Best Digital Portable Hardness Tester

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....

★ HIGH PRECISON, SENSITIVE RESPIRATORY. ketosis monitor is used to measure the concentration of ketone substances in the human body.The portable....
★ ENERGY SAVING, automatic shutdown function.Powered by a 2 x AAA 1.5v battery (not included but generally available), this acetone tester will....
★ LARGE DIGITAL LCD SCREEN .The acetone tester has a large screen with an orange background.Backlighting allows you to use this breathalyzer acetone....
★ COMPACT DESIGN.This breathalyzer is small in size, light in weight and easy to carry.You can hang the acetone tester on the keychain when you're....
★ 30 DAYS MONEY BACK GUARANTEE,LIFETIME WARRANTY. GREENWON has 20 years of experience in the production of respiratory tester, in the respiratory....

Portable indentation hardness tester. Single hand operation.
Easy conversion. The test results can be converted to HB, HR,HV and HW easily through conversion table..
High sensitivity. Featured with 100 scales, much more sensitive than Webster hardness testers applied in aluminum alloys industry..
Wide valid testing range equivalent to Brinell hardness 25-150HBW..
Barcol Impressor is mainly applied to test aluminum and aluminum alloys..

Support up to HD TVI video surveillance testing, support 1MP, 2MP, 3MP, 4MP, 5MP. When TVI signal input, the tester will display HD TVI camera image..
Portable multi-functions CCTV tester with 5 inch TFT-LCD Screen(Not touch screen), 800*480 resolution, make your job more easily with this professional CCTV tester..
The CCTV tester builts in 18650 2600mA battery, after charging 3-4 hours, working time lasts 11 hours, long standby time. Small body, portable and easier to carry..
This camera tester also features a multi-purpose testing unit that includes built-in PTZ tester/controller, UTP cable test, audio surveillance test, and power output..
Support VGA/HDMI 1.1 Compliant Digital input, can be used for debugging DVR/NVR recorder, also can be a display..

[Self-testing Bad Breath Dating Artifact]The Odor breath tester is specially designed to check people's breath quality. It adopts semiconductor gas....
[LCD Cartoon Indication]Odor breath tester with Digital LCD and cartoon indication with background light. It will show the final testing result in....
[EASY TO USE]Just insert 2 included AAA batteries, power on your Odor breath tester and wait for 9 seconds for warm-up, then blow into the tester for....
[PORTABLE]The Bad breath detector is small and lightweight. It weights 0.2Kg and size 84.5 x 40 x 18.5(mm). Easily fits in your bags and pockets,....
[Smart Energy Saving]The Bad Breath tester will automatically shut off to save power after finishing the test for 5 seconds and powered by 2AAA....

⭐【2 in 1 Oscilloscope & Transistor Tester】--- This portable digital oscilloscope combines an electronic component tester, PWM signal generator, and other functions into one."Oscilloscope" mode to test the signal waveform of the circuit while"Mos Test" mode can test various types of transistors and can identify device type, pin polarity, hFE, turn-on voltage, junction capacitance, resistance, inductance components and etc. More cost-effective to use, more test functions to choose from..
⭐【High-precision & Real-time Display】--- The oscilloscope has a real-time sampling rate of 2.5MS/s and a 200kHz bandwidth. Up to ±400V voltage signal can be measured. Self-contained 80Khz/5.0V PWM wave test signal source with adjustable duty cycle. With a Single, Normal, Automatic trigger, it can be used for both periodic and aperiodic digital signals. Other modes include circuit continuity test, 0-16V input voltage measure, PWM output, 0-24V Zener diode measure and etc..
⭐【2.4 Inch TFT Screen & 1500mah Rechargeable Battery】--- The transistor tester adopts a built-in 1500 mah battery that will get fully charged within 1-2 hours via a 5V/2A adapter and can work for 4 hours(Finish Green Indicator/Charging Red Indicator). The digital handheld pocket oscil....

... 【Comprehensive Information Display】Simply immerse the tds meter electrode in the solution to be tested, readings are quickly displayed on a large LCD display. Water tester pen multi-parameter display at the same time, mobile phone APP control backlight display.Tds meter mini size,Lightweight and portable size allows you to take it around easily in your pocket and do your measuring anywhere..
【Cloud-Based Data System】pH meter for water accurate real-time Bluetooth data transmission and clear measured values make it easy for you to save, manage and share water ph tester of test data without worrying about lab ph meters data loss.It can be used as a classic water tester even if ph tester is not connected to a smartphone..

Can be used with 8902-0150 Hardness tester and most other imported Hardness testers.
Each block is marked with the specific measured value..
Supplied with a calibration certificate from the factory..

【Application】Advanced semiconductor oxide alcohol sensor is a simple method to analyze the concentration of Alcohol in the blood in any time and....
【Environment and healthful】LED Screen Lie Detector Breath Tester blowing design with five mouthpieces for multiple users, which guarantee the use....
【Easy to carry】Devicelcd Screen Alcohol Analyzer comes with keychain designis, tiny volume and easy to carry..
【High sensitivity】The Digital Alcohol Breath Analyzer is highly sensitive.The Accuracy: 0.01% BAC (0.1g / L) for your convenience..
【LCD display】LCD display of the portable digital breath alcohol tester gives you clearer view and digital alcohol automatically gives you for....