FNIRSI SFD?02 4 in 1 Indoor Air Quality Monitor

Overview & Features

Real-time HCHO & TVOC Detection. HCHO range: 0–2000?ppm (electrochemical sensor). TVOC range: 0–10?mg/cubic meters (semiconductor sensor). Audible/visual alerts when thresholds exceeded; default thresholds: 0.08?mg/cubic meters for HCHO and 0.30?mg/cubic meters for TVOC. Comprehensive Air Quality Assessment. Displays formaldehyde safety in 5 grades. Includes temperature, humidity, and real-time clock display. Records past data for trend analysis. Calculates spatial averages across monitored spaces. Estimates remediation time, cost, and materials based on room size. 2.4-inch HD tempered-glass display with adjustable backlight. Compact and lightweight, 75×45×95?mm. Built-in 1000?mAh lithium battery delivers 8–10?h runtime. USB-C fast charging (5?V/2?A), fully charged in ~1.5?h. Supports operation while charging..

Technical Specifications