The SPR-703 is a portable, pump-type multi-gas detector designed to continuously monitor combustible gases, oxygen, carbon monoxide, hydrogen sulfide, and other toxic gases in ambient air. It can detect up to five gases simultaneously, making it ideal for use in harsh environments due to its waterproof design and rubberized housing. The device utilizes high-quality sensors and an embedded microcomputer for reliable, accurate readings and offers intuitive operation through a graphic and text LCD display.