FNIRSI ERD-10 — Electromagnetic Radiation Detector (EF/MF/RF + Temp)

Measure the invisible fields around you with the FNIRSI ERD-10, a handheld electromagnetic radiation detector that reads electric field (EF), magnetic field (MF), and radio frequency (RF) intensity in real time, plus ambient temperature.

• Measurement range: 0.01–99.99 µT (magnetic field)
• Backlit color TFT display with switchable white/black display modes
• Three alarm types (sound/light/vibration thresholds) for EF, MF, and RF
• Live curve/graph mode for tracking radiation trends over time
• Data hold function and auto power-off to save battery
• Built-in 1000mAh rechargeable battery, USB Type-C charging
• Compact, rugged housing — 143 × 68 × 29 mm

Useful for checking EMF levels around household appliances, wiring, electronics, and routers — a hands-on way to explore real electromagnetic field physics at home.