1. The electromagnetic radiation tester measures electric field and magnetic field radiation, providing accurate test results 2. Test and monitor electromagnetic radiation levels in indoor and outdoor environments 3. Built-in electromagnetic radiation sensor with microcontroller processing 4. LCD digital display shows radiation values 5. Helps manage or reduce exposure to electromagnetic radiation based on test results Parameters: Electric field measurement: Range: 1V/m - 1999V/m Alarm threshold: >40V/m Resolution: 1V/m Magnetic field measurement: Range: 0.01T - 99.99T Alarm threshold: >0.4T Resolution: 0.01T Temperature measurement: Range: -10°C to 70°C Display: 3-1/2 digit LCD Test bandwidth: 5Hz - 3500MHz Sampling time: approximately 0.4 seconds Operating temperature: 0°C to 50°C Operating humidity: below 80% relative humidity Operating voltage: DC 4.5V Power supply: AAA 1.5V * 3 pcs (not included) Weight: 125g EMF meter real-time measurement features: 1. Multi-function design detects electric field, magnetic field, and temperature simultaneously 2. o and visual alarm activates when safety threshold is exceeded 3. Data hold function locks the current radiation reading with one button 4. LCD displays radiation value trend graphically 5. Radiation assessment indicates whether current levels are within safe limits 6. Sleek design for comfortable one-handed operation, suitable for portable use Dimensions: 152 x 52 x 26.5mm Material: ABS Color: Black Package Contents: 1 x Radiation Dosimeter 1 x English manual Note: Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowance: +/- 1-3cm.