Features: Prompt Alerts for Immediate Action: The device promptly warns users whenever the electric field surpasses the safety threshold (40V/m). This feature not only helps in immediate identification of hazardous zones but also in ensuring that one can quickly move from potentially harmful areas. Innovative Screen Design: With its color screen, the ET925PRO offers users a vivid and clear view of readings. The screen turning red upon exceeding safety limits provides an immediate visual cue about the environment's safety status. Sound and Light Warnings: Beyond the visual alerts, the tester also sounds an alarm. This dual-alert system, combining both sound and light, ensures that warnings are hard to miss, even in noisy or poorly-lit conditions. Intuitive Analog Bar Display: The analog bar feature facilitates a more intuitive observation of environmental radiation changes. Users can easily track and monitor fluctuations in radiation levels, ensuring they're always informed. Comprehensive Electromagnetic Radiation Testing: The ET925PRO provides a thorough analysis of electromagnetic radiation in your vicinity. Whether for professional use or personal safety, it's a must-have tool for comprehensive radiation assessment. Specifications: color: Black material: plastic Model: ET925PRO Device Type: Electromagnetic Radiation Tester Alarm Threshold: Electric field safety value at 40V/m Display: color screen with red alert display and analog bar for radiation level changes. Alerts: Sound and light alarms for exceeded safety levels. Package Contents: 1 x ET925PRO Radiation Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.