Test Kits & Thermometers


Save on Test Kits & Thermometers at Option Ridge. Top brands include CGOLDENWALL, Aulley, LEORX, YINMIK, HK-quty, TOOGOO(R), YARUIFANSEN, KKmoon, YLANK, dianpo, Thailand, Danner, MonkeyJack, AOXIANG, Vovomay, Single Mom, & Oregon Tools. Hurry! Limited time offers. Offers valid only while supplies last.



CGOLDENWALL Professional ORP detector Professional 169E Redox Tester Waterproof ORP Meter pH Measurement Test Tool
CGOLDENWALL Professional ORP detector Professional 169E Redox Tester Waterproof ORP Meter pH Measurement Test Tool
By CGOLDENWALL
In Stock
$82.00

mpn: XQ 57,

4.2 out of 5 stars with 84 reviews
Product description ORP is an abbreviation for Oxidation-Reduction Potential in English, which indicates the oxidation potential of a solution. The ORP value is a measure of the redox capacity of an aqueous solution, and its unit is mV. The ORP meter is a special instrument for testing the redox potential of a solution. Item specifics:  With Backlight Or Not:No Model Number:TPH01402 Display Type:Digital is_customized:Yes DIY Supplies:Plumbing Measure range:0-1999mV Power


6 In 1 Multi-parameter Water Testing Meter LCD Multi-function pH/RH/EC/CF/TDS/TEMP Water Quality Monitor Tester
6 In 1 Multi-parameter Water Testing Meter LCD Multi-function pH/RH/EC/CF/TDS/TEMP Water Quality Monitor Tester
By Aulley
In Stock
$113.21

mpn: elengy00732, ean: 0065600197468,

4.7 out of 5 stars with 112 reviews
DescriptionTo measure the pH/RH/temperature/conductivity EC/CF/TDS(PPM) of solution/water.Can test temperature in ?/?(switchable unit).Automatic temperature compensation function.Easy to use and provides instant display of results.Easy calibration of pH and TDS with just a mini-screwdriver.Imported IC design, can online monitoring for a long time, easy to use.Can work continuously more than 10 hours of power outage or outdoor without power after charging the battery for 3 hours.Clear LCD with


LEORX Swimming Pool Water Tester PH/CL2 Chlorine Tester (Grey)
LEORX Swimming Pool Water Tester PH/CL2 Chlorine Tester (Grey)
By LEORX
In Stock
$23.59

mpn: MT4A140952AGIHR5059, ean: 0190657390705,

4.1 out of 5 stars with 114 reviews
DescriptionThis is an electro-tester for testing pH and chlorine (Cl2) levels in water. Chlorine is the most commonly used disinfectant for water by killing bacteria, algae and microorganisms. It provides a very quick and convenient alternative to conventional testing papers and liquid test kits, which is ideal for routine monitoring of pH and chlorine levels of swimming pools, spas and different water sources.Package Including1 * Swimming Pool Water Quality Tester PH/CL2 Chlorine Tester (Grey)


7 In 1 LCD Multi-parameter Water Testing Meter Multi-function ORP/PH/RH/EC/CF/TDS/TEMP Water Quality Tester
7 In 1 LCD Multi-parameter Water Testing Meter Multi-function ORP/PH/RH/EC/CF/TDS/TEMP Water Quality Tester
By Aulley
In Stock
$141.24

mpn: elengy00733, ean: 0065600197475,

4.3 out of 5 stars with 140 reviews
DescriptionUsed to measure the ORP/pH/RH/temperature/conductivity EC/CF/TDS(PPM) of solution/water.Automatic temperature compensation.Test temperature in ?/?(switchable unit).Easy calibration of pH and TDS with just a mini-screwdriver.Clear LCD with backlight, 3 results displayed simultaneously.Easy to use and provides instant display of results.Imported IC, can online monitoring for a long time.Can work continuously more than 10 hours of power outage or outdoor without power after charging the


YINMIK TDS EC Tester Meter for Water Quality Testing, TDS, EC, Temperature 3-in-1, 0-9990 ppm, 1 ppm Resolution, +/-2% High Accuracy,E-3
YINMIK TDS EC Tester Meter for Water Quality Testing, TDS, EC, Temperature 3-in-1, 0-9990 ppm, 1 ppm Resolution, +/-2% High Accuracy,E-3
By YINMIK
In Stock
$17.99

ean: 0656699510599,

4.7 out of 5 stars with 137 reviews
➤ Features ● Lock function: Makes it easy to read and record, press HOLD button then remove from test solution. ● 4 Display modes: Press SHIFT button: TDS - ppm & °C, EC - µs/cm & °C, TDS - ppm & °F, EC - µs/cm & °F. 9minute Auto Shut Off feature, so battery won't run down. ● Measurement Range: Conductivity: 0 - 9990 µs/cm TDS: 0 - 5000 ppm (parts per million) Degrees Celsius: 0.1 - 80.0°C, Fahrenheit: 32.0 - 176.0°F ● Accuracy: ± 2% ● Net weight: 1.94oz (55g) ● Size:


3 in 1 Digital LCD TDS EC Temperature PPM Meter Tester Filter Pen Stick Water Qu
3 in 1 Digital LCD TDS EC Temperature PPM Meter Tester Filter Pen Stick Water Qu
By HK-quty
In Stock
$22.30
4.1 out of 5 stars with 72 reviews
Specifications: 1.Name: Digital TDS Meter Tester 2.Color : Blue 3.Conductivity: 0-9990us/cm 4.TDS: 0-9990ppm 5.Degrees Celsius: 0.1-80.0℃ 6.Accuracy : +/-2% 7.Item size :155mm x 30mm x 15mm 8.Battery : 1 x 3 Button Cell battery (included) Usage: 1) Please unplug the electrode sleeve before use 2) Press the switch, place the electrode in the test solution and shake it gently. 3) After the numerically stable, press the ''HOLD'' button and take it out of the solution to read. 4)Turn off the


TOOGOO(R) 3 in 1 Portable Pen Type Digital pH EC TEMP Meter Water Quality Monitor Tester
TOOGOO(R) 3 in 1 Portable Pen Type Digital pH EC TEMP Meter Water Quality Monitor Tester
By TOOGOO(R)
In Stock
$31.13

mpn: 106053, ean: 4894621377711,

4.7 out of 5 stars with 81 reviews
* TOOGOO is a registered trademark. ONLY Authorized seller of TOOGOO can sell under TOOGOO listings.Our products will enhance your experience to unparalleled inspiration. TOOGOO(R) 3 in 1 Portable Pen Type Digital pH EC TEMP Meter Water Quality Monitor TesterEasy calibration of pH and EC with just a mini-screwdriver. Automatic temperature compensation. Large and clear LCD with backlight, easy to read and accurately measuring functions. Apply in water sources, aquarium, hydroponics, spas,


0-1999 PPM Digital LCD TDS Tester Meter Water Quality Filter Purity Testing Tool Mini PH Tester
0-1999 PPM Digital LCD TDS Tester Meter Water Quality Filter Purity Testing Tool Mini PH Tester
By YARUIFANSEN
In Stock
$21.73

mpn: YARUIFANSEN, ean: 0614024567199,

4.3 out of 5 stars with 13 reviews
100% Brand New and High Quality This is the best value meter in the world. It electronically tests the TDS (Total Dissolved Solids) level of water, which makes sure you, your pets, and your family are getting the maximum benefits from water. TDS (Total Dissolved Solids) is the total weight of all solids (minerals, salts and metals) dissolved in water. The lower the TDS level is, the purer the water is Highly convenient, efficient and accurate With slim line pen-style design, it's easy to use


KKmoon Mini 3 in 1 Pen Type Water Quality Tester Professional Multi-parameter Waterproof Water Quality Monitor EC & TDS Meter Acidometer Water Quality Analysis Device
KKmoon Mini 3 in 1 Pen Type Water Quality Tester Professional Multi-parameter Waterproof Water Quality Monitor EC & TDS Meter Acidometer Water Quality Analysis Device
By KKmoon
In Stock
$22.99

mpn: WGJ5871360847897HS, ean: 0799899044782,

4.1 out of 5 stars with 110 reviews
The water quality monitor is professional and useful tool for testing EC/TDS/TEMP of solution level. Suitable for aquarium pool, drinking water and environment water.Features: Widely used to test the EC & TDS & TEMP of solution/water. Imported IC and high cost performance. Test temperature in ℃ / ℉(switchable unit). Easy calibration of TDS and EC with just a mini-screwdriver. Electrode probe can be replaced, ATC function. Automatic temperature compensation. Large and clear LCD with


YLANK Water Quality Tester, TDS Meter Digital, EC Meter & Temperature Meter 3 in 1,Accurate TDS Range 0-9990ppm, Ideal Water Test Meter Drinking Water, Aquariums, etc.
YLANK Water Quality Tester, TDS Meter Digital, EC Meter & Temperature Meter 3 in 1,Accurate TDS Range 0-9990ppm, Ideal Water Test Meter Drinking Water, Aquariums, etc.
By YLANK
In Stock
$12.99

ean: 0652042765586,

4.9 out of 5 stars with 66 reviews
YLANK TDS Water Quality Tester used to test the value of water,electrical conductivity of water to determine the purity of the water With both test water temperature and environment temperature functions. It can be widely used in water treatment industry,drinking water industry,household,personal home travel and field operations etc as the drinking water quality inspection tool. Measuring Range:  TDS: 0 - 9990 ppm (parts per million)  Conductivity: 0 - 9990 µs/cm Degrees Celsius: 0.1 -


Digital PH Meter 0.01 PH High Accuracy Water Quality Tester 0-14 PH Measurement Range for Drinking Water Aquarium
Digital PH Meter 0.01 PH High Accuracy Water Quality Tester 0-14 PH Measurement Range for Drinking Water Aquarium
By dianpo
In Stock
$12.26

mpn: f58795our02097, ean: 0019009340888,

4.9 out of 5 stars with 144 reviews
FeaturesDigital PH Meter 0.01 PH High Accuracy Water Quality Tester 0-14 PH Measurement Range.Precision ph accuracy,tester has a sensitive electrode sensor to read accurate pH levels.Just remove the protective cap and immerse the PH meter electrode in the solution and press the button to be measured.Appropriate for wide range of applications,for testing pH balance of drinking water, pool, aquarium, RO system, Spa.Fast And Accurate,ensure your pool, general hydroponics ph or even drinking water


Digital LCD TDS Tap Water Quality Meter Tester Filter Purity Pen Stick PPM
Digital LCD TDS Tap Water Quality Meter Tester Filter Purity Pen Stick PPM
By Thailand
In Stock
$41.86
4.3 out of 5 stars with 14 reviews
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Danner 02399 Floating Pond Thermometer
Danner 02399 Floating Pond Thermometer
By Danner
In Stock
$5.99

mpn: 02399, ean: 0025033023994,

4.9 out of 5 stars with 109 reviews
Monitor the temperature in your water feature with this easy to use floating pond thermometer. It is easy to read, calibrated in both degree fahrenheit and degree celsius. Included tether helps bring unit to waterside. For use in all outdoor pond and water garden features.Floating pond thermometer. Monitor the temperature in your water feature with this easy to use floating pond thermometer. It is easy to read, calibrated in both degree fahrenheit and degree celsius.


Professional 3 in 1 Drinking Water quality Analyzer pH Monitor TDS PH Meter for Aquarium Acidometer TDS/PH/TEMP Measurement Tool
Professional 3 in 1 Drinking Water quality Analyzer pH Monitor TDS PH Meter for Aquarium Acidometer TDS/PH/TEMP Measurement Tool
By YARUIFANSEN
In Stock
$65.00

mpn: PH-986,

4.2 out of 5 stars with 105 reviews
feature: Use to measure the PH & TDS & TEMP of solution. Electrode probe can be replaced, ATC function. Easy calibration of pH and TDS with just a mini-screwdriver. Large and clear LCD with backlight, easy to read and accurately measuring functions. Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems.Automatic temperature compensation. specification: Temperature: ±1degrees (±2Fahrenheit) Temperature Compensation: 0°C ~ 50°C (32°F ~ 122°F Working


MonkeyJack Digital Pen-Type PH Meter PH009 LCD Water Hydroponics Swimming Pool Tester
MonkeyJack Digital Pen-Type PH Meter PH009 LCD Water Hydroponics Swimming Pool Tester
By MonkeyJack
In Stock
$11.99

mpn: d1be39d4ada29ec419e4d4793f6591e1, ean: 0651814736618,

4.4 out of 5 stars with 146 reviews
Description: - 100% brand new and high quality - This digital pen style pH meter is a perfect instrument for aquarium, fishing industry, swimming pool, school laboratory, food & beverage etc - Display: LCD Digital - Probe Type: Precision glass bulb electrode - Accuracy: ±0.2PH ±0.1PH(20℃) - Resolution: 0.1PH - Operating Temperature: 0~50°C - Measuring Range: 0.00~14.00PH - Power Supply: 3*1.5V Batteries(Not included!!!)Specification: - Material: Plastic - Size(L x W x H): 142 x 29 x


AOXIANG LED Shower Water Thermometer, LED Display Home Water Shower Thermometer Flow Self-Generating Electricity Water Temperture Meter Monitor Energy Smart Meter for Baby Care
AOXIANG LED Shower Water Thermometer, LED Display Home Water Shower Thermometer Flow Self-Generating Electricity Water Temperture Meter Monitor Energy Smart Meter for Baby Care
By AOXIANG
In Stock
$14.77

ean: 8670398459104,

4.4 out of 5 stars with 110 reviews
Main Features: - This thermometer monitors the shower temperature in real time. - The built-in small-scale hydropower system makes it generate currents without any battery. After turning off the water, it'll turn off current automatically. - The high-precision temperature sensor provides accuracy, the error is only +/- 0.5 Deg.C (+/- 1 Deg.F). - 360 degree rotatable water-resistant LED screen for better viewing. - Compatible with most of the shower equipment, easy to install without any tool


Vovomay PH CL2 Chlorine Level Meter Water Quality Tester, Test Monitor Swimming Pool Spa
Vovomay PH CL2 Chlorine Level Meter Water Quality Tester, Test Monitor Swimming Pool Spa
By Vovomay
In Stock
$21.99

ean: 0716451417884,

4.0 out of 5 stars with 127 reviews
PH CL2 Chlorine Level Meter Water Quality Tester Test Monitor Swimming Pool SpaFeature:100% brand new and high quality.Quite an essential tool for swimming pool and spaIdeal for simple operations to test water PH and CL2, no more chemicals or no more guess workLarge screen shows the test result on both PH and Chlorine level for easy readingNo chemical agent needed, easy to use itEasy to use and obtain result instantly and accuratelyRecommended Chlorine Level for pools and spas is 1.2 to 1.7


Floating Thermometer Swimming Pool Hot Tub Thermometers TemperatureTester Meter Controller
Floating Thermometer Swimming Pool Hot Tub Thermometers TemperatureTester Meter Controller
By Single Mom
In Stock
$15.05

mpn: Tools18B-XB0604, ean: 0705833606329,

4.8 out of 5 stars with 103 reviews
Description: This Floating Thermometer is the perfect and easy way to tell the temperature of the water in your pool, hot tub and so on. The thermometer features an easy to read display in both ° and ° (-20~120° & -30~50°) and comes with a tie off tether string so no worries about it floating away from the edge. Shatter resistant plastic body and tie rope make it easy to find. Features: Premium quality, Built from Durable Material & Shatter Resistant. Measures pool and spa water temperature


5 in 1 Water Testing Meter Multi-Parameter Water Quality Monitor Water Quality Analysis Device PH-117
5 in 1 Water Testing Meter Multi-Parameter Water Quality Monitor Water Quality Analysis Device PH-117
By YARUIFANSEN
In Stock
$139.00

ean: 0641055913626,

4.3 out of 5 stars with 19 reviews
Features: Use to measure the PH / Temperature / EC / CF / TDS of solution. Easy calibration of pH and TDS with just a mini-screwdriver. Can online monitoring for a long time. Can work continuously more than 10 hours of power outage or outdoor without power after charging the battery for 3 hours. Clear LCD with backlight. Apply in water sources, aquarium, hydroponics, spas, swimming pools and other water systems. Automatic temperature compensation. CE Certificated to Offer Safer and Precise


Digital PH Meter Water Hydroponics Pocket Pen Tester Aquarium Pond Pool Test New
Digital PH Meter Water Hydroponics Pocket Pen Tester Aquarium Pond Pool Test New
By Oregon Tools
In Stock
$17.23

ean: 0739328631527,

4.8 out of 5 stars with 24 reviews
The digital Ph meter is a great use for home and laboratory like testing water, pools, hydroponics, food and more with a large measuring range. It will stable out for a quick and accurate reading. It comes in a small screwdriver and 2 packets of calibrating solution for calibrating the meter. You could carry the compact unit wherever you go conveniently. Features: Measuring range from 0.0pH to 14.0pH Widely used for household, laboratory, testing pH balance of drinking water, pool, aquarium and



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