Selling out fast, get yours before they're gone!

SKU: RKI01-73-0073

RKI Instruments SC-04 Series NO2 Single Gas Monitor 73-0073

$606.67

Ships in 6 - 8 weeks

Description

The RKI Instruments SC-04 Series NO2 Single Gas Monitor (73-0073) is a single-gas toxic personal monitor designed for long service life with field-replaceable sensors and filters. With a protective rubber boot and an IP-67 rating, the SC-04 Series with a 3-year warranty is built to operate reliably in industrial environments where nitrogen dioxide exposure must be continuously tracked.

Applications: Hazardous material response, Mining, Refineries/petrochemical, Water/wastewater treatment, Pharmaceuticals, Utilities, Chemical plants, Fire services

Key Features:

Personal monitoring for NO2 (nitrogen dioxide)
Operates 3,000 hours on replaceable alkaline batteries (2-AAA)
Digital LCD readout
Easy one-button Power Mode on/off
Pocket size: 2.1"(W) x 2.6"(H) x 0.9"(D)
Lightweight: 2.8 ounces
Impact, dust, and water resistant (IP-67)
Replaceable rubber boot
Alligator clip with 360° rotation
Data log: 10 to 600 hours with adjustable intervals
Audible / visual / vibration alarms
Automatic backlight
Low battery alarm
Intrinsically safe, ATEX and C/US approvals
3-year warranty on material, workmanship, and sensors

Specifications:

Gas Detected: Nitrogen Dioxide (NO2)
Detection principle: Electrochemical
Detection range: 0–20.00 ppm (0.05 ppm resolution)
Alarm set points: 1st: 2.00 ppm, 2nd: 4.00 ppm, 3rd: 20.00 ppm, TWA: 0.50 ppm, STEL: 1.00 ppm
Alarm types: 1st, 2nd, 3rd (user adjustable), OVER alarm, STEL, TWA; Trouble alarms: sensor connection, low battery, circuit failure, calibration range error
Gas sampling: Diffusion
Response time: T90 in 30 seconds
Accuracy: ±10% of reading or ±5% of full scale
Data logging: 10-sec intervals = 5 hr; 5-min intervals = 150 hr; 10-min intervals = 300 hr. Records alarms, alarm trends, gas readings, calibration & bump test history, instrument information and settings
Continuous operation: 3,000 hours on alkaline dry cell (at 25°C, no backlight)
Safety rating: ATEX/IECEx approved; QPS classified "C/US" as intrinsically safe, Class I, Division 1, Groups A, B, C, D
Enclosure: Dust and water resistant, IP-67
Display: Digital LCD, gas name & concentration, auto backlight during alarm, operation icon, battery icon

Monitor Includes:

Rubber protective boot
Alkaline batteries (2-AAA size)
Alligator clip
Data log software

Optional Accessory: Downloading cable, USB / IrDA adapter

SC-04 Manual:

04 Series User Setup Program Operator's Manual:

04 Series Data Logger Management Program Operator's Manual:

Part Number:
73-0073

Frequently Asked Questions

What industries use the RKI SC-04 NO2 monitor most frequently?

Nitrogen dioxide monitors are critical in operations that involve combustion processes, welding, electroplating, chemical manufacturing, and any site where nitric acid or nitrate compounds are handled. Fire services also use NO2 monitors during overhaul and investigation. OSHA's permissible exposure limit for NO2 is within 5 ppm as a ceiling value; the SC-04's alarm set points are factory-configured within this compliance range and are user-adjustable.

How does the SC-04 Series NO2 monitor handle data logging?

The SC-04 (73-0073) logs up to 300 hours of gas readings in 10-minute intervals. The data logger records gas concentrations, alarm events, STEL and TWA trending, calibration history, and bump test records. Data is extracted using the optional USB/IrDA downloading cable and the included data log software.

Is the SC-04 NO2 monitor intrinsically safe?

Yes. The SC-04 Series is ATEX/IECEx certified and QPS classified as intrinsically safe for Class I, Division 1, Groups A, B, C, and D locations. The IP-67 rating provides additional protection against dust and water ingress, making the monitor suitable for outdoor and wet industrial environments.

How long does the battery last in the SC-04 Series?

The SC-04 Series runs up to 3,000 hours on two standard AAA alkaline batteries under normal operating conditions. Batteries are field-replaceable. The monitor includes a low-battery alarm that activates before the battery reaches a level that could compromise detection accuracy.

Can PK Safety service and calibrate the SC-04 NO2 monitor?

Yes. PK Safety is an RKI Factory Authorized Service Center. We carry SC-04-compatible NO2 calibration gas and accessories. Our team recommends bump testing before each use and full calibration on a regular schedule. Call 800.829.9580 to discuss calibration requirements or schedule service.