Description
Compact Safety – The World’s Smallest 4-Gas Detector for Personal Protection
The GX-3R Gas Detector by RKI Instruments is designed for professionals who need reliable, real-time gas detection in confined spaces or hazardous environments. Weighing just 3.52 ounces, it’s the smallest 4-gas monitor available—perfect for clipping within the breathing zone as defined by OSHA. Ideal for safety officers, industrial workers, and confined space teams.
Key Features
- Simultaneous Detection of 4 Gases
Monitors LEL (combustibles), O₂, H₂S, and CO (with optional hydrogen compensation). - Ultra-Compact & Lightweight
Dimensions: 2.2” W x 2.55” H x 1.02” D. Weight: 3.52 oz (100 g). - Advanced Micro Sensors
New generation sensors with enhanced resistance to silicone poisoning and extended lifespan. - Non-Compliance Indicator
Flashes 3 LED lights every 30 seconds if bump test, calibration, or alarm event is overdue. - Durable & Weatherproof
IP66/68 rated for dust and water resistance. Drop-tested from 23 ft. - Long Battery Life
Rechargeable Li-Ion battery with up to 25 hours of operation per charge. - Simple Operation
Easy 2-button interface with audible, visual, and vibration alarms.
Why It Matters
The GX-3R empowers workers to stay safe without sacrificing comfort or mobility. Its compact size means it can be worn continuously in the breathing zone, ensuring accurate exposure monitoring. Supervisors gain peace of mind with built-in compliance alerts, while workers benefit from lightweight, unobtrusive protection.
Specifications & Technical Details
- Gases Monitored: LEL, O₂, CO (H₂ compensated optional), H₂S
- Sensor Type: Micro sensors; combo sensor for CO & H₂S
- Battery: Rechargeable Li-Ion, 25-hour runtime, 3-hour full charge
- Display: Digital LCD with icons
- Alarms: 3 adjustable levels, STEL, TWA, overscale, trouble alarms
- Environmental Range:
- Continuous: -20°C to +50°C, 10–90% RH
- Temporary: -40°C to +60°C, 0–95% RH
- Size: 2.2” W x 2.55” H x 1.02” D (58 x 65 x 26 mm)
- Weight: 3.52 oz (100 g)
- Compliance: OSHA breathing zone standards; IP66/68 rated
- Accessories Included: Alligator clip, charger, calibration adapter, rubber boot
How to Use
- Charge the device using the included 100–240 VAC charger.
- Clip the monitor to your collar or lapel within the breathing zone.
- Power on and ensure sensors are active.
- Monitor gas levels via the LCD display.
- Respond to alarms as needed and perform bump tests regularly.
Size Reference Table (Device Dimensions)
| Measurement | Value |
|---|---|
| Width | 2.2” (5.8 cm) |
| Height | 2.55” (6.5 cm) |
| Depth | 1.02” (2.6 cm) |
| Weight | 3.52 oz (100 g) |
Note: Device size is optimized for breathing zone placement.
Customer Testimonials
Derek M.
“Finally, a gas detector that doesn’t weigh me down. I wear it all day and barely notice it.”
Kaitlynne D.
“As a safety officer, the compliance alerts are a game changer. I know instantly when something needs attention.”
Johan V.
“Reliable, compact, and easy to use. We’ve equipped our entire confined space team with GX-3Rs.”
Frequently Asked Questions
Q: Can the GX-3R be used in confined spaces?
A: Yes, it’s specifically designed for confined space monitoring and meets OSHA breathing zone standards.
Q: How often should I calibrate the device?
A: Calibration frequency depends on usage, but the device will alert you when calibration is due.
Q: Is the battery replaceable?
A: The Li-Ion battery is rechargeable but not user-replaceable. It offers up to 25 hours of runtime.
Q: What happens if a sensor fails?
A: The LEL sensor has dual filaments—if one fails, the other takes over. Other sensors are field-replaceable.
Q: Can I download data from the device?
A: Yes, with the optional USB to IrDA cable, you can access calibration and alarm logs.
Q: Is the device waterproof?
A: It is rated IP66/68, meaning it’s dust-tight and water-resistant up to 2 meters for 1 hour.
Protect Your Team with Precision
Equip your workforce with the GX-3R and ensure accurate, real-time gas detection in the most critical environments. Order now and experience the next generation of safety monitoring.
Industries & Workplace Applications
- Confined Space Entry
- Oil & Gas
- Mining
- Utilities
- Chemical Processing
- Wastewater Treatment
- Emergency Response
- Construction
- Manufacturing
- Environmental Monitoring
