This manual describes the TES-1390 electromagnetic field (EMF) tester, a hand‑held instrument for measuring EMF radiation from power lines, appliances, and other devices. It includes safety cautions, application examples, and detailed operating procedures.
The document lists technical specifications, part locations, battery replacement instructions, and recommendations for regular field monitoring to minimize long‑term exposure.
| Number of Axis | Single axis |
|---|---|
| Band Width | 30 Hz to 300 Hz |
| Accuracy | ±(3%+3d) at 50 Hz or 60 Hz |
| Battery Life | Approx. 60 hours |
| Operating Temperature | 0 °C to 40 °C (below 80 % RH) |
| Weight | Approx. 165 g |
Replace the batteries when the LCD display shows “ca”, indicating the battery voltage has dropped below 4.0 V‑4.5 V.
The tester measures 200‑2000 milli Gauss and 20‑200 micro Tesla.
Press the power button, select the desired range (Gauss or Tesla) using the range selector, and the device is ready to take a measurement.