Skip to main content
RKI Instruments

RKI Instruments 72-RA-C-51 Multi-Gas Detectors, GX-3R 4-Gas Monitor LEL/O2/CO/H2S

Item # 72-RA-C-51
$777.75

RKI Instruments 72-RA-C-51 is a GX-3R 4-gas monitor for LEL, O2, H2S and CO (diffusion sampling). Sensor ranges LEL 0-100% LEL; O2 0-40.0% vol; H2S 0-200.0 ppm; CO 0-2,000 ppm. Battery life per RKI: approx. 25 hours on the Li-ion battery, 3 hour full charge. Dust and water resistant to IP-66/68; approvals ATEX, CSA, MED, IECEx. Includes carrying case, hand aspirator, alligator clip.

RKI Instruments 72-RA-C-51 specifications

ItemRKI Instruments data
Part number72-RA-C-51
Product TypeGas Monitor
ModelGX-3R
Gases DetectedLEL; O2; H2S; CO
Number of Gases4
Sample MethodDiffusion
BatteryLi-Ion
Charger100-240 VAC
IncludesCarrying Case; Hand Aspirator; Alligator Clip
Warranty3 years
StandardsATEX, CSA, MED, IECEx
Country of OriginJapan
Dimensions (each)10.5 x 7 x 4 in (W x H x L)
Sensor RangesLEL 0-100% LEL; O2 0-40.0% vol; H2S 0-200.0 ppm; CO 0-2,000 ppm
Battery LifeApprox. 25 hours (Li-ion), 3 hour full charge

Source: RKI Instruments published product data (GX-3R datasheet).

Related RKI Instruments part numbers

Part numberVersionProduct TypeModelGases Detected
72-RA-C-51Multi-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-C-56Multi-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-CMulti-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-C-59-NGRMulti-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-DMulti-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-EMulti-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-C-59Multi-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-C-58Multi-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO
72-RA-C-50Multi-Gas DetectorsGas MonitorGX-3RLEL; O2; H2S; CO

By RKI Instruments's published data; each part number links to its own page.

RKI Instruments 72-RA-C-51 questions

What is the RKI Instruments 72-RA-C-51? RKI Instruments 72-RA-C-51 is a multi-gas detector. Gases detected LEL, O2, CO, H2S; number of gases 4; sample method Diffusion.

What standards does the 72-RA-C-51 meet? RKI Instruments lists CSA.

What gases does the 72-RA-C-51 detect? LEL, O2, H2S, CO.

What battery does the 72-RA-C-51 use? Li-Ion, per RKI Instruments.

What is the warranty on the 72-RA-C-51? 3 years, per RKI Instruments.

Which other RKI Instruments part numbers are in this family? 72-RA-C-56 (multi-gas detectors), 72-RA-C (multi-gas detectors), 72-RA-C-59-NGR (multi-gas detectors), 72-RA-D (multi-gas detectors), 72-RA-E (multi-gas detectors).

The RKI 72-RA-C-51 is a GX-3R 4-gas personal gas monitor configured to detect combustible gas (LEL), oxygen (O2), carbon monoxide (CO) and hydrogen sulfide (H2S). This configuration ships with a 100-240 VAC charger, a padded carrying case, a hand aspirator and an alligator clip. The GX-3R is RKI's smallest and lightest 4-gas personal monitor, with field-replaceable sensors and filters, a non-compliance indicator, up to 25 hours of run time on the lithium-ion battery and an IP66/68 water- and dust-resistant design.

  • Smallest & lightest 4 gas monitor
  • Field replaceable sensors & filters
  • Non-Compliance Indicator
  • 25 hours of operation (Lithium-ion battery)
  • Water and dust resistant design, IP66/68

Item number: 72-RA-C-51. Sold individually. Warranty: 3 years. Country of origin: Japan.

More information on the RKI GX-3R page | Watch the product video

Usually ships in 1–2 business days; delivery in 3–7 business days.

Adding to cart… The item has been added
Specifications
Product TypeGas Monitor
ModelGX-3R
Gases DetectedLEL; O2; H2S; CO
Number of Gases4
Sample MethodDiffusion
BatteryLi-Ion
Charger100-240 VAC
IncludesCarrying Case; Hand Aspirator; Alligator Clip
Warranty3 years
StandardsATEX, CSA, MED, IECEx
Country of OriginJapan
Dimensions (each)10.5 x 7 x 4 in (W x H x L)
Shipping Package16 x 10 x 6 in (W x H x D), 5 lb
Sensor RangesLEL 0-100% LEL; O2 0-40.0% vol; H2S 0-200.0 ppm; CO 0-2,000 ppm
Battery LifeApprox. 25 hours (Li-ion), 3 hour full charge
Shipping & returns

In-stock orders: 1–2 business days to process, then 2–5 business days by ground (3–7 in all); regular rates apply and Contractor Direct orders ship free. Most items can be returned within 30 days in new, resalable condition; respirators, filters and other hygiene items are final sale. Shipping policy · Returns policy

RKI Instruments 72-RA-C-51 Multi-Gas Detectors, GX-3R 4-Gas Monitor LEL/O2/CO/H2S$777.75

More RKI Instruments and other brands in this category

Reviews

No reviews yet. Used this on the job? Tell other crews how it held up.

Write a review ›
How to buyCard, purchase order or invoice terms; quotes on request; agencies and institutions welcome.
Live Service & SupportReal people who know the products, Monday to Friday 7:30am to 4pm Pacific. 925-215-7337
We DeliverWe ship nationwide. Parcel and LTL freight to job sites and businesses across the U.S.