Introduction
The Roscoe Medical TENS Unit and EMS Muscle Stimulator is a versatile device designed to provide effective pain relief and support muscle rehabilitation. This manual provides essential information for the safe and proper operation of your device. Please read it thoroughly before use.
What's in the Box
Your Roscoe Medical TENS Unit and EMS Muscle Stimulator package includes the following components:
- Unit
- Lead wires
- Pads (electrodes)
- Battery (4 AA batteries required, included)
- Hard case
- User manual

Image: Complete kit including the TENS/EMS unit, electrodes, lead wires, battery, and carrying case.

Image: Detailed view of the kit contents, including the instruction manual and electrode packaging.
Product Overview
The Roscoe Medical TENS Unit and EMS Muscle Stimulator is a 4-channel device offering both Transcutaneous Electrical Nerve Stimulation (TENS) for pain relief and Electrical Muscle Stimulation (EMS) for muscle rehabilitation. It features a clear liquid crystal display and intuitive controls for easy operation.

Image: Front view of the device with its liquid crystal display and control buttons clearly labeled for user guidance.

Image: Infographic highlighting the dual TENS & EMS functionality, four channels, five customizable modes, and prescription-strength pain relief.
Setup
Battery Installation
The device requires 4 AA batteries (included). To install, open the battery compartment located on the back of the unit. Insert the batteries according to the polarity indicators (+/-) and close the compartment securely.

Image: The TENS/EMS unit with its battery compartment open, showing where to insert the AA batteries.
Electrode Connection
Connect the lead wires to the electrode pads. Each lead wire has two pins that connect to the two electrode pads. Then, plug the lead wires into the appropriate channels (CH1, CH2, CH3, CH4) on the top of the TENS/EMS unit.

Image: A pair of electrode pads connected to a lead wire, ready for attachment to the device and skin.
Operating Instructions
Power On/Off
Press the power button (usually marked with a circle and vertical line) to turn the device on or off. The LCD screen will illuminate when the device is powered on.
Mode Selection (TENS/EMS)
Use the 'MODE' button to cycle through the available TENS and EMS modes. The selected mode will be displayed on the LCD screen. Refer to the detailed manual for specific program descriptions for each mode.
Intensity Adjustment
Adjust the intensity for each channel using the dedicated intensity control buttons (up/down arrows) for CH1, CH2, CH3, and CH4. Start with a low intensity and gradually increase it until you feel a comfortable, yet effective, sensation.
Timer Setting
Set the treatment duration using the timer controls. The recommended treatment time varies depending on the condition and mode selected. Consult your healthcare professional for personalized recommendations.
Electrode Placement Guidelines
Proper electrode placement is crucial for effective treatment. Place the electrodes on clean, dry skin over or around the area of pain or muscle to be stimulated. Avoid placing electrodes over open wounds, irritated skin, or sensitive areas like the eyes or throat.

Image: Visual guide demonstrating recommended electrode placements for hand, neck, upper back, lower back, shoulder, elbow, knee, and calf pain.

Image: A man with electrodes on his lower back, demonstrating the device's built-in belt clip for convenient, hands-free use.

Image: A man using the portable TENS/EMS unit with electrodes on his shoulder while working on a laptop, illustrating its use in various settings.
Official Product Videos
Video: Roscoe 4-Channel TENS and EMS Unit For Pain Management. This video provides an overview of the unit's features and benefits for pain management.
Video: Roscoe Medical TENS Unit and EMS Muscle Stimulator Overview. A comprehensive overview of the product, its components, and how it functions.
Maintenance
Cleaning the Unit
Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or immerse the unit in water. Ensure the unit is completely dry before storage.
Electrode Care
After each use, place the electrodes back on their protective liner. Store them in a sealed bag to prevent drying out. Replace electrodes when they lose their adhesiveness or become damaged.
Storage
Store the unit and all accessories in the provided hard case in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if the device will not be used for an extended period.
Troubleshooting
If you encounter issues with your device, please refer to the following common troubleshooting tips:
- No sensation or weak sensation: Check battery levels, ensure lead wires are securely connected to both the unit and electrodes, and verify electrodes are firmly adhered to the skin. Increase intensity gradually.
- Electrodes not sticking: Clean skin thoroughly before application. Replace electrodes if they are old or have lost their adhesive quality.
- Device not turning on: Ensure batteries are correctly inserted and fully charged.
For persistent issues, please contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 10 x 2.5 x 7.6 inches; 1 Pounds |
| Item Model Number | DS5002-OTC |
| Department | Unisex-Adult |
| Batteries | 4 AA batteries required (included) |
| Manufacturer | Compass Health Brands |
Warranty and Support
Warranty Information
The Roscoe Medical TENS Unit and EMS Muscle Stimulator comes with a 1-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.

Image: Official 1 Year Warranty badge, indicating product coverage.
Customer Support
For any questions, technical assistance, or warranty inquiries, please contact Roscoe Medical customer support. Refer to the contact information provided on the product packaging or the official Roscoe Medical website.





