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FNIRSI SFD-02 4-IN-1 Indoor Air Quality Monitor Touchscreen


FNIRSI SFD-02 Formaldehyde & Air Quality Monitor

The FNIRSI SFD-02 is a smart indoor air quality tester, designed to monitor formaldehyde (HCHO) and TVOC levels in real time. Ideal for homes and offices, it provides accurate, easy-to-read data and intelligent features to help keep your environment safe and healthy.

Key Features:

  • Real-Time Monitoring
    Instantly displays formaldehyde, TVOC, humidity, and time — know your air quality at a glance.

  • Air Quality Assessment
    Evaluates formaldehyde levels and alerts you to potential health risks.

  • Historical Data Recording
    Tracks changes in HCHO and TVOC over time for better long-term air quality management.

  • Spatial Averaging
    Calculates average values of HCHO and TVOC across the space for more accurate assessment.

  • Smart Removal Calculator
    Estimates time, cost, and materials needed to remove formaldehyde based on your room size and method.

  • Customizable Alarms
    Set your own alert thresholds — the device will warn you when levels are too high.

  • Calendar & Time Display
    Conveniently shows date, time, and humidity on screen.

With its intelligent design and accurate detection, the SFD-02 is your all-in-one solution for managing indoor air quality — making your home or office healthier and safer.



1. Model Parameters

◉ Screen Material: 2.4-inch tempered glass touch HD color screen
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Backlight: Adjustable backlight brightness
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Power Supply: TYPE-C (5V/2A)
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Battery: 1000mAh
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Language: Chinese, English
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Product Size: Approximately 75 × 45 × 95 mm
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Bare Weight: Approximately 193g


2. Technical Parameters

(1) Formaldehyde Parameter
◉ Range: 0 - 2000 PPM
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Detection Hardware: Electrochemical sensor
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Preheat Time: 5 seconds

(2) TVOC Parameter
◉ Range: 0 - 10 mg/m³
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Detection Hardware: Semiconductor sensor
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Preheat Time: 120 seconds


3. Formaldehyde Level Classification

◉ Excellent: 0 mg/m³ - 0.08 mg/m³
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Good: 0.08 mg/m³ - 0.1 mg/m³
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Mild Pollution: 0.1 mg/m³ - 0.2 mg/m³
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Moderate Pollution: 0.2 mg/m³ - 0.3 mg/m³
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Severe Pollution: 0.3 mg/m³ and above



◉ SFD-02 Device × 1
◉ Packing Box × 1
◉ User Manual × 1

◉ Data Cable × 1

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