Gravity: SFA40 Formaldehyde (HCHO) Sensor (0–1000 ppb, High Accuracy ±20 ppb)

아마존 달러(USD) 가격을 각 날짜의 환율로 원화 환산해 표시합니다. 현재 환율 $1 = ₩1,467 (2026-07-28 기준)

상품 특징

• The Gravity: SFA40 HCHO Sensor is a high-precision electrochemical module designed to solve the biggest pain point in air quality monitoring: false alarms. Powered by the industry-leading Sensirion SFA40 chip, this formaldehyde detector specifically targets HCHO molecules while ignoring common household odors like alcohol or perfumes.
• Zero False Alarms: Anti-Interference Design.Standard sensors often spike simply because someone peeled an orange or used hand sanitizer. This electrochemical HCHO sensor solves this by utilizing advanced electrode materials with a cross-sensitivity to ethanol of less than 0.3%. It ensures that a rising reading indicates actual formaldehyde, not just a change in daily household scents.
• Laboratory-Grade Sensitivity (20 ppb): Detecting trace gases requires immense precision. The Gravity SFA40 module boasts a detection threshold of just 20 ppb. To put this in perspective, finding 20 ppb is equivalent to finding 20 grains of rice in 15,600 kilograms of rice. Whether you are tracking faint off-gassing from new furniture or conducting scientific research, this sensor captures minute changes that other devices miss.
• Integrated Environmental Compensation: To prevent data drift caused by heat or moisture, the SFA40 analysis board integrates a SHT4x sensor. This onboard coprocessor automatically calibrates the formaldehyde readings based on real-time temperature and humidity, ensuring consistency whether the device is in a damp basement or a dry office.

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