Best Digital Phase Tester - TopShopReview.com

Sper Scientific 860040 Turbidity Meter

✅High Accuracy&One-Button Lock Reading Function - With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response.One-button lock reading function helps lock reading even if the tester is taken out of the sample!.
✅Automatic Calibration - The digital ph meter for water uses a 3-point AUTOMATIC calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18 to ensure the accuracy of your measurements..
✅Automatic Temperature Compensation - No longer need to pay attention to the temperature of testing liquid, Allprettyall ph tester digital can accurately determine the pH value of the sample in the temperature range of 0 °C-60 °C (32 °F-140 °F), so as to solve the inaccurate problem caused by changing the liquid temperature..
✅Wide Application-Allprettyall water quality tester designed in pH and temperature can be measured simultaneously with high precision. Omni-directional measurement of water quality to ensure the health of water quality! The ph meter digital water tester is ideal for drinking water,daily household,hydroponics,sewage, lab teaching and ANY water sample..

Check Stock

Automotive Relay Tester 12V Auto Relay Diagnostic Tool Battery Checker Small Relay Tester with Clips

Easy To Use - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal.
if the red LED light is on, the relay is abnormal..
To Operate - First, clip the alligator clip of the tester to the car battery, the black clip on the negative pole, and the red clip on the positive pole. When the red LED light is on, it means the tester can start the test. Check the relay before testing. Select the appropriate socket according to the pins, insert the relay into sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay..
Fitment - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. The car battery must be a 12V battery, and the battery voltage must be between 11V-15V.
2. The applicable coil resistance is preferably above 20 ohms..
Compact - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows easy use no matter where you are..
Simple and Quick - With our patented design this relay tester will give you the ....

Check Stock

Alcohol Breathalyzer Portable Breath Tester LCD Display Digital Alcohol Test Detector Breath Alcohol Analyser Tester Breathalyser Lie Detector Blue Color ABS Material

>>>[Function]: Breathalyzer Keychain Digital Alcohol Tester Detector is used to measure the alcohol concentration in the human body. This portable breath tester uses a sensitive semiconductor sensor that can quickly give results to judge whether you can drive..
>>>[Fashionable Keychain Design]: Breath Analyzer saves space and is light in weight. It is easy to hold and carry. The pocket size allows you to carry it anytime, anywhere to ensure safe driving after drinking..
>>>【High precision and sensitivity】: This alcohol breath tester can be used to measure the alcohol concentration in the human body. Built-in sensitive semiconductor sensor, detection range: 0.00-0.19% BAC 0.0-1.9g/l (or 0.00-0.95mg/l BRAC). It can quickly give results within 3-5 seconds to judge whether you can drive, and provide you with high-precision test results. (The error is less than 0.01% BAC).
>>>[Large Digital LCD Screen]: Digital LCD Screen Alcohol Breath Tester uses a large LCD screen, which can clearly display....

Check Stock

DIYmall HJ Digital RC Servo Tester ESC Consistency Tester Speed Controller for RC Helicopter Airplane Car Motor Throttle Display

1 X HJ Digital Servo Tester / ESC Consistency Tester.
4CH tester servo: It can control 4 servos at the same time.
50H analog servo signal cycle 20us frequency 50Hz,125H digital the steering gear a signal cycle 8us frequency 125Hz.
250H Digital Servo signal cycle 4us frequency 250Hz.

Check Stock

YINMIK pH Salt ORP Tester, Digital pH Meter for Aquarium, 7 in 1 pH TDS EC Salt ORP S.G Temp Pool Salt Tester for Spa,Hot Tub,Home Brewing,pH ppm EC Meter for Hydroponics,ORP Meter for Drinking Water

[7 in 1 Digital pH TDS EC Meter] YINMIK YK-7 water quality tester can measure pH, TDS, EC, ORP, S.G, Sat and temperature with high precision at the same time which is a convenient and reliable manner for most regular water solutions' testing..
[pH and Salt Meter for Aquarium] Water quality of the fishpond is extremely important. Slight changes in pH, temperature or salinity may lead to serious consequences. YINMIK YK-7 water tester is expert in aquarium, testing pH, temp, salinity, tds. Save money and time for you..
[Salt Tester and pH ORP Meter for Pool&Spa] YINMIK YK-7 digital water quality meter is the ideal measuring instrument for every swimming pool owner who values optimal water quality. The YINMIK water pH tester combines ease of use and reliability with a compact design. It has pH, Temp, ORP and Salt functions, which can meet the daily monitoring of pools, spa, or hot tub..
[Digital pH EC ORP Meter for Hydroponics] Hydroponics is one of the most common applications for pH, TDS/EC meters. YINMIK YK-7 multi-parameter tester is an invaluable tool for measuring how far away your water is from needing mor....

Check Stock

Diode Check

... has a built-in 10 amp circuit breaker, the input current can be reversed to form a loop power supply, and it automatically trips when the current exceeds 20A, protecting the equipment and extending its life..
【Injector Tester & Injector Cleaner】CODIAG GT 101 Power Digital Tester has a DIY injector cleaning adapter kit, which supports DIY cleaning of injectors. When the fuel injector is driven to open and close, and the current shows a normal value, it means that the fuel injector is normal. If it does not move or the current display is abnormal, it means that the injector is damaged. When checking the injector for clogging, it can be cleaned by cleaning the pressurized tank with the injector..
【20ft Test Cord & Color Display & Torch】Car circuit tester with 20ft extension cord, powered by car battery or cigarette lighter, extension cable port extension provides excellent accessibility for testing along the vehicle. With a digital color display, you can clearly read the voltage and current data. Built-in flashlight and LED bi-color light make it easy to work even in dark or low light conditions..

Check Stock

Digital PH Tester for Water- PH Meter High Accuracy Water Quality Tester with ATC, 0.01pH Resolution 3 in 1 PH TDS Temp for Household Drinking Water, Hydroponics, Lab, Aquarium by ORAPXI

✅High Accuracy&One-Button Lock Reading Function - With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response.One-button lock reading function helps lock reading even if the tester is taken out of the sample!.
✅Automatic Calibration - The digital ph meter for water uses a 3-point AUTOMATIC calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18 to ensure the accuracy of your measurements..
✅Automatic Temperature Compensation - No longer need to pay attention to the temperature of testing liquid, Allprettyall ph tester digital can accurately determine the pH value of the sample in the temperature range of 0 °C-60 °C (32 °F-140 °F), so as to solve the inaccurate problem caused by changing the liquid temperature..
✅Wide Application-Allprettyall water quality tester designed in pH and temperature can be measured simultaneously with high precision. Omni-directional measurement of water quality to ensure the health of water quality! The ph meter digital water tester is ideal for drinking water,daily household,hydroponics,sewage, lab teaching and ANY water sample..

Check Stock

BETOOLL Digital Fuel Injection Pressure Tester Kit - Fuel Pressure Gauge 0-300 PSI for Petrol Engine Fuel Pressure Test Kit Automotive Test Tool Kit

Digital Fuel Pressure Gauge: Accurate and clear data is easier to read on the backlight display. The buttons could adjusted to 4 different kinds of numerical units in PSI, KPA, BAR, KG/CM² for use..
Quick Pressure Release Valve: Digital fuel pressure tester is equipped with pressure release valve with transparent hose for safer pressure discharge and fuel recovery..
Accurate & Fast Connection: The coupler at the end of the gauge hose can be quickly connected with most adapters, saving time and improving efficiency..
Precise Measurement: Digital fuel injection pressure tester gauge has 0.5 display resolution instead of normal 5PSI display resolution compression tester. The measurement range is 0-300PSI.
Scope of Application: Fuel pressure tester kit includes adapters, hoses and fittings compatible with all fuel injection systems and most cars and trucks world wide!.

Check Stock

Mizar Et18 RS Electronic Gold Tester by

NEW ADVANCED DIGITAL TESTER - Gemoro AGT3 is the ultimate verification instrument for gold and platinum testing..
STATE-OF-THE-ART AND PORTABLE - Handheld tester has exceptional precision, is simple to use, and identifies digital karat value and gold percentage in seconds.
PATENTED WITH PATENTS PENDING - Tests all karat levels of gold from 6K to 24K and tests for platinum..
STEP-BY-STEP DIRECTIONS – Easy to identify non-gold, gold plate and gold filled in seconds..
INCLUDES – GemOro AGT3 Tester, pen probe, file, battery, AC adaptor and rubberized carrying case..

Check Stock

KETOTEK Digital Water TDS Meter PH Meter PPM Tester has TDS-EC-Temp 3-in-1 and ±2% Accuracy PH Tester with 0-14.00PH and 0.01 Accuracy TDS PH Meters for Aquariums Water Hydroponics RO System

COST-EFFECTIVE PRODUCT PARTNER AND MORE WATER QUALITY INFORMATION CAN BE TESTED. It would be more economical and convenient than purchasing it....
WIDELY USED AND ACCURATE. Digital TDS meter has measurement range 0-9999ppm and ±2% accuracy, TDS meter can also test the liquid temperature in....
AUTO-OFF FUNCTION AND EASY TO USE. Digital TDS meter and digital PH meter both have the function of Auto-off, it will automatically shut off after 5....
AUTOMATIC TEMPERATURE COMPENSATION ( ATC ). Digital TDS tester and PH tester both have the function of ATC, the measuring data won’t be influenced....
SMALL SIZE AND POCKET PORTABLE. TDS tester and PH tester have small size and low weight as a pen, they are easy to be carried, and convenient for you....

Check Stock

Gold Testing Stone, Genuine, Natural Obsidian (6\ x 3\)

NEW ADVANCED DIGITAL TESTER - Gemoro AGT3 is the ultimate verification instrument for gold and platinum testing..
STATE-OF-THE-ART AND PORTABLE - Handheld tester has exceptional precision, is simple to use, and identifies digital karat value and gold percentage in seconds.
PATENTED WITH PATENTS PENDING - Tests all karat levels of gold from 6K to 24K and tests for platinum..
STEP-BY-STEP DIRECTIONS – Easy to identify non-gold, gold plate and gold filled in seconds..
INCLUDES – GemOro AGT3 Tester, pen probe, file, battery, AC adaptor and rubberized carrying case..

Check Stock

PM2302 Digital Resistance Meter Ground Earth Tester 0-4K ohm Insulation Tester Multimeter with LCD Backlight Display

[Multi Functions] This PM2302 resistance tester can be used to measure maximum, minimum or average and measure relatively.
low battery indication and 2 Pole and 3 Pole Mode..
[Convenient] This insulation tester can store 100 group of test result, which will not be lost even in case of power cuts..
[Easy reading] This digital resistance tester is equipped with large digital LCD and backlights that allow users read the information on LCD easily. Digital Display & Analog Bars Display..
[Auto power-off function] It has auto power-off function that conserves battery life and increases the lifespan of your multimeter..
[Application] It is the ideal tool for electrical inspection and repair..

Check Stock

HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume

NaCl calibration solution, available in 342 ppm or 1000 ppm.
Comes in lightweight HDPE plastic bottles.
Use the HM Digital TDS Calibration Solution (342 PPM) to periodically re-calibrate your HM Digital TDS meter or HM Digital Water Quality Tester.
This HM Digital TDS Calibration Solution is also known as Water Tester Solution andTDS Meter Calibration Solution.

Check Stock