Guard-863Pro 4 Gas Monitor Multi Gas Detector for H₂S, CO, LEL, and O₂, with TFT Color Screen, Upgraded O₂ Sensor (5-Year Lifespan), 18h Battery Life, Explosion-Proof, Reliable for Work & Home-US

Professional 4-Gas Detection: Detects H₂S, CO, LEL, and O₂ with a fast 0.5s response time and triple alarm system (sound, light, vibration) for instant alerts.

Upgraded O₂ Sensor: Features a high-quality DDS (UK) oxygen sensor with a 5-year lifespan for long-term reliability.

TFT Color Display: Real-time gas readings, concentration matrix, and trend curves are shown clearly on a vibrant color screen, even in low light.

Efficient Power Use: Fully charges in 2.5 hours and runs for over 18 hours; includes a back clip for easy carrying.

Complete Package: Comes with the detector, user manual, charging cable, gas hood, and box; suitable for industrial, mining, agricultural, rescue, and home use.