
Hcho Pump Portable Formaldehyde Gas Tester Detector Test Meter. Lifelong After-Sales Service: Provides lifetime support for all mechanical and functional issues. 1-Year Warranty Coverage: Covers manufacturing defects for a full year from the date of purchase. CE Certification: Meets European safety, health, and environmental protection standards. IP66 Protection Rating: Fully dustproof and protected against powerful water jets. Adjustable Pump Suction: Features 10 adjustable gear levels for precise sampling control. Multi-Range Measurement: Supports ranges from 0-1ppm up to 0-1000ppm for versatile detection. Dual Language Interface: Operates seamlessly in both Chinese and English for global users. Long Battery Life: Equipped with large capacity lithium polymer battery for 100 hours operation.