Halo Grow Box

Test Kits & Thermometers - Blowout Sale! Save up to 57%


Blowout Sale! Up to 57% off on Test Kits & Thermometers at Halo Grow Box. Top brands include Kokido, Thailand, HM Digital, Water Safe, GC Global Direct, Ambient Weather, Gain Express, Vitam Amo, Sunshinehomely, Finlon, TekcoPlus, YINMIK, Balleen.E, Aosay, OscenLife, Yuntra, Daugee, Generic, & GuDoQi. Hurry! Limited time offers. Offers valid only while supplies last.



Kokido K608 Jumbo Float Thermometer for Swimming Pools
Kokido K608 Jumbo Float Thermometer for Swimming Pools
By Kokido
In Stock
$18.60

mpn: K608CBX/F, ean: 0844268007292,

4.9 out of 5 stars with 116 reviews
The jumbo float thermometer is a jumbo size which makes it easy to read even without taking it out of the water. A Nylon cord comes with it for fastening the thermometer to the pools edge, it also floats on the pool surface. Measures in Fahrenheit.Ju...


Water Quality PH/CL2 Chlorine Tester Level Meter PH Tester
Water Quality PH/CL2 Chlorine Tester Level Meter PH Tester
By Thailand
In Stock
$60.09
$55.75
You Save: 7%
4.3 out of 5 stars with 84 reviews
Description : Water Quality PH/CL2 Chlorine Tester Level Meter PH Tester for Swimming Pool Spa It's hard to know the PH value and the chlorine level just by looking at the color of the test paper, because the color cannot be identified easily just b...


HM Digital COM-100 + 342 ppm / 700 us, TDS/EC/Meter/Tester/Solution Combo
HM Digital COM-100 + 342 ppm / 700 us, TDS/EC/Meter/Tester/Solution Combo
By HM Digital
In Stock
$65.97

mpn: 4316344583, ean: 0647608367755,

4.5 out of 5 stars with 7 reviews
HM DIGITAL COM-100 Waterproof EC/TDS/Temp Combo Meter + 342ppm /700 us 90 ml solution (please check out the matching PH-200 pH meter) - Authorized Distributor - Brand New Meter with 1-Year USA Manufacturer Warranty! FEATURES Measures electrical condu...


3x Watersafe WS-207 Lead in Home Tap Drinking Water Test Kit, Single Use per package.
3x Watersafe WS-207 Lead in Home Tap Drinking Water Test Kit, Single Use per package.
By Water Safe
In Stock
$27.16

mpn: 4336416472, ean: 0647608368127,

4.7 out of 5 stars with 52 reviews
Lot of 3 Watersafe WS-207 Lead in Drinking Water Test Kit, Good for 3 water sample testing. *** All Watersafe test kits are for single use only, please buy two kits if you need to test two water samples. The WaterSafe Lead in Water Test Kit makes tes...


GC Global Direct 6 in 1 Water Testing Meter
GC Global Direct 6 in 1 Water Testing Meter
By GC Global Direct
In Stock
$199.99
$104.99
You Save: 48%

ean: 0616913682204,

4.0 out of 5 stars with 7 reviews
Great for Hydroponics Gardeners or Aquarium Enthusiasts, Non-technical and Technical Personnel alike!! The Six-in-one Meter can be used to constantly monitor the Temperature, PH, TDS in a wide range of applications including nutrient solution for hy...


Ambient Weather WS-14-2 Dual Zone Wireless 8-Channel Floating Pool and Spa Thermometer
Ambient Weather WS-14-2 Dual Zone Wireless 8-Channel Floating Pool and Spa Thermometer
By Ambient Weather
In Stock
$51.50

mpn: WS-14-2, ean: 0816982014023,

4.5 out of 5 stars with 12 reviews
Additional Features: The WS-14 includes one remote, and seven additional sensors can be added (F007T, F007TP and F007PF). Each remote sensor includes dip switches for channel selection and units of measure (degF vs degC). Ideal for Pool and Spa app...


Gain Express Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems
Gain Express Digital LCD EC Conductivity Meter Tester 0~19.99ms/cm Pen Type with Backlight, Hydroponics, Aquaculture, Water Systems
By Gain Express
In Stock
$14.90

mpn: ECM-227, ean: 0600316548328,

4.1 out of 5 stars with 63 reviews
This Compact, portable pen type Conductivity meter measures the electrical conductivity in a solution, it test the quality of water. It is commonly used in hydroponics, aquaculture and freshwater systems to monitor the amount of nutrients, salts ...


Vitam Amo TDS EC Temperature Meter Digital Water Tester with Backlit LCD, Accurate Professional Testing Ideal for Drinking Water, Hydroponics, Swimming Pools, Aquariums, 0-9990 ppm, 2% Accuracy
Vitam Amo TDS EC Temperature Meter Digital Water Tester with Backlit LCD, Accurate Professional Testing Ideal for Drinking Water, Hydroponics, Swimming Pools, Aquariums, 0-9990 ppm, 2% Accuracy
By Vitam Amo
In Stock
$29.99
$12.99
You Save: 57%

mpn: TDS001, ean: 0600607623925,

4.3 out of 5 stars with 73 reviews
Questions about the filter?The TDS meter offers you a current idea of TDS conditions and the effectiveness of what's going on with filters or other reverse osmosis systems. With this water tester, you will be very aware of the quality of water at ho...


Sunshinehomely Pool Water Quality Detector, PH CL2 Chlorine Level Meter Water Quality Tester Monitor for Swimming Spa
Sunshinehomely Pool Water Quality Detector, PH CL2 Chlorine Level Meter Water Quality Tester Monitor for Swimming Spa
By Sunshinehomely
In Stock
$18.99

ean: 0716451083348,

4.6 out of 5 stars with 11 reviews
Specification: ♥Quite an essential tool for swimming pool and spa ♥Ideal for simple operations to test water PH and CL2, no more chemicals or no more guess work ♥Large screen shows the test result on both PH and Chlorine level for easy reading ...


Finlon PH Meter Digital Water Quality Tester Water Quality Checker for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement Measuring Range 7.2-7.8,Accuracy 0.01
Finlon PH Meter Digital Water Quality Tester Water Quality Checker for Household Drinking Water, Swimming Pools, Aquariums, Hydroponics, pH Measurement Measuring Range 7.2-7.8,Accuracy 0.01
By Finlon
In Stock
$24.26

ean: 0190891320322,

4.3 out of 5 stars with 14 reviews
FeaturesMade of premium plastic shell, large display, durable and practicalNo more traditional chemicals needs, simply operateGreat for home and laboratory ph testing applications including household drinking water, aquariums, swimming pools, tap wat...


Digital Salinity Salt Water Quality Meter Tester Checker Water Pool and Koi Fish Pond, Hydroponics, Gardening, Aquariums with Temperature 70ppt Water Quality Tester IP65 Waterproof Rate
Digital Salinity Salt Water Quality Meter Tester Checker Water Pool and Koi Fish Pond, Hydroponics, Gardening, Aquariums with Temperature 70ppt Water Quality Tester IP65 Waterproof Rate
By TekcoPlus
In Stock
$37.90
$35.99
You Save: 5%

mpn: SMTK-49, ean: 0713072682868,

4.7 out of 5 stars with 124 reviews
Dual meter is designed to measure the salt content in liquid without the need for conversions. It measures both temperature (ºC/°F) and salinity (ppt) and display simultaneously on its clear LCD. It has an IP65 Rating, waterproof and dustproof hous...


YINMIK TDS Meter Digital Water Tester, TDS EC Temperature Meter 3 in 1, 0-9990 ppm, Digital Water Quality Tester Kit for Swimming Pools, Drinking Water, Aquariums, Hydroponics
YINMIK TDS Meter Digital Water Tester, TDS EC Temperature Meter 3 in 1, 0-9990 ppm, Digital Water Quality Tester Kit for Swimming Pools, Drinking Water, Aquariums, Hydroponics
By YINMIK
In Stock
$13.88

ean: 0656699510599,

4.4 out of 5 stars with 55 reviews
YINMIK Professional TDS ppm Meter | Digital Test Pen Combines EC, TDS & Temp (3-in-1)➤ 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 - pp...


Balleen.E Digital PH TDS Test Meter, TDS EC Temperature PH Measurement 4 in 1 Water Quality Texter Meter Set for Household Drinking Water quality, Swimming Pools, Aquariums, Hydroponics
Balleen.E Digital PH TDS Test Meter, TDS EC Temperature PH Measurement 4 in 1 Water Quality Texter Meter Set for Household Drinking Water quality, Swimming Pools, Aquariums, Hydroponics
By Balleen.E
In Stock
$21.16

mpn: balleen.e-ph+tds-US, ean: 0652508419992,

4.6 out of 5 stars with 54 reviews
Water is very important. It is the source of life. Everything in the world can't live without water. The PH, TDS&EC level of water can provide information on potential contamination. This PH, TDS&EC meter set is not only ideal for household or labo...


TDS,TOC,COD - Best Water Quality Test Meter. Large Backlit LCD Screen. Professional TDS Meter at an Economy Price. on This Accurate and Reliable Water Test Meter.
TDS,TOC,COD - Best Water Quality Test Meter. Large Backlit LCD Screen. Professional TDS Meter at an Economy Price. on This Accurate and Reliable Water Test Meter.
By Aosay
In Stock
$79.90

ean: 0676422622931,

4.5 out of 5 stars with 48 reviews
TOC, COD, TDS Water Quality Tester 1.Total organic carbon Detection of bacteria, viruses, microorganisms, humus, chemical pesticides, and harmful substances ect.. 2.Cod Detection of organic matter, nitrite, sulfide, ferrous salt 3.Total dissolved sol...


OscenLife Floating Pool Thermometer of Little Turtle with String for Baby Pool,Outdoor and Indoor Swimming Pools,Hot Tub,Hot Spring,Bathtub and Jacuzzi
OscenLife Floating Pool Thermometer of Little Turtle with String for Baby Pool,Outdoor and Indoor Swimming Pools,Hot Tub,Hot Spring,Bathtub and Jacuzzi
By OscenLife
In Stock
$21.99
$10.99
You Save: 50%

mpn: OscenLife011,

4.4 out of 5 stars with 57 reviews
Little Turtle Thermometer Pools are great fun during the summer, but they also need to be properly cleaned and maintained to keep them safe and sanitary all season. Regular maintenance is tedious and time-consuming, but OscenLife makes it easy with o...


New WaterSafe All-In-One Drinking Water Bacteria Lead Pesticides Test Tester Testing Kit
New WaterSafe All-In-One Drinking Water Bacteria Lead Pesticides Test Tester Testing Kit
By Yuntra
In Stock
$27.28
$26.53
You Save: 3%

mpn: 4332686380, ean: 0804200156747,

4.3 out of 5 stars with 51 reviews
It has been brought to our attention that some other sellers may be selling expired test kits. Your test kit is GUARANTEED to be fresh, with an expiration date well in the future This simple, affordable one-of-a-kind kit tests for (Bacteria, Lead, Pe...


Digital TDS PH Meter, Daugee Water Quality Tester with Carrying case for Household drinking water, Aquarium Pool, Swimming Pools 0-9990 ppm Measurement Range; 1 PPM Accuracy (Blue)
Digital TDS PH Meter, Daugee Water Quality Tester with Carrying case for Household drinking water, Aquarium Pool, Swimming Pools 0-9990 ppm Measurement Range; 1 PPM Accuracy (Blue)
By Daugee
In Stock
$10.99

ean: 0748966668215,

4.3 out of 5 stars with 63 reviews
This advanced digital ppm meter pen with Advanced Microprocessor Technology, combines TDS Meter(Total Dissolved Solids), EC Meter(Electrical Conductivity) and Temperature meter all in one ergonomically designed pen. Widely be used for all Water Qual...


HM Digital TDS-4TM + 1382 ppm Solution, TDS Meter/Tester/Water Quality Purity
HM Digital TDS-4TM + 1382 ppm Solution, TDS Meter/Tester/Water Quality Purity
By HM Digital
In Stock
$18.98

mpn: 4336416514,

4.4 out of 5 stars with 61 reviews
HM DIGITAL TDS-4TM TDS/Temp METER + One 20ml 1382ppm TDS/KCl calibration solution. FEATURES The smallest and lightest TDS meter on the market. Includes an internal digital thermometer (Celsius). Sleek design is perfect for personal or consumer use. A...


Portable Water Quality PH/CL2 Chlorine Tester Level Meter PH Tester for Swimming Pool
Portable Water Quality PH/CL2 Chlorine Tester Level Meter PH Tester for Swimming Pool
By Generic
In Stock
$59.00

mpn: H7RC1011094, ean: 6925865426755,

4.7 out of 5 stars with 104 reviews
Features: Power supply: 1 x AA battery (not included) Item size: 7.09 x 4.57 x1.22 in Item weight: 5.75oz Package size:11.81 x 7.87 x 1.77in Package weight: 8.65oz What is in the box: 1 * Water PH/CL2 TesterQuite an essential tool for swimmin...


GuDoQi 3 in 1 Water Quality Tester Professional TDS EC Meter Water Hardness Purity Temperature Tester for Household Drinking Water Hydroponics Aquariums Swimming Pools
GuDoQi 3 in 1 Water Quality Tester Professional TDS EC Meter Water Hardness Purity Temperature Tester for Household Drinking Water Hydroponics Aquariums Swimming Pools
By GuDoQi
In Stock
$14.63

mpn: CE1323, ean: 0711531598606,

4.4 out of 5 stars with 15 reviews
Note: 1. Press "SHIFT" once for TDS & EC transformations 2. Press ''HOLD'' button for maintaining reading 3. Press "SHIFT" twice for "° C / ° F" transformations 4. The EC unit of this product is μs / cm. The range of EC measurements is 0-9990 ...



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