1. Introduction and Product Overview
The iStim PR-13 Anal Probe is a premium, cylindrical, and slimline device designed for comfortable insertion and effective electrical muscle stimulation. It features a sliding end-stop, allowing users to adjust the depth of insertion for targeting the anal sphincter or deeper pelvic floor muscles. This probe is intended for use with an Incontinence EMS unit to assist in the relief of incontinence and to train sphincter muscles, enhancing resistance to fatigue and reducing involuntary bladder contractions.
The probe facilitates Kegel exercises, which are simple clench-and-release movements that strengthen the muscles supporting the uterus, bladder, and bowel. These exercises are beneficial for individuals experiencing urine leakage or bowel control issues. When connected to an Incontinence EMS stimulator, the iStim PR-13 probe enables automated Kegel exercises.
It addresses both stress incontinence, characterized by leakage during activities like sneezing or coughing, and urge incontinence, involving unexpected leakage due to an overactive bladder. The iStim PR-13 probe is a device designed to help reduce these common types of incontinence.

Image 1.1: Overview of the iStim PR-13 Anal Probe and its applications for pelvic floor health.
2. Important Safety Information and Warnings
Please read and understand all safety information before using the iStim PR-13 Anal Probe. Failure to follow these warnings may result in injury or adverse effects.
- Caution: Use with care in patients suspected of having heart disease.
- Do Not Use: During pregnancy.
- Do Not Use: If you have an implanted electrical device such as an insulin pump or pacemaker.
- Do Not Use: If you suffer from any muscle disorder.
- Do Not Use: If a bladder or vaginal infection is present.
- Do Not Use: If you have been diagnosed or treated for cervical cancer.
- Do Not Use: If you have, or have had, epilepsy.
- Keep the control unit dry and away from sources of heat.
- Keep this device out of the reach of children.
This product is approved for pain relief and does not require a prescription. It is a safe, all-natural, drug-free, and long-lasting solution for incontinence relief, certified with 510K approval for OTC use and safety regulations (IEC60601-1, IEC60601-1-2 EMC).
3. Package Contents
Upon opening the package, please verify that all the following items are included:
- iStim PR-13 Anal Probe x 1
- Quick Guide x 1
- Zip-Lock Carrying Bag x 1
Note: The package DOES NOT include an Incontinence EMS machine. The iStim PR-13 Anal Probe is designed to be used with a compatible EMS device.

Image 3.1: Contents of the iStim PR-13 Anal Probe package.
4. Product Features
- Premium Design: Cylindrical and slimline for comfortable insertion.
- Adjustable Depth: Features a sliding end-stop to adjust insertion depth for targeted stimulation of the anal sphincter or deeper pelvic floor.
- Integrated Cable: One-piece design with an integrally molded cable to prevent moisture ingress and ensure durability.
- Waterproof: iStim Probe body is IPX8 test-approved waterproof for easy cleaning.
- Compatibility: Designed to connect with most TENS/EMS devices using 2mm pigtail connectors.
- Therapeutic Benefits: Supports Kegel exercises, aids in recovery from childbirth and gynecological surgery, helps prevent rectal prolapse, strengthens pelvic floor muscles, and provides relief for stress and urge incontinence.
5. Setup Instructions
Follow these steps to set up your iStim PR-13 Anal Probe for use:
- Connect the Probe: Attach the probe to the lead wire. Ensure a secure connection. (Note: Lead wire is typically included with your TENS/EMS device, not the probe set.)
- Plug into EMS Device: Plug the lead wire into your iStim series EMS machine (e.g., iStim V2 or iStim EM-5200) or any compatible incontinence EMS machine. For optimal efficacy, it is recommended to use a machine with EMS function.
- Apply Lubricant: Before insertion, apply a water-based lubricant to the probe and the treatment area.
- Insert the Probe: Gently insert the probe into the anal opening. Adjust the sliding end-stop to achieve the desired depth for stimulation.

Image 5.1: Step-by-step guide for connecting and inserting the iStim PR-13 Anal Probe.
Compatible EMS Devices
For the best experience and results, we highly recommend connecting your iStim PR-13 Anal Probe with iStim V2 or iStim EM-5200 EMS machines.

iStim V2

iStim EM-5200
Image 5.2: Examples of compatible iStim EMS devices.
6. Operating Instructions
Once the iStim PR-13 Anal Probe is correctly connected to your EMS device and inserted, you can begin your therapy session. Refer to your specific EMS machine's instruction manual for detailed operating procedures, program selection, and intensity adjustments.
- Power On: Turn on your EMS device.
- Select Program: Choose the appropriate program for pelvic floor muscle stimulation or Kegel exercises as per your EMS device's instructions or your healthcare professional's recommendation.
- Adjust Intensity: Gradually increase the intensity of the stimulation to a comfortable yet effective level. You should feel a gentle contraction of the pelvic floor muscles. Avoid any discomfort or pain.
- Duration: Follow the recommended session duration as specified by your EMS device or healthcare provider.
- Power Off: After the session, turn off your EMS device before removing the probe.
The iStim PR-13 probe, when used with an EMS stimulator, initiates automatic Kegel exercises, helping to strengthen pelvic floor muscles and improve bladder control.
7. Maintenance and Cleaning
Proper cleaning and maintenance ensure the longevity and hygiene of your iStim PR-13 Anal Probe.
- Clean After Each Use: Always clean and dry the probe immediately after each use.
- Cleaning Method: The iStim Probe body is IPX8 test-approved waterproof and can be cleaned with mild soap and a damp cloth.
- Avoid Wetting Connections: Do not wet the connection part of the probe. Always remove the probe from the EMS device and lead wire before cleaning.
- Drying: Ensure the probe is completely dry before storing it.
- Storage: Store the probe in its provided zip-lock carrying bag in a clean, dry place, away from direct sunlight and extreme temperatures.

Image 7.1: Cleaning instructions for the iStim Anal Probe.
8. Troubleshooting
If you encounter any issues with your iStim PR-13 Anal Probe, please consider the following:
- No Stimulation: Ensure the probe is securely connected to the lead wire and the lead wire is properly plugged into the EMS device. Check if the EMS device is powered on and the program/intensity settings are correctly configured.
- Discomfort During Use: Reduce the intensity setting on your EMS device. Ensure sufficient water-based lubricant has been applied. If discomfort persists, discontinue use and consult a healthcare professional.
- Probe Damage: Inspect the probe for any visible damage. Do not use a damaged probe.
For further assistance, please refer to the troubleshooting section of your EMS device's manual or contact iSTIM customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | PR-13 |
| Length | 108 mm |
| Diameter | 19.6 mm (approx. 20 mm) |
| Material | ABS + Stainless Steel |
| Color | White + Silver |
| Connectivity | 2mm Pigtail Connectors |
| Water Resistance | IPX8 (probe body) |
| Certificates | ISO 13485, CE, FDA, ISO 10993 |
| Place of Origin | Taiwan |
| Package Dimensions | 8.54 x 7.56 x 1.14 inches; 2.89 ounces |

Image 9.1: Detailed dimensions of the iStim PR-13 Anal Probe.
10. Warranty and Support
For information regarding product warranty, please refer to the documentation provided with your purchase or visit the official iSTIM website. iSTIM products are manufactured with high-quality standards and are 510K approved for OTC use, ensuring safety and effectiveness.
If you require technical support, have questions about product usage, or need assistance with your iStim PR-13 Anal Probe, please contact iSTIM customer service through their official channels. You can find more information and contact details on the iSTIM Store on Amazon.