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: 1V/m - 1999V/m Alarm threshold: Greater than 40V/m Resolution: 1V/m Magnetic field measurement: Range: 0.01T - 99.99T Alarm threshold: Greater than 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 * 3PCS (not included) Weight: 125g EMF meter real-time measurement features: 1. Multi-function device capable of detecting electric field, magnetic field, temperature simultaneously 2. Audible and visual alarm activates when threshold levels are exceeded 3. Data hold function allows locking of radiation readings 4. LCD displays radiation value trends graphically 5. Radiation assessment indicator provides safety status feedback 6. Compact design for one-handed operation, portable for on-site measurements Size: 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 variations in color between the image and actual product. Measurement error allowance is +/- 1-3cm.