Description
SC-04 Single-Gas Chlorine Monitor 0-20 ppm
The RKI Instruments SC-04 Single-Gas Chlorine Monitor (Part No. 73-0075) is a compact personal gas detector designed for continuous monitoring of chlorine (Cl₂) concentrations from 0 to 20 ppm. Built around an electrochemical sensor, the SC-04 features an IP67-rated enclosure, field-replaceable sensor and filters, multiple alarm methods, and intrinsic safety approvals for hazardous environments. Its compact design, rotating alligator clip, and long operating life make it suitable for industrial and utility workers requiring reliable chlorine detection.
Key Features
- 🔹 Dedicated chlorine (Cl₂) monitoring with 0-20 ppm measuring range
- 🔹 Electrochemical sensor technology
- 🔹 Field-replaceable sensor and filters
- 🔹 Up to 9,000 hours continuous operation on two AAA alkaline batteries
- 🔹 Audible, visual, and vibration alarms
- 🔹 Three user-adjustable alarm levels
- 🔹 IP67 impact, dust, and water-resistant housing
- 🔹 360° rotating alligator clip
- 🔹 Automatic backlight during alarm conditions
- 🔹 Built-in data logging capability
- 🔹 Replaceable protective rubber boot
- 🔹 Intrinsically safe for hazardous locations
Benefits
- ✅ Provides continuous personal protection against chlorine exposure
- ✅ Easy field servicing reduces downtime and maintenance costs
- ✅ Compact, lightweight design improves user comfort
- ✅ Multiple alarm modes help ensure warnings are noticed in noisy environments
- ✅ Rugged construction withstands demanding industrial conditions
- ✅ Long sensor life helps reduce ownership costs
- ✅ Compatible sensor platform used across several popular RKI instruments
Specifications
| Brand | RKI Instruments |
| Model | SC-04 |
| Part Number | 73-0075 |
| Product Type | Single-Gas Chlorine Monitor |
| Target Gas | Chlorine (Cl₂) |
| Detection Range | 0-20 ppm |
| Sensor Type | Electrochemical |
| Sampling Method | Diffusion |
| Power Supply | 2 x AAA Alkaline Batteries |
| Operating Time | Up to 9,000 hours (model dependent) |
| Dimensions | 2.1 in (W) x 2.6 in (H) x 0.9 in (D) |
| Weight | 2.8 oz |
| Ingress Protection | IP67 |
| Alarms | Audible, Visual and Vibration |
| Display | Digital LCD with Automatic Backlight |
| Operating Temperature | -20°C to 50°C |
| Humidity | 0-90% RH, Non-Condensing |
| Clip Type | 360° Rotating Alligator Clip |
| Warranty | 1 Year Chlorine Sensor Warranty |
| Included in Package | SC-04 Monitor, AAA Batteries, Alligator Clip |
How to Use
- Install the supplied AAA alkaline batteries.
- Turn on the monitor and allow it to complete its startup sequence.
- Verify readings in clean air before use.
- Attach the monitor to clothing using the rotating alligator clip.
- Wear the detector in the breathing zone during chlorine-related work.
- Follow site procedures immediately if any alarm activates.
- Perform bump tests and maintenance according to the operator’s manual.
⚠️ The manufacturer recommends bump testing before each day of use to verify proper sensor response and alarm operation.
⭐⭐⭐⭐⭐ “Compact and easy to wear all day. The alarm system is impossible to miss.” — Michael S.
⭐⭐⭐⭐⭐ “Excellent detector for chlorine monitoring at our treatment facility.” — Daniel R.
⭐⭐⭐⭐⭐ “Rugged housing and long battery life make it dependable in the field.” — James T.
Frequently Asked Questions
What gas does this monitor detect? This model is configured specifically for chlorine (Cl₂).
What is the measuring range? The detector measures chlorine concentrations from 0 to 20 ppm.
What type of sensor does it use? It uses an electrochemical chlorine sensor.
Can the sensor be replaced? Yes. The sensor and filters are field replaceable.
How are alarms communicated? The detector uses audible, visual, and vibration alarms simultaneously.
Is it suitable for hazardous locations? Yes. The SC-04 carries intrinsic safety approvals including ATEX/IECEx and North American hazardous-location certifications.
Does it record data? Yes. The monitor includes data logging functionality.
How is the unit worn? The supplied 360° rotating alligator clip allows secure attachment to work clothing.
Industries & Applications
- 💧 Water and wastewater treatment facilities
- 🏭 Chemical processing plants
- ⚙️ Industrial maintenance operations
- 🚒 Fire and emergency response services
- ☣️ Hazardous materials response teams
- 🏢 Municipal utilities
- 👷 Personal toxic gas monitoring programs
Compliance & Certifications
- ✔️ IP67 ingress protection rating
- ✔️ ATEX approved
- ✔️ IECEx approved
- ✔️ QPS classified intrinsically safe
- ✔️ Class I, Division 1, Groups A, B, C and D
- ✔️ C/US hazardous-location approval
The RKI SC-04 Chlorine Monitor delivers dependable personal gas protection in a compact and rugged form factor. With field-replaceable components, intrinsic safety certifications, multiple alarm methods, and long operating life, it is an excellent choice for professionals working where chlorine exposure risks must be continuously monitored.
