Title

TOPTES

Guard-101 4 Gas Monitor

4-in-1 Rapid Gas Detection:

Simultaneously monitors H2S, CO, LEL, and O2 with up to 14 hours of continuous battery life for reliable, long-term environmental safety.

Rugged Triple-Proof Build:

Made from high-strength ABS engineering plastic that is waterproof, dustproof, and explosion-proof. Includes a heavy-duty back clip and password protection to prevent accidental resetting.

0.5s Response with Triple Alarms & Logging:

Triggers loud sound, bright LED, and vibration alerts within 0.5 seconds of gas exposure. Features built-in alarm record storage to easily review historical data.

Certified Professional Quality:

Tested and certified by internationally authorized bodies to ensure industry-standard accuracy and reliability in demanding work conditions.

What You Receive:

1× Guard-101 Gas Detector, 1× Charging Cable, 1× Standard Gas Hood, 1× User Manual, and 1× Packaging Box.

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  • 100% Secure Checkout

    Secure Payment Gateways Only

  • Warranty

    3-Year warranty policy

  • Fast Delivery

    Delivered in 3-5 business days

  • After-Sale Service

    24/7 support

A CLOSER LOOK

Explore Guard-101  4 Gas Monitor

Technical Specifications

Type of Gases

H2S, CO, LEL, O2

Warm-up Time

30 seconds

Alarm

LED Light, Vibration, Audible

Power Source

Battery Powered

Battery Life

Up to 14 Hours

Operating humidity

95%

Weight

0.6 kilograms

Certification

CE, UKCA, RoHS, FCC

User Manual

The Guard-101 comprises a housing, circuit board, battery, display screen, sensors, charger, and other components. Its operating principle involves electrochemical and catalytic combustion. Here are the detection ranges and settings for common gases:

  • LEL

  • O2

  • H2S

  • CO

Measurement Range:

Low Alarm Point:

High Alarm Point:

Resolution:

Indication Error:

Response Time:

(0-100) %LEL

20%LEL

50%LEL

1%LEL

±5%FS

≤30s

Measurement Range:

Low Alarm Point:

High Alarm Point:

Resolution:

Indication Error:

Response Time:

(0-30) %LEL

19.5%VOL

23.5%VOL

0.1%VOL

±5%FS

≤60s

Measurement Range:

Low Alarm Point:

High Alarm Point:

Resolution:

Indication Error:

Response Time:

(0-100) PPM

10 PPM

20 PPM

1 PPM

±10%RD

≤60s

Measurement Range:

Low Alarm Point:

High Alarm Point:

Resolution:

Indication Error:

Response Time:

(0-1000) PPM

50 PPM

200  PPM

1 PPM

±10%RD

≤60s

AS SEEN ON

View Expert Reviews 

Reviewed and endorsed by a former FBI Electronics Technician and active Fire Prevention Officer, the Guard-101 is a certified, rugged 4-gas monitor (H2S, CO, LEL, O2) featuring 0.5s rapid response, triple alarms, and data logging for maximum field safety.

Click to download Guard-101 Manual

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