The Omron E4 Tens is a massager designed to relieve pain and fatigue in muscles. It can be used to treat various parts of the body, such as shoulders, knees, elbows, soles of the feet, calves, and the lower back.
The manual begins with safety precautions and an overview of the device’s control functions, followed by detailed instructions on preparing the massager, inserting batteries, and attaching the Long Life pads. It explains how to select treatment programs, adjust settings such as intensity, hyper/soft modes, and treatment surface, and outlines the operation of each button.
Later sections cover end‑of‑treatment care, storage recommendations, troubleshooting, maintenance, and a full list of technical data including power supply, frequency range, dimensions, and accessories. Contact information for Omron’s European representatives is also provided.
| Battery life (continuous use) | Approx. 3 months (15 min/day) |
|---|---|
| Frequency generation | 1 to 1200 Hz |
| Power consumption | Approx. 85 mA |
| Operating temperature / humidity | 10 °C to 40 °C, 30 %–85 % RH |
| Storage temperature / humidity | -20 °C to 60 °C, 10 %–95 % RH |
| Dimensions (W × H × D) | 60 × 199 × 21 mm |
| Weight | Approx. 155 g (including batteries) |
The device provides twelve treatment programs.
It uses two identical 1.5 V alkaline AAA batteries (type AAA LRO3).
The frequency generation range is approximately 1 to 1200 Hz.
Battery life is about three months when used 15 minutes per day continuously.