1. The electromagnetic radiation tester measures electric field and magnetic field radiation, providing accurate test results. 2. Test and evaluate electromagnetic radiation levels in indoor and outdoor environments. 3. The device features a built-in electromagnetic radiation sensor processed by a micro-control chip. 4. LCD digital display shows radiation values. 5. Use test results to manage or minimize exposure to electromagnetic radiation. Parameters: Electric Field Measurement: Range: 1 V/m - 1999 V/m Alarm Threshold: Greater than 40 V/m Resolution: 1 V/m Magnetic Field Measurement: Range: 0.01 μT - 99.99 μT Alarm Threshold: Greater than 0.4 μT Resolution: 0.01 μT Temperature Measurement: Range: -10°C to 70°C Display: 3-1/2 digit LCD Test Bandwidth: 5 Hz - 3500 MHz Sampling Time: Approximately 0.4 seconds Operating Temperature: 0°C to 50°C Operating Humidity: Below 80% relative humidity Operating Voltage: DC 4.5 V Power Supply: AAA 1.5V * 3 pcs (not included) Weight: 125 g EMF Meter Real-Time Measurement Features: 1. Multi-function design capable of detecting electric field, magnetic field, temperature, and radiation. 2. Sound and light alarm activates when safety threshold is exceeded. 3. Data hold function allows locking of radiation value with one button. 4. LCD displays radiation value trend graphically. 5. Radiation assessment feature indicates whether current radiation levels are within safe limits. 6. Sleek design for comfortable one-handed operation, ideal for portable use or site measurements. Dimensions: 152 x 52 x 26.5 mm Material: ABS Color: Black Package Contents: 1 x Radiation Dosimeter 1 x English Manual Note: Light reflection and differences in display settings may affect the appearance of the product. Only the items listed are included.