Mini Electromagnetic Radiation Detector High Sensitive Pen Type EMF Meter for Measuring Electric and Magnetic Field Intensity Non-Contact EMF Tester for Detecting Electromagnetic Waves from Household Appliances Features: - Measures electric field intensity, magnetic field intensity, and radiation levels quickly and reliably - Equipped with sound and light alarm when radiation levels exceed standard thresholds - Constructed with a plastic case and metal electronic core for durability and accurate readings - Inductive, non-contact design responds sensitively to electromagnetic fields generated by common devices such as computers, TVs, refrigerators, air conditioners, and rice cookers - Ideal for assessing electromagnetic field exposure in home environments, computer rooms, and control rooms Specifications: - Material: PP - Frequency Range: 50–500 Hz - Operating Temperature: 32–122°F (0–50°C) - Alarm Mode: Sound and light - Power Supply: 2 x 1.5V AAA batteries (not included) - Item Size: 148 x 25 x 20mm / 5.83 x 0.98 x 0.79in - Item Weight: 50g / 1.76oz - Package Weight: 65g / 2.29oz - Package Size: 16 x 3.5 x 3cm / 6.30 x 1.38 x 1.18in Packing List: 1 x Digital EMF Tester