Feature: 1. The tester is used to measure the field strength and electric field strength of household appliances such as television. 2. Wide range of application, this radiation tester is suitable for pregnant mother, ordinary family, electrical company, etc. 3. This tester is used for electromagnetic and electric field radiation detection, easy to carry and convenient to measure. 4. Easy to operate, with high sensitivity sensor, it effectively guarantees the accuracy of testing result, reliable to use. 5. Audible alarm indicator, low battery indicator, data hold indicator and automatic shut-down function, more practical to use. Specification: Condition: 100% Brand New Item Type: Electromagnetic Field Tester Material: ABS Applicable Scene: Pregnant mother, ordinary family, electrical company, etc. 1. Ambient Temperature Display Area 2. Temperature Unit 3. Maximum Indicator 4. Audible Alarm Indicator 5. Data Hold Indicator 6. Low Battery Indicator 7. Electric Field Strength Unit 8. Unit of Electromagnetic Field Strength 9. Measurement Value Display Area Electromagnetic Field Strength Measurement: Range: 0.1-199.9mG, 0.01-19.99T Resolution: 0.1mG/0.01T Alarm Threshold: >4.0mG, >0.1T Electric Field Strength Measurement: Range: 1-1999V/M Resolution: 1V/M Alarm Threshold: >40V/M Ambient Temperature Measurement: Range: 0-50, 32-122 Resolution: 1/ Alarm Threshold: 1.5/3 Frequency Range: 5Hz-3500MHz Automatic Shut-down: 10 Minutes of Inactivity Low Battery Icon:<6.8V Operating Temperature: 0-40/32-104, 45%-80%RH Power Source: 1 x 9V 6F22 Battery (Not Included) Package List: 1 x Electromagnetic Field Tester (Battery Not Included) 1 x Black Bag 1 x English User Manuala