Feature: 1. 3 in 1 Tester: This EMF meter is capable of testing electric and magnetic fields as well as temperature, meeting your various work needs. 2. Smart Alarming: When the radiation in the current environment gets to the preset alarm value, the detector will give an audible alarm to protecting your safety. 3. Wide Test Range: Comes with a wide measurement range and high accuracy, the magnetic field detector enables clear display and dual mode simultaneous test. 4. Practical Use: Mainly used for testing TV, computers, printers, microwave ovens, refrigerators, mobile phone towers, low frequency household appliances, etc. 5. Easy Carrying: Light in weight and compact in size as well, the magnetic field detector allows for easy carrying and operation. Specification: Item Type: EMF Meter Battery: 2 x AA battery, shipped without battery. Electric Field Measurement Unit: V/m Electric Field Measurement Accuracy: 1V/m Electric Field Measurement Range: 1V/m-9999V/m Magnetic Field Measurement Unit: μT Magnetic Field Measurement Accuracy: 0.01 μT Magnetic Field Measurement Range: 0.01μT - 99.99μT Temperature Measurement Unit: ℃/℉ Temperature Measurement Accuracy: 0.1 ℃/℉ Temperature Measurement Range: - 10 ℃~70 ℃ Alarm Threshold: 40V/m, 0.7 μT Display Screen: 3-1/2 bit LCD Test Bandwidth: 5Hz-3500Hz Sampling Time: About 0.4 Seconds Test Mode: Dual Mode Simultaneous Test. Package List: 1 x EMF Meter