Noyafa JMS11 Digital Air Quality Tester TVOC HCHO Detector Meter Portable Sensor with Sound Alarm, LCD Display Monitor Lens Clearners Perfect for connecting a TV

Perfect for connecting a TV set

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Noyafa JMS11 Digital Air Quality Tester TVOC HCHO Detector Meter Portable Sensor with Sound Alarm, LCD Display Monitor Lens Clearners Perfect for connecting a TVOverview: HCHO (Formaldehyde) detection: Through the principle of semiconductor gas sensors. TVOC detection: Through the principle of semiconductor gas sensors. Sound and light alarm: The LED lights red, yellow, and green respectively represent: Poor, Normal, and Excellent. When the air quality is poor, the buzzer will alarm. Power reminder: By 3 LED lights to display the remaining powers. Certification. Passes RoHS, FCC, and CE compliance testing,