SKU: 74407773244

O4 Series - Single Gas Personal Monitors

Sale price$94.50 Regular price$105.00
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

O4 Series - Single Gas Personal MonitorsO4 Series Single Gas Personal Monitors Features Continuously operate for over one year (H2S & CO) Toxic gases include: NH3, Cl2, HCN, NO2, PH3 & SO2 CO with H2 elimination CO & O2 Dual Sensor Field serviceable Pocket size 2. 1(W) x 2. 6(H) x 0. 9(D), 2. 8 ounces Impact, dust, and water resistant (IP 67) Replaceable rubber boot Alligator clip with 360 rotation Audible visual vibration alarms Automatic backlight Intrinsically safe, ATEX and C US

O4 Series - Single Gas Personal Monitors

Features

Continuously operate for over one year (H2S & CO)
Toxic gases include: NH3, Cl2, HCN, NO2, PH3 & SO2
• CO with H2 elimination
• CO & O2 Dual Sensor
• Field serviceable
• Pocket size 2.1”(W) x 2.6”(H) x 0.9”(D), 2.8 ounces
• Impact, dust, and water resistant (IP-67)
• Replaceable rubber boot
• Alligator clip with 360° rotation
• Audible / visual / vibration alarms
• Automatic backlight
• Intrinsically safe, ATEX and C / US approvals
• 3 Year warranty*

The 04 Series single gas monitor is designed to operate for many years with field replaceable sensors and filters.

The 04 Series can be operated continuously for up to 9,000 hours on (2) AAA size alkaline batteries (depending on model).

The 04 Series has 3 preset alarms that are user adjustable. Each version is also equipped with visual, audible, and vibration alarms as standard.

The replacement sensors are inexpensive, easily field replaceable, and are interchangeable with other popular RKI instruments like the GX-3R, GX-3R Pro, and GasWatch 3. Sensors have a life expectancy of over 3 years and are backed by a 3 year warranty.*


Each 04 Series monitor is impact, dust, and water resistant with an IP-67 ingress protection rating. 04 Series instruments are safe for use in hazardous locations, classified as intrinsicallysafe ATEX/IECEx and by QPS to U.S. and Canadian standards for Class I, Division 1, Groups A, B, C, and D atmospheres. For additional information please visit the manufacturer web site at www.rkiinstruments.com.
* 3 year warranty on material and workmanship including sensors
(1 year warranty for Oxygen, Ammonia and Chlorine sensors)

OX-04 (replaces OX-03 SKU 72-0010)

Features

  • Continuously operate for over one year (H2S & CO)
  • Toxic gases include: NH3, Cl2, HCN, NO2, PH3 & SO2
  • CO with H2 elimination
  • CO & O2 Dual Sensor
  • Field serviceable
  • Pocket size 2.1”(W) x 2.6”(H) x 0.9”(D), 2.8 ounces
  • Impact, dust, and water resistant (IP-67)
  • Replaceable rubber boot
  • Alligator clip with 360° rotation
  • Audible / visual / vibration alarms
  • Automatic backlight
  • Intrinsically safe, ATEX and C / US approvals
  • 3 Year warranty*
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74407773244

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demagnitized
Grantham, US
★★★★★ 1
Not durable
Color: Pink, Color: Pink
My dog tore this toy up within hours. She’s not an aggressive chewer but took the top right off!
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Reviewed in the United States on April 29, 2026
E
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Erich Glave
Charlottesville, US
★★★★★ 5
Tough and fun toy
Color: Blue
This toy has outlived and exceeded expectations! Our dog loves it! He normally destroys any toy within a week or two. This is our second one but the first lasted eight months.
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Reviewed in the United States on April 20, 2026
M
Verified Purchase
minuscipher
Chelsea, US
★★★★★ 1
Not for heavy chewers!
Color: Blue, Color: Blue
Didn’t last more than 10 minutes
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Reviewed in the United States on June 6, 2026
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Daniel R.
Phoenix, US
★★★★★ 5
Built for rough use
Color: Pink
Our dog plays with it for hours
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Reviewed in the United States on May 17, 2026
J
Verified Purchase
Julie Byrd
Lowell, US
★★★★★ 4
great item
Color: Blue
my dog loves and he is a aggressive chewer still going stron
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Reviewed in the United States on November 5, 2025

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