SMART SENSOR AS8803 Portable H₂S Gas Detector – High-Accuracy Handheld Hydrogen Sulfide (H₂S) Monitor with Audible, Visual & Vibration Alarm

Product Description

Overview

The SMART SENSOR AS8803 is a professional-grade, handheld gas detector designed for accurate and reliable detection of Hydrogen Sulfide (H₂S) in industrial and safety-critical environments. As a dedicated single-gas detector, it serves as an ideal replacement for discontinued multi-gas models where focused H₂S monitoring is required.

Equipped with an advanced electrochemical sensor, the AS8803 continuously measures ambient H₂S concentration with fast response and stable performance. When gas levels exceed preset safety thresholds, the device immediately triggers audible, visual, and vibration alarms, providing timely warnings to help prevent accidents and ensure worker safety.

Compact, lightweight, and easy to operate, this portable H₂S gas detector is suitable for both routine inspections and continuous safety monitoring in confined or hazardous workspaces.

Key Features

• Dedicated detection of Hydrogen Sulfide (H₂S) gas

• High-precision electrochemical sensing technology

• Multi-alarm system: sound, flashing light, and vibration alerts

• Adjustable low and high concentration alarm thresholds

• Clear digital display with maximum value (MAX) hold

• Low battery warning for uninterrupted safety monitoring

• Long operating time – up to 60 hours under no-alarm conditions

• Compact, lightweight, and portable for industrial field use

Specifications

• Model: AS8803

• Gas Type: Hydrogen Sulfide (H₂S)

• Measurement Principle: Electrochemical

• Resolution: 1 ppm / 10 ppm

• Response Time: T90 ≤ 30 seconds

• Alarm Types: Audible, visual, and vibration alarms

• Alarm Settings: Adjustable low and high concentration alarms

• Maximum Value Display: Yes

• Low Power Alarm: Yes

• Operating Temperature: -10°C to 50°C (14°F to 122°F)

• Operating Humidity: 15%–95% RH (non-condensing)

• Power Supply: 3.7V rechargeable lithium-ion battery (built-in)

• Battery Operating Time: Up to 60 hours (no alarm condition)

• Dimensions: 90 × 65 × 30 mm

• Weight: Approx. 140 g

Applications

Suitable for H₂S monitoring in:

• Oil & gas facilities

• Chemical processing plants

• Mining and underground operations

• Firefighting and emergency response

• Industrial maintenance and confined spaces

Package Includes

• 1 × AS8803 Portable H₂S Gas Detector

• 1 × USB Charging Cable

• 1 × Protective Carrying Case

• 1 × User Manual (English)

Click here to download the manual.