Readable LED indicators in all lighting conditions: easy to read both in darkness and in bright sunlight. Portable, easy to use, reliable and responsive: designed for on‑the‑go measurements with quick, clear feedback. Special function: a 5‑LED indicator light represents different radiation values, enabling ataglance assessment. dark green: 0 to 1.5 mgauss green: 1.5 to 2.5 mgauss yellow: 2.5 to 10 mgauss orange: 10 to 20 mgauss red: 20+ mgauss 50/60 Hz frequency monitoring: compatible with typical mains environments to ensure readings are relevant where electrical power is present. Practical and versatile: suitable for quick checks around electrical equipment, wiring, and areas with potential EMF exposure. Use scenarios: Home or office electrical inspections near panels, outlets, and powered devices to identify elevated EMF levels. Office workstation assessments to monitor exposure during normal operation of computers, servers, and networking equipment. Field service and installation work where mains frequency is present and rapid, colorcoded readings help guide decisions.