TopTes Guard-863Pro 4-Gas Monitor with TFT Screen, 5-Year O₂ Sensor, USB Data Export

Meet the TopTes Guard-863Pro, a rugged handheld 4-gas monitor designed for professionals who need clear, fast readings in demanding environments. It detects H₂S, CO, LEL, and O₂ with a rapid response and has undergone rigorous safety testing by an international certification body, underscoring reliability when it matters most.

Fast, four-gas sensing you can rely on

The Guard-863Pro continuously monitors four critical gases, delivering a quick 0.5-second response to rising concentrations. A continuous triple alarm system—sound, light, and vibration—keeps you alerted until gas levels return to safe limits, helping you decide on immediate action.

Long-lasting oxygen protection

Equipped with a high-quality oxygen sensor from DDS (UK), the oxygen channel benefits from a 5-year lifespan, reducing maintenance and replacement needs while maintaining dependable protection in tough work environments.

Bright display and easy data access

The vivid TFT color screen presents real-time gas concentrations, trend curves, and concentration matrices in a readable format even in challenging lighting. For deeper analysis, you can export alarm records, fault logs, calibration histories, and operation data via USB, making it easier to track conditions over time.

On-site endurance and mobility

A full charge in about 2.5 hours powers the device for more than 18 hours of continuous monitoring. A back-clip design adds carry convenience for hands-free use during site work, inspections, or emergency responses.

What you get and practical use cases

• Key benefits at a glance: four-gas detection, 0.5s response, triple alarms, 5-year O₂ sensor, TFT display, USB export, long battery life, and quick recharge.

• What you get: Guard-863Pro detector, packaging box, user manual, charging cable, and a standard gas hood.

• Common use cases: industrial manufacturing, mining, agriculture, emergency rescue, and home safety checks.

Designed for real-world workflows, the Guard-863Pro provides timely readings, durable sensors, and exportable data to support condition tracking and informed responses. While it enhances your monitoring capabilities, it does not promise specific outcomes or guarantees.