FNIRSI SFD-02 High Precision Indoor Air Quality Monitor Formaldehyde/TVOC/Temperature/Humidity Detector

Introduction:
- 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.

General Parameters:
- Screen material: 2.4-inch tempered glass touch HD color screen
- Backlight: Adjustable backlight brightness
- Power supply: TYPE-C (5V/2A)
- Battery: 1000mAh
- Language: Chinese, English
- Product size: Approximately 75 x 45 x 95 mm
- Bare weight: Approximately 193g

Formaldehyde Parameter:
- Range: 0 - 2000 PPM
- Detection Hardware: electrochemical sensor
- Preheat Time: 5 seconds

TVOC Parameter:
- Range: 0 - 10 mg/m³
- Detection hardware: semiconductor sensor
- Preheat time: 120 seconds

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

Package Included:
- 1 x HCHO Detector
- 1 x Data Cable
- 1 x User Manual