Description
Reliable H₂S Detection for Hazardous Work Environments
The HS-04 Hydrogen Sulfide (H₂S) Single Gas Monitor is a compact, durable, and field-serviceable device designed for professionals working in high-risk environments. Ideal for industries requiring continuous gas monitoring, this device offers long-lasting performance and dependable safety alerts for hydrogen sulfide exposure.
Key Features
- Continuous operation for over 9,000 hours on two AAA alkaline batteries
- Field replaceable sensors and filters for extended product life
- Compact and lightweight: 2.1” (W) x 2.6” (H) x 0.9” (D), only 2.8 ounces
- Impact, dust, and water resistant (IP-67 rated)
- Replaceable rubber boot for added protection
- 360° rotating alligator clip for secure attachment
- Triple alarm system: audible, visual, and vibration alerts
- Automatic backlight for low-light conditions
- Intrinsically safe with ATEX, IECEx, and C/US certifications
- Compatible with GX-3R, GX-3R Pro, and GasWatch 3 sensors
Why It Matters
Whether you’re in oil and gas, mining, or wastewater treatment, the HS-04 ensures your safety by providing real-time alerts to hydrogen sulfide exposure. Its rugged design and long battery life mean fewer interruptions and more peace of mind. With easy sensor replacement, you save time and reduce costs—keeping your team protected without hassle.
Specifications & Technical Details
- Gas Type: Hydrogen Sulfide (H₂S)
- Detection Range: 0–200 ppm
- Battery: 2 x AAA alkaline (up to 9,000 hours)
- Size: 2.1” (W) x 2.6” (H) x 0.9” (D)
- Weight: 2.8 oz (approx. 80 g)
- Ingress Protection: IP-67 (dust and water resistant)
- Certifications:
- ATEX / IECEx Intrinsically Safe
- QPS Certified for Class I, Division 1, Groups A, B, C, D
- Compatibility: GX-3R, GX-3R Pro, GasWatch 3
- Sensor Life: Over 3 years
- Alarm Types: Audible, visual, vibration
- Boot: Replaceable rubber boot
How to Use
- Insert two AAA alkaline batteries.
- Clip the monitor securely using the 360° rotating alligator clip.
- Power on the device and ensure the backlight activates.
- Monitor the display for H₂S levels and respond to alarms as needed.
- Replace sensors and filters as required—no tools needed.
Customer Reviews
Thabo M. – “Reliable and easy to use. I’ve had mine for over a year and it’s still going strong. The alarms are loud and clear.”
Karen D. – “Perfect for our wastewater team. The battery life is impressive and the clip makes it easy to wear all day.”
Johan V. – “We use these in our refinery. The field-replaceable sensors save us a lot of time and money.”
Frequently Asked Questions
Q1: Does the HS-04 require calibration?
A: Yes, periodic calibration is recommended for accuracy. Follow your company’s safety protocols.
Q2: Is training required to operate the HS-04?
A: Basic training is advised, but the device is user-friendly and intuitive.
Q3: Can I use this monitor in confined spaces?
A: Yes, it’s designed for hazardous environments including confined spaces.
Q4: Are the sensors interchangeable with other RKI models?
A: Yes, they are compatible with GX-3R, GX-3R Pro, and GasWatch 3.
Q5: What happens when the battery runs out?
A: Simply replace the two AAA alkaline batteries—no tools required.
Q6: Is the rubber boot necessary?
A: It adds extra protection and is replaceable if damaged.
Protect Your Team with Trusted H₂S Monitoring
Don’t compromise on safety. The HS-04 is built to last, easy to maintain, and trusted across industries. Add it to your cart today and ensure your team is protected—wherever the job takes them.
Industries & Workplace Applications
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- Oil & Gas
- Mining
- Wastewater Treatment
- Chemical Manufacturing
- Agriculture
- Construction
- Emergency Services
- Utilities
- Food Processing
- Environmental Services
