When it comes to ensuring safety in hazardous environments, the 04 Series single gas monitor stands out as a trusted and durable solution. Designed for continuous operation for up to an impressive 9,000 hours using just two AAA alkaline batteries (model-dependent), this compact device is a dependable ally in safeguarding lives and property.
Key Benefits:
What sets the 04 Series apart is its cost-effective, field-replaceable sensors and filters. These components can be easily swapped, ensuring minimal downtime and cost savings. Notably, these sensors are compatible with other popular RKI instruments such as the GX-3R, GX-3R Pro, and GasWatch 3. With a sensor lifespan exceeding 3 years and backed by a 3-year warranty*, reliability is assured, giving you peace of mind.
Additionally, the 04 Series is built to withstand the harshest conditions. It’s tough enough to handle impacts, dust, and water, boasting an impressive IP-67 ingress protection rating. Moreover, it is certified as intrinsically safe according to ATEX/IECEx standards and holds QPS certification for U.S. and Canadian standards for Class I, Division 1, Groups A, B, C, and D atmospheres.
Standard Accessories:
- Rubber boot
- Datalogging software
- Alligator clip
- Alkaline batteries
Applications:
The versatility of the 04 Series makes it suitable for a wide range of applications, including:
- Hazardous material handling
- Mining operations
- Refineries and petrochemical facilities
- Water and wastewater treatment plants
- Pharmaceuticals manufacturing
- Utilities and energy plants
- Chemical processing plants
- Fire services and emergency response teams
- Steel mills and metalworking industries
Datalogging:
The device offers flexible datalogging options with intervals as short as 10 seconds for up to 10 hours or as long as 10 minutes for up to 600 hours. It records crucial data such as alarms, alarm trends, gas readings, calibration and bump test history, and instrument settings, providing valuable insights for safety monitoring.
Specifications:
The 04 Series covers a range of gases, each with its own detection range, alarm set points, and continuous operation hours:
- Hydrogen Sulfide (H2S)
- Carbon Monoxide (CO)
- Oxygen (O2)
- Ammonia (NH3)
- Chlorine (Cl2)
- Hydrogen Cyanide (HCN)
- Nitrogen Dioxide (NO2)
- Phosphine (PH3)
- Sulfur Dioxide (SO2)
Alarms:
The 04 Series features three alarm methods: gas alarm, trouble alarm, and STEL/TWA alarms. These alarms are conveyed through flashing LEDs, intermittent buzzers, display of gas values, and vibration, ensuring that alerts are noticed even in noisy or challenging environments.
Common Specifications:
- Sample Method: Diffusion
- Response Time: T90 in 30 seconds
- Battery Options: Alkaline dry cell (2-AAA size)
- Display: Digital LCD with gas name and concentration, auto backlighting during alarms, operation icon, and battery icon
- Operating Temperature and Humidity: -4°F to 122°F (-20°C ~ +50°C), 0-90% RH non-condensing
- Dimensions: 2.1″ W x 2.64″ H x 0.94″ D (54 x 67 x 24 mm), 2.8 ounces (80g)
- Enclosure: Dust and water-resistant with an IP-67 rating
- Safety Rating: ATEX/IECEx approved, QPS classified as intrinsically safe for Class I, Division 1, Groups A, B, C, and D
- Special Functions: Manual backlight for LCD (automatically lit during alarm), Peak hold, STEL & TWA
The 04 Series single gas monitor from RKI Instruments is your reliable safety companion, providing dependable gas detection and alarm capabilities in a durable and cost-effective package. With its field-replaceable sensors, robust build, and compatibility with various RKI instruments, it’s a valuable addition to your safety toolkit. Ensure the safety of your workforce and operations with the 04 Series – your trusted guardian in hazardous environments.
The 04 Series can be purchased here: 04 Series Monitors


