Best Mineral Tester Pen Reviews & Alternatives

A mineral tester pen can be a great investment for those who want to simplify their work needs. With the increase in standing desk popularity, many people looking for the best mineral tester pen feel overwhelmed by the wide range of options available. From traditional mineral tester pen  to convertible models, the dizzying slew of choices might make you feel the need to take advantage

What are the features that make the best mineral tester pen? These compact and convenient mineral tester pen are easy to install and easy to use at the same time. And then there’s the price! Below, we’ll run through the average mineral tester pen cost of some of the most popular types, so you can get a good idea of where to start with your budget.

The reasons you should trust us

We recommend products in each review using an intensive research process, spending hours combing through the best available models on Amazon. For a product to make our list of top picks, it must hold a solid sales record on Amazon, have consistently positive customer reviews, and offer unique features, among other factors. After narrowing down our recommendations, we conduct additional research to ensure that the products meet our standards. Once we conclude the research phase, we craft a well-rounded, user-friendly article that includes our recommended products and additional information to help homeowners like you make the right purchase. The following key factors are considered when analyzing:

  • The quality of mineral tester pen
  • Each product’s design
  • How it’s built
  • Price comparison
  • How durable [replace-keyword] is
  • Features
  • Cost-effectiveness
  • Versatility
  • Product usability
  • The functionality of the mineral tester pen
  • Performance of the products
  • Product dimensions and weight
  • Return policy and warranty, and more.

Best mineral tester pen & Features

1. Divolight [pH and TDS & EC Tester kit] pH Meter Digital Accuracy 0.01 Lab Pen Type and 3-in-1 TDS and EC Meter, PPM and µS Meter for Water, Practical Water Testing Kit pH and TDS EC Meter Combo

Features :

  • [Why do you need pH and DTS & EC meters] – it is a tool to improve your quality of life. these testers can be used to test drinking water, swimming pools, fish tanks, RO systems, or hydroponic water. Any environment that requires testing of water can use these testers to get accurate data. You have to be safe because water can be life, but can be dangerous.
  • [Test your water with this TDS and EC meter] – Is your water pure and drinkable? With the push of a button, the TDS water quality tester will tell you your overall water purity level, which will be displayed on the screen in ppm. Our pen can quickly display the conductivity level of water (Conducts Electricity (EC)) also; it means the dissolved minerals (ions) in water are what conduct the electricity. Finally, you will know the level of pollution and mineralization of water.
  • [Automatic temperature compensation] – There is no need to worry about the temperature of the test liquid affecting the measurement results, as both the pH meter and TDS meter have an automatic temperature compensation function that adjusts to the water temperature
  • [pH tester] Full measurement range of pH 0 – 14, reliable and quick readings. How to calibrate pH pen – Press CAL key for 5 seconds to enter calibration mode, then press to select 6.86, 4.00, 9.18 corresponding powder to finish calibration, pH pen electrode is easily affected by the environment, if not used often, calibration before use will get accurate measurement results, regular use will keep the accuracy of measurement
  • [Great for all home and laboratory] TDS & & EC and pH testing applications including drinking water, cooking water, aquariums, swimming pools, hydroponic, etc… Not necessary anymore to compare color strips. It’s digital reality.

Additional Info :

2. TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing

Features :

  • ★【FAST AND ACCURATE READINGS】– Just turn it on, dip in liquid and read display, no need to work with color charts or test strips; Large digital display makes it easy to read.
  • ★【AUTOMATIC CALIBRATION】– No need any adjustment screwdrivers, just finish the calibration with Auto calibration with 3-5 seconds.
  • ★【PORTABLE DESIGN】– Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere.
  • ★【WIDE APPLICATION】– Ideal for home and laboratory TDS testing applications, including drinking water, swimming pools, aquariums, hydroponics, etc.
  • ★【100% QUALITY WARRANTY】 — We supply Quality Warranty more than 6 months. If your TDS Pen was broken or you got a defective, please don`t hesitate contact our customer service team, they will serve you enthusiastically.

Additional Info :

Color Bule

3. HMKIS Diamond Tester Pen, High Accuracy Jewelry Diamond Tester+ 60X Mini LED Magnifying, Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter

Features :

  • [Easy to Use]: Real Diamond will Emits sounds and lights >=9.
  • [Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights <9.
  • [fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds.
  • [Magnification]: 60X led Magnification with batteries ( Small microscope ). For Gems, Coins, Antiques, Stamps, Reading, Inspection etc.
  • [Note]: Please ensure that the battery temperature is higher than 10 ℃, can not test metal, save power

Additional Info :

Color Diamond Tester+ Magnifier
Item Dimensions
Height 1.37795
Width 2.16535
Length 10.15746
Weight 0.2645547144

4. High Accuracy Diamond Tester Professional Diamond Tester Pen Jeweler Tool for Novice and Expert – Diamond Selector II 9V Battery Included(Black Diamond Testers)

Features :

  • [Fast and safe ]:Professional Diamond Selector II will indicate genuine diamond or fake.It is designed for quick, precise, and safe diamond testing.
  • [Intuitive Design]:LCD display & LED indicator.Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings.
  • [Simple to Use]:Hqdz Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector; place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep.
  • [Package include]:Diamond tester is battery powered for convenience.Requires 1 standard 9v battery, which is included.Package include:1 x Diamond Tester,1 x Leather Pouch Case,1 x Testing Platform,1 x User Manual,1 x DC 9V battery.

Additional Info :

Color Black
Item Dimensions
Height 4
Width 1
Length 1.2
Weight 0.33

5. WUBEN E19 UV Pen Light Flashlight 365nm Professional Black Light Detector for Rocks and Mineral Glowing, Fluorescent dye, A/C Leak Detecting, IP68 Water Resistant, 2 AAA Batteries Included (Black)

Features :

  • 【365nm Black Light】WUBEN E19 UV flashlight utilizes a 365nm LED, which of the emission of visible light will not interfere with the performance of the product. Specially designed as a professional detector flashlight for forensics and law enforcement, also great for pets Urine, Fluorescent detection or other daily use.
  • 【Easy Power Source】It’s powered by 2 pcs AAA batteries (included), which is easily available. The max runtime is up to 8 hours, last very long.
  • 【Waterproof and Durable】WUBEN P26 flashlight is IP68 rating waterproof, works well 2 meters underwater for 1 hour, also suitable for heavy rain work or other extreme conditions. It’s made of hard anodizing aircraft grade aluminum alloy, very durable for use.
  • 【Easy to Operate and Carry】This UV pen light utilizes a solid plastic tail switch, easier to push than common silica gel switch. With curved line body and lozenge pattern, it allows you operate with one hand, free your other hand to work. With the weight of 1.55oz(battery included) and the removable pocket clip, it is very portable and convenient to carry on your pocket, ballet, tactical bags, etc.
  • 【What you get】All WUBEN flashlights come with free return within 30 days, free repairing within 1 year, manufacturer’s Warranty within 5 Years and 24*7 hours customer service. Package includes: 1 x E19 UV light, 2 x AAA Alkaline battery, 2 x backup waterproof O ring, 1 x user manual and warranty card.

Additional Info :

Color Black
Item Dimensions
Weight 0.096875

6. Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

Features :

  • ✔ACCURATE AND RELIABLE: To achieve high accuracy, equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures.
  • ✔MULTIFUNCTIONAL AND UPGRADED: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use.
  • ✔EASY AND INSTANTLY: 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.
  • ✔MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it’s healthy, monitor if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and spa, etc.
  • ✔3 YEARS WARRANTY. And we offer 90 days Money Back Guarantee if not totally happy with the digital TDS water tester meter.

Additional Info :

Color White
Item Dimensions
Height 0.59
Width 1.14
Length 6.29
Weight 0.10141264052

7. TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More

Features :

  • ✔️【 TEST YOUR WATER】: How Pure is Your Water? With the push of a button, the TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million)
  • ✔️【 EASY TO USE AND ACCURATE】: Just stick it in about 1 inch of water instantly you get the reading. It’s compact and doesn’t need any maintenance. The TDS water tester is a rugged model that includes a protective carrying case with a belt clip
  • ✔️【AUTO-OFF AND HOLD FUNCTION】: The TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording
  • ✔️【MEASUREMENT RANGE】: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking ‘x10’ image
  • ✔️【CUSTOMER SATISFACTION】: We are very proud of our reputation for high-quality products & outstanding customer service, if there’s any question, please kindly feel free to contact us, we are 24 hours online

Additional Info :

Color White
Item Dimensions
Height 0.6
Width 1.1
Length 6.3
Weight 0.15

8. [Upgraded] Diamond Tester Pen, High Accuracy Jewelry Diamond Teste Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone(with Battery)

Features :

  • Professional Diamond Selector II will indicate genuine diamond or fake.
  • It is designed for quick, precise, and safe diamond testing.
  • Portable electronic device for distinguishing real diamonds from other simulated stones.
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction
  • Emits audible sounds to easily differentiate the readings

Additional Info :

Item Dimensions
Height 0.787401574
Width 0.787401574
Length 4.724409444

9. PH Meter for Water 5 in1 TDS/PH/EC/Temp&Salinity Tester Water Testing Kits for Drinking Water,IP67 Waterproof Pool Thermometer with Data Hold Function,for Aquarium,Swimming Pool,Seawater&Koi Fish.

Features :

  • 【💦5-in-1 pH meter】Water tester professional measurement pH, TDS(Solubility), EC(Conductivity), Salinity and Temperature. Water pH tester all-round measurement of water quality to ensure healthy water quality. Digital pool water tester suitable for drinking water, beauty spa, aquaculture, sewage treatment, teaching experiments, medical care,fish tank Koi Fish, Seawater, Aquariums & Marine Monitoring etc.
  • 【💦Three Display Designs for Salinity Test 】PPM + PPT + %. When you want to use this salinity tester,All you need to do is to turn the meter ON and click MODE button to shift to SALINITY function. 1%=10 ppt=10000 ppm, when ppm figure is over 9999ppm, the meter automatically changes to ppt. You don’t have to calculate complex salt content level numbers between different units.The scientific use of salt can effectively prevent osteoporosis, kidney disease, left ventricular hypertrophy, hypertension etc.
  • 【💦Humanized design】IP67 Waterproof lab instruments ,IP67 is the international waterproof and dustproof certification, short-term immersion protection, pool ph meter falling into the water, can be used normally;Automatic shut-off function,If the tds meter has not been used for about 5 minutes, tds meter will automatically turn offfor energy saving saves energy to avoid changing batteries frequently.
  • 【💦Automatic Temperature Compensation】Temperature can affect reading levels, pool thermometer has an even better range of 0 °C-60 °C (32 °F-140 °F), digital pool water tester has automatic temperature compensation can ensure that you are getting the best reading, so as to solve the inaccurate problem caused by changing the liquid temperature.
  • 【💦High Accuracy pH Water Tester】Water Testing Kits For Drinking Water with high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. When the measured value is stable, just press the HOLD/TEMP key to lock the measured value and take it out for viewing,pH meter for food one-button lock reading function .This easy and convenient operation design offers premium experience.

Additional Info :

10. VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

Features :

  • Application: Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools
  • PH Meter: Full measurement range of pH 0 – 14, reliable and quick readings
  • 3-in-1 TDS Meter: Measurement Range 0-9990ppm, 0-9990µs/cm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F; Note: This meter can’t test sea water
  • Features: Comes with protective case; Lightweight, handheld design for portability and convenience
  • Included: PH meter, 3-in-1 TDS meter, 3 calibration buffers

Additional Info :

Color Combo
Item Dimensions
Width 1.22
Length 6.1
Weight 0.220462262

Buying Guide for mineral tester pen

To help you buy the perfect mineral tester pen for your needs and requirements, we have mentioned some of the best mineral tester pen in this article. Not only that, but you can also learn about their differences as we have mentioned their major features and options.

To help you on your way, we’ve listed some questions you may want to consider before making any purchase.

  • Why do I want to buy this?
  • Do I need it or just want it?
  • Am I getting the best deal?
  • How often will I use it?
  • Can I pay cash for it?
  • Is it budgeted for?
  • Can I borrow it?
  • Can I get it used?

Although, if you still want to learn more about these mineral tester pen for buying the perfect one, we are here with a detailed buying guide just for you. Since this buying guide is related to mineral tester pen, you can find many major features and aspects related to mineral tester pen. Thus, you can easily choose the perfect one by going through this article until the end.


The mineral tester pen should last more than one use and hold up against normal wear and tear. We recommend reading the product description before purchasing mineral tester pen to ensure they’ll last a while. Additionally, pay attention to the wash instructions.


When choosing the best mineral tester pen, you must consider its versatility.  It is important to make sure that your unit can be used for performing different tasks.

For instance, if you need to use your unit for other purposes in any other materials, getting the one with a versatile design will be an ideal option for you.


The brand is another crucial factor you must consider while looking for the mineral tester pen.  You will find both well-known and unknown brands in the market. If you are looking for a reliable and durable model, I recommend getting one from a well-known brand.

They use high-quality materials and the latest technology to manufacture their products.  As a result, you will be able to get a durable and long-lasting mineral tester pen.

Ease of Use

While choosing the mineral tester pen, you must ensure that it is easy to use.  It is important to get the one that comes with a user-friendly design.


As a result, you will be able to use your unit for a long time without facing any discomfort.  Also, getting the one that comes with an easy-to-use design will help you save a lot of time and effort.


The price is another essential factor you must consider while looking for the mineral tester pen.  You need to get the one that fits your budget perfectly.

Getting the one that comes at an affordable price will help you save a lot of money.  However, you must ensure that it meets your needs and requirements perfectly.


The mineral tester pen should be easy to carry for you. Therefore, consider the size, style, design, and all the other basic features to check for the actual portability of the device. Portability comes with comfort and ease, and you need to look for all the features to look for a suitable mineral tester pen.


The price of your mineral tester pen will depend upon its features and the overall quality. There are some inexpensive options in the market, but they may not have the best features.

The term ‘budget’ is broader because it completely depends on the user who wants to purchase the mineral tester pen. In this case, you can prepare a list of all the features you want to have in your mineral tester pen. Then, look for the product that comes with these features and works well.

After that, you should carefully check the prices of each air compressor machine on your list. This will give you a precise idea about the budget you need to prepare for the mineral tester pen you should go after.


It is important to consider your unit’s weight while working in congested areas. Getting a lightweight model will be ideal if you need to work regularly in difficult-to-reach places.

However, if portability is not your concern and you are looking for a durable model, you can go for the one with a little heavyweight.


The warranty of mineral tester pen is when the manufacturer offers free repairs or replacements for any damages that occur to the product.

You need to check the warranty of mineral tester pen before buying it, as you don’t want a product that doesn’t come with a warranty.

At the same time, you also need to remember that some mineral tester pen come with a longer warranty than others, so select one with a long warranty if possible.

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