Feature: 1. Dual Use: This detector can be used for two purposes, simultaneously detecting electric field and magnetic field radiation. 2. LCD Color Display: Comes with a color LCD display, this detector can display the radiation value trend graphically. 3. Alarm Function: This detector has a sound and light alarm, which is very sensitive, it will automatically alarm when exceeding the safety value. 4. One Key Data Lock: The detector features data locking and one key radiation value locking, which is more convenient for reading. 5. Portable: Comes with a small size and lightweight as well, you can easily take this detector with you to help with your work. It can be operated with one hand, which is very convenient! Specification: Item Type: Radiation Detector Material: ABS Battery: 1 x 3.7V 600mAh 103450 polymer lithium battery (Shipped with built in battery) Electric Field: Unit of Measurement: V/m Accuracy: 1V/m Range: 1 to 1999V/m Alarm Threshold: 40V/m Magnetic Field: Unit of Measurement: μT/mG Accuracy: 0.01μT/0.1mG Range: 0.01 to 99.99μT/0.1 to 999.9mG Alarm Threshold: 0.4μT/4mG Reading Display: 3-1/2 bit LCD Test Bandwidth: 5Hz to 3500MHz Sampling Time: About 0.4 seconds Test Mode: Dual mode simultaneous measurement Overload Prompt: LCD display range maximum Operating Temperature: 0℃ to 50℃ Operating Humidity: Relative humidity below 80% Working Voltage: 3.7V. Package List: 1 x Radiation Detector1 x Manual 1 x Charging Cable