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 minimize exposure to electromagnetic radiation based on test results Parameters: Electric Field Measurement: Range: 1 V/m - 1999 V/m Alarm Threshold: 40 V/m Resolution: 1 V/m Magnetic Field Measurement: Range: 0.01 T - 99.99 T Alarm Threshold: 0.4 T Resolution: 0.01 T Temperature Measurement: Range: -10C to 70C Display: 3-1/2 digit LCD Test Bandwidth: 5 Hz - 3500 MHz Sampling Time: Approximately 0.4 seconds Operating Temperature: 0C to 50C Operating Humidity: Up to 80% relative humidity Operating Voltage: DC 4.5 V Power Supply: 3 x AAA 1.5 V batteries (not included) Weight: 125 g EMF Meter Real-Time Measurement Features: 1. Multi-functional design that detects electric field, magnetic field, radiation, and temperature simultaneously 2. Audible and visual alarm activates when safety thresholds are exceeded 3. Data hold function locks the radiation value with one button 4. LCD graph displays radiation value trends 5. Radiation assessment indicates whether current levels are within safe limits 6. Compact design allows one-handed operation, convenient 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 display differences may cause slight color variation between image and actual item. Measurement error allowance is +/- 1-3 cm.