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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
SMART SENSOR ST8900 4 in 1 Toxic Gas CO Carbon Monoxide Detector Hydrogen Sulfide H2S Oxygen Combustible Gas Test LCD Display Monitor, Sound Light Vibration AlarmDIY Supplies: Paint & Decorating Model Number: SMART SENSOR 4 in 1 Gas Detector This professional 4 in 1 gas detector is designed for detecting CO, H2S, O2 and LEL gas. It can continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, light and vibrate. High precision portable CO, H2S, O2 and LEL gas tester with compact size and light
- DIY Supplies:Paint & Decorating
- Model Number:SMART SENSOR 4 in 1 Gas Detector
This professional 4 in 1 gas detector is designed for detecting CO, H2S, O2 and LEL gas. It can continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, light and vibrate. High precision portable CO, H2S, O2 and LEL gas tester with compact size and light weight, very easy to carry and operate.
Features:
1. Detect 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL).
2. Continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment with professional and accurate measurement.
3. Sound & light vibration alarm works when one of the CO, H2S, O2 & LEL gas concentration reaches the level of the alarm.
4. Can set automatic shutdown time and concentration of alarm value.
5. Large color LCD display with back-light for easy reading.
6. Can connect to a sampling pump to operate in closed place.
7. Can be widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.
8. Size: 138*70*43mm, weight: 360g
Features:
1. Detect 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL).
2. Continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment with professional and accurate measurement.
3. Sound & light vibration alarm works when one of the CO, H2S, O2 & LEL gas concentration reaches the level of the alarm.
4. Can set automatic shutdown time and concentration of alarm value.
5. Large color LCD display with back-light for easy reading.
6. Can connect to a sampling pump to operate in closed place.
7. Can be widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.
8. Size: 138*70*43mm, weight: 360g
Specification:
| Package Weight |
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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
4.5 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Very versatile table for many uses.
Style: Rectangular, Size: 28 inch
These legs work great for replacing a free standing rv dinette by reusing the table top . We didn’t need a table that converted to a bed. Nice fit and finish and great quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
very good
Style: Zig Zag, Size: 28 inch
These are very stable and worked perfectly with our butcher blocks! The size and length are true to what it says! you can adjust height.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
★★★★★ 5
Perfect
Size: 16 Inch
Exactly what I ordered, took just a few minutes to assemble and mount the legs. Love that the bottoms can be manipulated to give a balanced stance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 5
Perfect
Size: 16 Inch
Love the sturdieness and the almost stram punk look to these. Great quality and easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2025
★★★★★ 4
Good Look and Adjustable Heights
Size: 16 Inch
Legs are sturdy enough, but to hold a small marble top, it required additional glue to secure the "wobble." Adjustable height was excellent and material quality good. Easy enough to install and works well for a table that I don't plan to move frequently.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2025
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