ReviewsSo2 Below 50ppm

Portable Carbon Monoxide Detectors CO Detector Monitor for Car, Aircraft, Bus, Trucks, Pilots, Vehicle, Travel and Camping, with Visual and Audible Alerts Alarm Battery Powered

ACCURATE AND RELIABLE: CO low-level alarm at 9ppm & 25ppm alarms, 9-month runtime with battery-powered..
FAST ALARMS: Alarms at >10ppm @ 60 secs, compared to home CO detectors. 10-24ppm: Alarm Level I,shows real-time CO concentration and red light flashe.
25-49ppm: Alarm Level II, shows real-time CO concentration.
≥50ppm: Alarm Level III, shows real-time CO concentration.
red light flashes with a buzzer sounds and a Vibration..
EASY USE: Easy to set and use with simple one-button operation, Designed primarily for Vehicles(i.e. trucks, SUVs, buses, aircraft, boat).
TRUST: * 1 year limited warranty * Arrives factory calibrated * 100% product test * 100% quality guaranteed.

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Swimming Pool Test Strips Spa Testing Strips for Hot Tubs Tester Kit, PH, Total Chlorine, Free Chlorine/Bromine, Total Alkalinity, Cyanuric Acid, Total Hardness Water Chemistry 50PCS 6-Way

【2022 UPGRADE to prevent cross color】These pool test kits can test swimming pool/ spa water PH, Total Chlorine, Free Chlorine, Total Alkalinity, Cyanuric Acid, Total Hardness at the same time..
【Easy to stored】Pool water quality should be tested once a week. There are 50 pool and spa testing strips and desiccant in the bottle, so the swimming pool test strips can be conveniently stored..
【Easy to use and read】Just dip a testing strips for hot tubs, swimming pool or spa in water 2 seconds, take it out and wait for 60 seconds, compare each panel color change of the color chart on the side of the bottle, then you can get the the accurate results of water quality..
【Easy to carry】Each pool testing kit for above ground pool with 3.75×1.38in×1.38 inch and 1.1oz, it is very convenience to take to anywhere. Suitable for pool, spa, hot tub water quality test..
【Optimum concentration】The pool test strips recommended ranges: total chlorine 0-25 ppm, free chlorine 1-3 ppm, pH 7.2-7.6, total alkalinity 80-120 ppm, cyanuric acid 30-50ppm and total hardness 250-500 ppm..

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CO Experts Ultra Low Level Carbon Monoxide Health Monitor

Continuous "real time" display of Carbon Monoxide levels from 5-50PPM.
Focused calibrated accuracy at multiple alarm points - 5, 25, and 50PPM.
Scroll Through display options for real time levels, Peak levels, and possible COhb exposure.
2 AAA Alkaline battery powered (included).
2 Wall Mount options - Secure fasteners or durable Velcro mount for easy portability.

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Industrial Test Systems WaterWorks 480124 Free Chlorine Test Strip, Ultra High II Range, 61 Seconds Test Time, 0-2000ppm Range (Bottle of 50)

✔EASY TO USE: Single dip and read test strip procedure and optimized color chart make the product ideal for technical and non technical users alike for detection of Ultra High Range Free Chlorine in water – measures critical CHLORINE SANITIZING ranges (from 50– 200 ppm) and DISINFECTING ranges (from 500– 2000 ppm) – NO BLEACH OUT of indicator like other tests.
✔COMPLETE KIT: Bottle of 50 test strips with verified color chart bottle label for easy color matching.
✔DETECTION LEVELS: Free Chlorine 0, 25, 50, 200, 500, 800, 1100, 1500, 2000 ppm.
✔ACCURATE AND RELIABLE: Components are tested by Quality Control personnel at each step and are rejected if they are outside of specifications. Standards are prepared using calibrated equipment, and concentrations are confirmed by recognized reference methods.
✔HIGHEST QUALITY: ITS, manufactures test strip products in their USA facility in an environment that allows for reproducibility, accuracy, and traceability based on Good Manufacturing Practices.

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Hofun TDS Meter Digital Water Quality Tester, TDS Temperature & Conductivity Meter 3 in 1, 0-4999 ppm, EC Meter, Digital Water Testers for Drinking Water, PPM Meter for Hydroponics Aquarium

...IT LCD DISPLAY & QUALIFIED WATER TESTER ] Hofun water quality test meter for hydroponics ec meter with Big Backlit LCD is far superior than other ones, which allows wider angles of data reading and night reading. Besides, Red backlight ( ppm figure over 40 ) means high level ppm figure. Green backlight ( ppm figure below 40 ) indicates TDS figure qualified for direct drinking water (Notes: International standard adopted TDS figure 40 as a dividing line)..
✔[ EASY OPERATION & ENERGY SAVING ] Hofun ppm meter allows one button operation. Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes..
✔[ HIGH QUALITY TDS METER] Hofun water quality test meter is manufactured under extra high standards and of excellent quality. Thus we have absolute confidence of our water test meter..

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Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries

Detection range: Approximately 50 to 10,000 ppm* (*based on Methane).
Two levels of sensitivity: High (approximately 50 to 1000 ppm) and Low (approximately 1000 to 10,000 ppm).
Five red LED's (visual) and 85dB audible alerts that increase with gas concentration.
Automatic zero-point calibration at power-up (lights will flash during self-calibration.
this does not indicate the presence of gas).
18-Inch flexible gooseneck expands sensor's reach.
Auto power-off after 10 minutes of non-usage conserves battery life.

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Extra Strength Colloidal Silver Liquid by Optimum you | 500 PPM 8 oz with Spray Bottle | Immune Support | Stem Cell Support | Superior Healing

FOR A STRONGER IMMUNE SYSTEM AND FASTER HEALING ● Optimum You Colloidal Silver liquid is up to 50 times stronger than most silver products. For over....
HOW COLLOIDAL SILVER HELPS ● Optimum You Colloidal Silver 500 ppm stimulates and supports the stem cells that are vital to the body’s immune....
WHY 500 PPM MEANS EXTRA STRENGTH ● 500 ppm is a measure of concentration and potency. It stands for parts per million. At 500 ppm, Optimum You....
HOW TO USE IT ● Drink Optimum You Colloidal Silver at full 500-ppm strength. It’s safe for the whole family, including pets. Or hold it under your....
LIGHT IN COLOR, NOT IN STRENGTH ● For centuries, lighter colored silver ions have delivered awesome immune system support. Optimum You Colloidal....

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Nature Made Fish Oil 1200mg, 360mg Omega-3 100 Liquid Softgels (3 Pack)

Nature Made Fish Oil supply comes wild caught ocean fish, not farm raised fish..
State-of-the-art purification processes are used to remove PCBs, dioxins and furans, and mercury to ensure purity levels below 0.09 ppm, 2 ppt WHO TEQs, and 0.1 ppm respectively..
Supportive but not conclusive research shows that consumption of EPA and DHA omega-3 fatty acids may reduce the risk of coronary heart disease. (See nutrition information for total fat, saturated fat and cholesterol content.).

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LEISURE TIME Spa & Hot Tub Bromine 4 Way Test Strips, 50 Count (4 Pack)

Helps keep spa water balanced within the following recommended ranges: pH 7.2 to 7.8, total alkalinity 80 to 120 ppm, bromine 2-4 ppm, and calcium hardness 150 to 400 ppm.
simply dip a strip in the spa or hot tub water and compare to the color chart on the back of the bottle..
Available for chlorine and bromine sanitizing systems.
Compatible with bromine and ozone systems.

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Lexmark MX611DE Monochrome Printer with Scanner, Copier and Fax - 35S6701,Gray/white

The Lexmark MX611de MFP with print copy fax email and scan functions prints up to 50 ppm Included are 2-sided printing and 650 sheets of input.
Lexmark MX611de Mono Laser MFP (50 ppm) (800 MHz) (1 GB) (85" x 14") (1200 x 1200 dpi) (Max Duty Cycle 150 000 Pages) (p/s/c/f) (Duplex) (USB) (Ethernet) (Touchscreen) (650 Sheet Input Cap).

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Silver Wings

...and stays in suspension indefinitely. The process is scientific, complicated and precise. It requires laboratory grade techniques and industrial level equipment to produce. Ultra Silver will not degrade or settle out over time. It is non reactive which makes it ideal for storage and use anywhere..
Lab Certified PPM - We independently test and guarantee our parts per million (PPM) concentration level. We openly share the results which you may find in the product pictures. A TDS meter WILL NOT measure PPM, only total dissolved solids..
Not Ionic - Ionic silver is not colloidal silver. Many products are marketed as colloidal silver, but are actually ionic silver. These will be clear, have a PPM of less than 30 and are produced simply by electrolysis (you may do this at home)..
True Color - As the concentration increases, a true colloidal silver transitions from a golden amber to a dark brown. This is the natural coloration of a concentrated, nano sized, true colloidal silver product..
Economical - Ultra Silver has concentration levels far beyond other brands. Our price structure gives us value not found anywhere else! Ultra Silver is typically 15 to 50 times more concentrated than competing products..

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