterns or EMG procedures measuring muscle responsiveness. Regular cleaning of EEG electrodes and cable checks helps reduce noise interference and extend equipment life.

It’s also important to follow manufacturer guidelines for software updates and data security, especially for units storing sensitive patient records. For sleep EEG and ambulatory EEG units, verify battery health, memory capacity, and proper charging cycles to avoid disruptions. Clinical teams should document all calibration efforts and schedule periodic inspections, ideally in partnership with biomedical technicians.

Preventive maintenance reduces equipment downtime, supports regulatory compliance, and protects the integrity of EEG signals and EMG recordings in fast-paced clinical practice.

Understanding Cost Implications

The cost of EEG and EMG machines varies widely based on capabilities, channel count, brand, and whether the equipment is new or refurbished. Entry-level EEG machines for routine EEG tests may start around $5,000–$10,000, while advanced EEG systems with long-term monitoring and video integration can exceed $25,000. Ambulatory EEG units also vary, depending on battery life, channel support, and wireless features.

EMG devices with nerve conduction capabilities and dual-mode support typically range from $10,000 to $30,000. Additional costs may include EEG electrodes, data management software, training, and servicing. Long-term value comes from selecting equipment suited to your clinical practice, with features that support your diagnostic volume.

Refurbished systems offer cost savings without sacrificing performance — a smart choice for clinics managing budgets while aiming to provide high-quality neurological care.

Frequently Asked Questions

What is better, MRI or EEG? +

MRI and EEG serve different diagnostic needs. EEG records real-time brain wave activity, making it ideal for detecting seizures, sleep disorders, or monitoring brain function in critical care. MRI offers detailed structural imaging of the brain, helping detect tumors, bleeding, or damage. The better option depends entirely on what condition or concern a clinician needs to investigate.

What does the EEG machine do? +

An EEG machine monitors and records the brain’s electrical activity through electrodes placed on the scalp. It captures EEG signals to detect brain wave abnormalities, aiding in diagnosing epilepsy, sleep disorders, and other neurological conditions. EEG systems help clinicians interpret brain function patterns, track progress, and adjust treatments, especially in settings involving brain injuries or medically induced coma cases.

How much does an EMG device cost? +

EMG machines can range from $10,000 to over $30,000, depending on features, channel count, and whether the system includes nerve conduction testing capabilities. Portable EMG units and refurbished systems tend to cost less, offering flexibility for smaller practices. Additional expenses may include accessories, software licensing, maintenance plans, and training.

What types of EMG machines do we offer? +

reLinkOnline offers a variety of EMG machines designed for both inpatient and outpatient clinical settings. Our inventory includes multi-channel systems, portable EMG units, and models with integrated nerve conduction studies. All new and refurbished EMG machines meet high standards for signal accuracy and reliability, making them a strong fit for neurologists and health care providers treating muscular or nerve-related disorders.

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From amplifiers to sleep systems to EMG machines, we have the new, used and refurbished medical devices your organization needs. Whether you need a wide range of used medical equipment or are looking for medical equipment for sale, browse our site now for a wide range of products and models from the world’s most trusted manufacturers, including Natus, Cadwell, Nihon Kohden, Philips Respironics, Viasys, Compumedics, and more.

Whether you need to upgrade equipment or find quality used EEG equipment for sale, shop reLink Medical now for one of the widest selections in the industry.