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Description
Stand Alone Oxygen Deficiency MonitorStand Alone Oxygen Deficiency Monitor Low profile design equipped with a unique tri color display, which changes color as oxygen levels reach each alarm level. Features Operates with or without a controller Range of 0 25. 0 % volume with 0. 1% increments Tri color visual alarm display 2 preset alarms; Green=Normal, Yellow=Alarm 1, Red=Alarm 2 Large easy to read digital display Three power options: 115 VAC, 24 VDC, or 2 AA alkaline Operates up to 1
Stand Alone Oxygen Deficiency Monitor
Low-profile design equipped with a unique tri-color display, which changes color as oxygen levels reach each alarm level.
Features
- Operates with or without a controller
- Range of 0-25.0 % volume with 0.1% increments
- Tri-color visual alarm display
- 2 preset alarms; Green=Normal, Yellow=Alarm 1, Red=Alarm 2
- Large easy to read digital display
- Three power options: 115 VAC, 24 VDC, or 2 AA alkaline
- Operates up to 1 year on one set of AA alkaline batteries
- Pressure compensation eliminates false alarms caused by pressure change
- Remote mount sensor cable available
The OX-600 is an indoor, standalone monitor that detects Oxygen (O2) with a range of 0-25.0 % volume with 0.1% increments. It’s sleek, low-profile design is equipped with a unique tri-color display, which changes color as oxygen levels reach each alarm level. The OX-600 has 2 preset alarms, and comes ready to operate with a simple wall mount bracket and 10 foot power cord. It is capable of operating with three different power options; 115 VAC, 24 VDC or alkaline batteries. If Oxygen is present, the user is notified by an audible alarm tone and the multicolored LED digital display.
The OX-600 uses a fast responding low-cost plug-in style galvanic cell sensor. This long life sensor is field-replaceable with no special tools required. The sensor can also be remotely mounted with an optional remote sensor cable.
Extender cable with remote box available in different lengths (3, 5, 10, or 20 meters).
Please Note: This item is recalibrated by the manufacturer before it ships. Orders generally ship in 24-36 hours.
| Detection Principle | Galvanic cell |
| Gas Detected | Oxygen (O2) |
| Detection Range | 0 ~ 25 vol% |
| Display Resolution | 0.1 vol% |
| Sampling Method | Diffusion or remote sampling method with optional extender cable |
| Indication Accuracy* | Within ±0.7 vol% |
| Response Time* | 90% Response within 30 seconds |
| Alarm Delay Time* | Within 5 seconds, after detecting 10 ~ 11 vol% gas at Oxygen deficiency alarm (18 vol% alarm). |
| Alarm Accuracy* | Within ±1 vol% of preset alarms |
| Alarm Levels | Two preset alarms (L-LL), alarm 1 = 19.0% vol, alarm 2 = 18.0% vol (other settings available) |
| Display of Alarm |
1st gas alarm: gas concentration reading blinks or orange light, flashing AL1 light or orange light, buzzer 2nd gas alarm: gas concentration reading blinks or red light, flashing AL2 light or red light, buzzer |
| Alarm Method | Latching or Non-latching |
| Alarm Contact | Dry contact, Form A or Form B, Form A standard Factory Setting, normally open (closed in ALARM) |
| Display | Digital LCD (3 digits, 7 segments / Green, Orange, Red) (For Alkaline battery version, the back light will be OFF during normal operation) |
| Trouble Alarm / Self-Diagnosis | System trouble / sensor connection trouble |
| Display of Trouble Alarm | Buzzer / content indication (flashing of red error message) |
| Trouble Alarm Method | Non-latching or Latching |
| Contact Capacity | 125VAC, 1A or 30VDC, 1A (Resistive load) |
| Output Signal | 4 ~ 20mA (Non-isolated, Resistive load under 300Ω) or 0DC-1V (Non-isolated) *only for 0DC-1V Alkaline battery specification |
| Extender Cable | Extender cable with remote box (3m, 5m, 10m or 20m lengths available) |
| Power Sources | 120VAC±10%, 50/60Hz, 24VDC±10%, or AA alkaline battery (2 each) |
| Power Consumption | AC specification: MAX 3.5VA, DC specification: MAX 2W |
| Continuous Operation (for Alkaline Battery version) | 1 year (no alarm, no indication) |
| Initial Clear | About 25 seconds |
| Operating Temperature | 0 ~ 104°F (no sudden change) |
| Operating Humidity | Below 90%RH (non-condensing) |
| Mounting Equipment | Wall mounting, sensor integrate type or remote type |
| Dimension | Body: approx. 3.15”(W) x 4.72”(H) x 1.2”(D) (80(W) x 120(H) x 35.5(D)mm) Remote sensor: approx. 1.57”(W) x 3.78”(H) x 1.2”(D) 40(W) x 96(H) x 35.5(D)mm (exclude the protrusion) |
| Weight | AC specification: approx. 7.05 oz (200g), DC specification: approx. 6.34 oz (180g), Alkaline battery specification: approx. 8.11 oz (230g) Remote sensor: approx. 1.94 oz (55g) (exclude the cable) |
| Warranty | One year materials and workmanship |
Specifications:
| Mfr. No. RKI-OX-600-115VAC | Indoor, standalone monitor that detects Oxygen (O2) with a range of 0-25.0 % volume with 0.1% increments. 115 VAC |
| Mfr. No. RKI-OX-600-2AA | Indoor, standalone monitor that detects Oxygen (O2) with a range of 0-25.0 % volume with 0.1% increments. 2 AA batteries |
| Mfr. No. RKI-OX-600-115VAC-S | Indoor, standalone monitor that detects Oxygen (O2) with a range of 0-25.0 % volume with 0.1% increments. 115 VAC. 3 meter sensor cable installed. |
| Mfr. No. RKI-OX-600-2AA-S | Indoor, standalone monitor that detects Oxygen (O2) with a range of 0-25.0 % volume with 0.1% increments. 2 AA batteries. 3 meter sensor cable installed |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.0 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious.
To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware.
I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome.
The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings.
One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐
These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room.
Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project.
One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely.
The rest of the hardware worked fine and once installed the shelves feel solid and hold items well.
Pros
- Clean modern look
- Easy installation
- Feels solid once mounted
- Good size for books or decor
Cons
- The small level included isn’t very accurate — use your own level
- One of the metal brackets was slightly bent out of the box but straightened out easily
Helpful tip:
Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely.
Final thoughts:
For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026