FNIRSI SFD-02 4-IN-1 Formaldehyde Detector ($43.99)

Get the best deal online: $43.99 via Banggood. Updated: 28-12-2025.

FNIRSI SFD-02 4-IN-1 Formaldehyde Detector Indoor Air Quality Monitor Touchscreen HCHO TVOC Time Humidity Display Smart Alarm Type-C Charging for Home Office Test – White
Banggood warehouse: China.

Price: $43.99

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Aliexpress

There’re some similar (or not) items on Aliexpress

Image	Product (link)	Price
	FNIRSI SFD-02 Air Quality Monitor Tester Formaldehyde Detector with Real Time Monitoring Touchscreen Display Indoor Safety Meter	$52.11
	FNIRSI SFD-02 4-IN-1 Formaldehyde Detector Indoor Air Quality Monitor Touchscreen HCHO TVOC Time Humidity Display Smart Alarm	$61.49

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