Description
World’s Smallest 5-Gas Detector – Built for Safety in Confined Spaces
The GX-3R Pro by RKI Instruments is a compact, rugged, and intelligent gas detector designed for professionals working in confined spaces, industrial sites, and hazardous environments. Weighing just 4.58 oz, it fits in the palm of your hand and delivers real-time monitoring of up to five gases with advanced safety features and wireless connectivity.
Key Features
- Simultaneous Detection: Monitors LEL, O₂, CO, H₂S, and a 5th toxic or infrared gas (e.g., HCN, NO₂, SO₂, NH₃, PH₃, CO₂).
- Bluetooth Wireless Communication: Syncs with iOS and Android apps for live data and alerts.
- Man-Down & Panic Alarms: Alerts for immobility or emergency situations.
- Auto-Rotation Display: Full dot LCD with backlight adjusts to viewing angle.
- Interchangeable Sensors: Two of four sensor slots allow field reconfiguration.
- Compact & Lightweight: Only 2.9” W x 2.6” H x 1.06” D and 4.58 oz.
- Durable & Waterproof: IP66/68 rated; drop-tested to 23 ft.
- Rechargeable Battery: Lithium-ion battery lasts up to 25 hours; charges in 3 hours.
- Non-Compliance Indicator: LED alerts for missed bump tests, overdue calibration, or alarm events.
Why It Works for You
The GX-3R Pro is more than a gas detector—it’s a life-saving companion. Whether you’re entering confined spaces or working in volatile environments, this device keeps you informed, connected, and protected. Its compact size ensures comfort, while its smart features help you stay compliant and respond quickly to danger.
Specifications & Technical Details
- Dimensions: 2.9” W x 2.6” H x 1.06” D (73 x 65 x 26 mm)
- Weight: 4.58 oz (130 g)
- Battery: Rechargeable Li-Ion (25 hrs runtime, 3 hrs full charge)
- Sensor Slots:
- Slot 1: CO & H₂S (interchangeable)
- Slot 2: Combustibles (LEL)
- Slot 3: Oxygen (O₂)
- Slot 4: Toxic/IR (HCN, NO₂, SO₂, NH₃, PH₃, CO₂)
- Sampling Method: Diffusion (optional pump available)
- Display: Auto-backlit LCD with auto-rotation
- Alarms: 3 adjustable levels, STEL, TWA, overscale, vibration, buzzer (100 dB @ 30 cm)
- Environmental Range: -20°C to +50°C; 10–90% RH (non-condensing)
- Compliance: IP66/68 rated; drop-tested to 23 ft; meets industrial gas detection standards
How to Use
- Charge the device using the included 100–240 VAC charger.
- Power on and allow sensors to stabilize.
- Clip to clothing or gear using the alligator clip.
- Monitor readings via the display or mobile app.
- Respond to alarms and follow safety protocols.
Device Size Reference
| Measurement | Value |
|---|---|
| Width | 2.9” (73 mm) |
| Height | 2.6” (65 mm) |
| Depth | 1.06” (26 mm) |
| Weight | 4.58 oz (130 g) |
Note: This is a device size chart. No wearable sizing required.
Customer Reviews
Andre D.
“Compact and powerful. The Bluetooth alerts helped us respond instantly during a leak.”
Megan T.
“Easy to use and reliable. The man-down alarm gives peace of mind for solo workers.”
Ruan V.
“We’ve deployed these across multiple sites. The sensor flexibility and rugged build are excellent.”
Frequently Asked Questions
Q: Is this suitable for confined space entry?
A: Yes, it’s designed specifically for confined space gas detection.
Q: Does it require calibration?
A: Yes, and the device alerts you when calibration is due.
Q: Can I monitor readings remotely?
A: Yes, via Bluetooth and the free mobile app for iOS and Android.
Q: What gases can the 5th sensor detect?
A: Options include HCN, NO₂, SO₂, NH₃, PH₃, and CO₂.
Q: Is it water-resistant?
A: Yes, it’s IP66/68 rated and drop-tested to 23 ft.
Q: How long does the battery last?
A: Up to 25 hours on a full charge.
Equip Your Team with Smart Safety
Don’t compromise on safety. The GX-3R Pro offers unmatched protection in a compact design. Order now and empower your team with real-time gas detection and smart alerts.
Industries & Workplace Applications
- Oil & Gas
- Mining
- Chemical Processing
- Utilities
- Emergency Services
- Construction
- Wastewater Treatment
- Manufacturing
- Maritime
- Confined Space Entry
