SMART SENSOR AS8803 Portable Hydrogen Sulfide (H₂S) Gas Detector

The SMART SENSOR AS8803 is a compact and dependable portable gas detector engineered specifically for monitoring Hydrogen Sulfide (H₂S) in demanding industrial environments. Designed for professionals who require dedicated H₂S detection, this handheld device delivers accurate real-time readings to help maintain workplace safety and compliance.

Featuring a high-performance electrochemical sensor, the AS8803 continuously analyses surrounding air for the presence of Hydrogen Sulfide and responds rapidly to changing gas concentrations. When dangerous levels are detected, the detector instantly activates a powerful triple-alert system consisting of audible alarms, flashing visual indicators, and vibration warnings, ensuring users are alerted immediately even in noisy or low-visibility conditions.

Its lightweight design, long battery life, and simple operation make it an excellent choice for routine inspections, confined space entry, maintenance work, and emergency response situations.

Key Features

• Dedicated Hydrogen Sulfide (H₂S) gas monitoring
• Advanced electrochemical sensor for accurate and stable detection
• Triple alarm protection with sound, flashing light, and vibration alerts
• User-adjustable high and low alarm thresholds
• Digital display with maximum concentration memory function
• Low battery warning indicator
• Rechargeable lithium battery with extended operating time
• Compact and lightweight design for easy portability
• Fast response time for enhanced safety in hazardous environments

Technical Specifications

Model: AS8803
Target Gas: Hydrogen Sulfide (H₂S)
Sensor Type: Electrochemical
Resolution: 1 ppm / 10 ppm
Response Time: T90 ≤ 30 seconds
Alarm Modes: Audible, visual, and vibration alerts
Alarm Thresholds: Adjustable high and low settings
MAX Value Function: Yes
Low Battery Alert: Yes
Operating Temperature: -10°C to 50°C
Operating Humidity: 15%–95% RH (non-condensing)
Power Supply: Built-in 3.7V rechargeable lithium-ion battery
Battery Life: Up to 60 hours (without alarm activation)
Dimensions: 90 × 65 × 30 mm
Weight: Approximately 140g

Ideal Applications

The AS8803 is suitable for a wide range of industries and safety applications, including:

• Oil and gas operations
• Chemical manufacturing facilities
• Mining and tunnelling environments
• Wastewater treatment plants
• Fire and rescue services
• Industrial maintenance tasks
• Confined space monitoring
• Safety inspections and compliance checks

Package Contents

• 1 × SMART SENSOR AS8803 H₂S Gas Detector
• 1 × USB Charging Cable
• 1 × Protective Carry Case
• 1 × User Instruction Manual

• Free Shipping: We offer free delivery on all orders over €199 within the island of Ireland.
• Standard Shipping: Orders under €199 are subject to an €8.99 delivery charge.
• UK Shipping: starts at £6
• Europe Shipping: starts at €26
• Bulky Items: Please note that surcharges apply to bulky or palletised items, or products exceeding certain weight limits. Any applicable charge will be displayed at checkout.

Our aim is to deliver orders within 3-5 working days with many orders arriving with our customers sooner than this. We partner with DPD for shipping.

Please note: JFC products have a delivery lead time of up to 2 weeks.

During busy periods, delivery may take 4–5 working days. Additional delays should be expected before Christmas and during the Black Friday/Cyber Monday period and occasional sitewide sales.

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Click & Collect is available from Midleton depot during our opening hours below:

Monday: 08.30-17.30
Tuesday: 08.30-17.30
Wednesday: 08.30-17.30
Thursday: 08.30-17.30
Friday: 08.30-16:30
Saturday: 09:00-13:00
Sunday & Bank Holidays: closed

We are closed from 1–2pm.

You will receive an email confirmation when your order is ready for collection.

Please note: If a Click & Collect order is cancelled after it has been prepared and marked ready for collection, a 25% handling fee will be deducted from the refund.

Depot address: Country Farm Supplies, Sheanliss, Midleton, Cork, P25Y6K7‎

We have a 14-day return policy, which means you can return items within 14 days of the date your parcel was delivered. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. Read more here.

Please note: sale items cannot be returned or exchanged