NOYAFA NF-602 Handheld Radiation Detector Geiger Counter Meter Electromagnetic Radiation Tester Dosimeter Multifunctional Electric Field Magnetic Field Radiation Detector with Sound and Light Alarm Features: TWO USES: One instrument for two purposes. The electric field and magnetic field are measured simultaneously. µT for testing magnetic field radiation, V/m for testing electric field. This EMF meter can not test the RF value. PRECISE MEASUREMENT: Built-in high-precision electromagnetic radiation sensor, micro-control chip processor, can quickly and accurately measure electromagnetic radiation value. AUTO ALARM: Sound-light alarm, When the electric field value exceeds 40V/m, and the magnetic field exceeds 0.4µT, the instrument will alarm automatically. Power Supply: Built-in 700mah high-performance lithium battery. USB direct charging, convenient and . The high-definition large-screen display reads more intuitively and clearly, at a glance. WIDELY APPLICATIONS: Mainly used for testing routers, bt, radio equipment, TVs, computers, printers, microwave ovens refrigerators, cell phone towers, for low frequency household appliances. Specifications: Electric Field Measurement Range: 1~1999V/m Accuracy: 1V/m Alarm Threshold: 40V/m Magnetic Field Measurement Range: 0.01~ 99.99µT Accuracy: 0.01µT Alarm Threshold: 0.4µT Test Frequency: 5Hz~3500MHz Test Mode: Dual-mode simulyaneous measurement Sampling Time: <0.5s Display Value: peak value Display Screen: LED Backlight: √ Power Supply: Built in 3.7V 700mAh lithium battery Charging Port: Type-C Operating Temperature: 0~50℃ Material: ABS Item Size: 11 * 5.5 * 2.5 cm / 4.33 * 2.16 * 0.98 inch Package Size: 14.5 * 10.5 * 4.5 cm / 5.71 * 4.13 * 1.77 inch Package Weight: 185g / 6.52oz Package List: 1 * Electromagnetic Radiation Detector 1 * Charging Cable 1 * User Manual (English)