TopTes Guard-756 Oxygen Detector | 0-30% O2 Monitor with 0.5s Response & Alarms

Overview

The TopTes Guard-756 is a compact, rugged oxygen detector designed for work environments where ambient O2 levels matter. It uses a DDS sensor to deliver a rapid alert when oxygen is no longer within the preset threshold, with a detection range of 0-30% VOL.

Designed for real-world use, the device emphasizes responsiveness and reliability in a portable package.

By choosing the Guard-756, teams gain timely awareness of changing atmospheres, supporting attentive decision-making without overpromising outcomes.

Key benefits

• Very fast 0.5-second alert with high-resolution DDS sensing
• 0-30% VOL range enables monitoring of typical room to confined-space atmospheres
• Top-position sensor reduces airflow obstruction and hand contamination risk
• Triple alarms: LED light, vibration, and audible sound for clear notifications
• Real-time battery indicator and automatic low-battery alert at 10% for continuity

Performance and reliability

• Up to 7 days of operation on a single 2000mAh charge, with a full recharge in about 4 hours
• Back clip for hands-free portability; compact, waterproof, dustproof, and explosion-proof housing
• Top-level safety features include data logging of up to 999 records and top-mounted sensor design
• Factory calibrated and tested to international standards for consistent accuracy

What you get

• Guard-756 handheld oxygen gas detector
• Charging cable
• User manual
• Standard gas cover and packaging box

Real-world use cases

This device is suited for industrial sites, laboratories, mining operations, firefighting scenarios, and home safety setups where ambient O2 monitoring supports safer decisions.