High-Precision Solid Negative Ion Tester & Formaldehyde Gas Detector

Advanced Dual-Function Detection
Accurately measures both negative ion concentration (0–2 million pcs/cm³) and formaldehyde levels (0–10 ppm) with laboratory-grade precision. Ideal for indoor air quality monitoring in homes, offices, and laboratories.
Military-Grade Sensor & Instant Results
Equipped with a high-sensitivity semiconductor sensor for real-time, reliable readings. Features a rapid 10-second response time and auto-calibration for consistent accuracy.
Portable & User-Friendly Design
Ultra-lightweight (85g) aluminum alloy body with a sleek LCD display. Compact size (120 x 45 x 25mm) fits in pockets or toolkits for on-the-go testing.
Wide Application Scenarios
Perfect for testing air purifiers, HVAC systems, new furniture, and renovation projects. Ensures safety in nurseries, gyms, and commercial spaces.
Energy-Efficient & Durable
Low-power design with 100+ hours of continuous use. Reinforced ABS casing resists drops and scratches for long-term reliability.
Global Compliance & Certification
CE/FCC/RoHS certified. Supports multiple units (ppm, mg/m³) and includes a 24-month warranty for hassle-free bulk procurement.