Noyafa JMS11 Digital Air Quality Tester TVOC HCHO Detector Meter Portable Sensor with Sound Alarm, LCD Display Monitor Lens Clearners Pearl's original light weight Convertible

Pearl's original light weight Convertible Flat Based cymbal boom stand is packed with features for the gigging pro

iClever wired headphones work with the In-line microphone making them perfect for Online Courses and Voice calls

Battery: 2 x AA Alkaline

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Noyafa JMS11 Digital Air Quality Tester TVOC HCHO Detector Meter Portable Sensor with Sound Alarm, LCD Display Monitor Lens Clearners Pearl's original light weight ConvertibleOverview: 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,