Save big on our app!
Ship to / USD
Country Website
Language
Support Center
  • • One stop service: solve all your problems
  • • Orders Tracking and shipped out notification
  • • More campaigns More discounts
  • • Need help before making an order?
  • • Chat with us in real-time.
  • • For Aftersale issues, just submit a ticket. We will reply within 24 hours.
  • • Multi language service
  • • 24H service
  • All Categories
  • Baby & Kids
  • Consumer Electronics
  • Tablet PC & Accessories
  • Electrical & Tools
  • Automobiles & Motorcycle
  • Appliances
  • Health & Beauty
  • Watches & Jewelry
  • Toys & Hobbies
  • Bags & Shoes
  • Fashion
  • Gaming
  • Mobile Phones
  • Home & Garden
  • Computers & Networking
  • Apparel
  • LED Lights & Flashlights
  • Outdoors & Sports
  • MARKETPLACE
  • Hot Products
  • Surprise Bag

Original Xiaomi Mi TDS Pen

 -  WHITE 138956501

IPX6 Waterproof / Measuring Water Quality Purity Tester

Dispatch: Ships on Nov 22

Discount : 16% OFF
Promo ends in:
Additional Purchase Deal: For any Item Total over 9.99, purchase 1 Special Promo Item for 0.99,1.99, Discounts are automatically applied to your shopping cart before checkout. View Promo >>

Flash Sale Price USD $6.99

125 Pieces left

QTY: - +

WHITE

Color:

to United States  Via Flat Rate Shipping
  • VIDEO
Original Xiaomi Mi TDS Pen Flash Sale

Buy Together & Save:

  • Featured Products
  • Headlights

$9.07 $6.99

Total price:$42.4

You Save:$ 4.14

Final Price:$38.26

Buy Together & Save

  • Related Recommendations
  • Recommended Products for You
  • Customers Who Bought This Item Also Bought
    • Description
    • Product FAQ
    • Customer Reviews
    • Shipping & Payment
    • Wholesale Inquiry

    Original Xiaomi Mi TDS Pen
    Pen which can test the quality of the water, it also determines whether purification is required. Mi TDS Pen reacts to organic compounds, and heavy metals like nickel, chromium etc. and soluble salt content. The pen is IPX6 waterproof and has automatic temperature calibration and precision in measurement.














    Specification

    General

    Brand: Xiaomi
    Special function: Measuring Water Quality Purity
    Product weight: 0.0300 kg
    Package weight: 0.1100 kg
    Product size (L x W x H): 9.00 x 5.00 x 4.00 cm / 3.54 x 1.97 x 1.57 inches
    Package size (L x W x H): 32.00 x 12.00 x 7.00 cm / 12.6 x 4.72 x 2.76 inches
    Package Contents: 1 x TDS Pen

    Get these Essentials for Your Product

      FAQ for Original Xiaomi Mi TDS Pen

      What is the type of battery?

      The TDS pen comes with two AG13 button batteries.

      Can Xiaomi mi TDS pen measures the PH of the water?

      It cannot measure PH.

      How many times can this pen be used?

      There is no limit of using.

      Will the pen clear the smell of water?

      Xiaomi mi TDS pen cannot clear the smell of water.

      Can this pen measures the temperature of water?

      Xiaomi mi TDS pen measures temperature.

      Can mi TDS pen connect to network?

      It cannot connect network.

      Does this have extend interface?

      Mi TDS pen doesn't have extend interface.

      Customer Questions & Answers

      • All (10)
      • Product information (9)
      • Stock status (1)
      • Payment (0)
      • About shipping (0)
      • Others (0)
      • Q

        What model/type of button cell it uses?

        By Paulius Mar-23/2017 08:03:33

        A

        Hello Paulius,
        It is AG13 button cell.

      • Q

        Does it sync results to smartphone?

        By Timo Jan-20/2017 07:01:09

        A

        Hello Timo
        It doesn' supports sync results to smartphone

      • Q

        Hi! It is available on this product unique number? and whether http://www.mi.com/verify official website can check it out? Regards Andrei

        By Andrei Jan-07/2017 02:01:50

        A

        Hello Andrei,

        Thank you for your inquiry.

        It is in stock, Please feel free to make your order.

        Thank you, Let me know if you need any help.

        Have a nice day!


      • Q

        She measures the PH of the water

        By erivaldo Dec-28/2016 07:12:24

        A

        Hello Erivaldo,
        I am sorry to tell you that it can not measure the PH but can measure the TDS.

        Thanks for your attention.

      • Q

        detect mercury

        By jose Dec-15/2016 10:12:30

        A

        Hello jose,

        Thank you for your inquiry.

        Pen which can test the quality of the water, it also determines whether purification is required. Mi TDS Pen reacts to organic compounds, and heavy metals like nickel, chromium etc. and soluble salt content. The pen is IPX6 waterproof and has automatic temperature calibration and precision in measurement.

        Please feel free to contact us if further questions.

        Thank you for your attention.


      • Q

        Does it detect Free chlorine in the water? Thanks

        By Diego Aug-28/2016 04:08:43

        A

        Hello Diego,
        It cannot detect Free chlorine in the water .

      • Q

        Hi, it is in stock?

        By Viktor Nov-29/2015 03:11:12

        A
        Hi Viktor, This item is in stock for immediate shipping now. We hope you enjoy shopping here with us.
      • Q

        what does it test , ppm only or ph and tds as well ?

        By h Aug-31/2015 07:08:03

        A
        Hi H,it is ppm only for TDS. Thank your for your inquiry. Please feel free to ask if you have further questions.
      • Q

        Will it show bacteria content info like ECOLI

        By ajithissac Aug-31/2015 07:08:10

        A
        Hi Ajithissac,it only shows ppm of TDS. The detect range is 0-999. Please kindly watch the video about this item to know further at the link below: https://www.youtube.com/watch?v=AXp7L6j1nkg Thank your for your inquiry. Please feel free to ask if you have further questions.
      • Q

        HI IT IS IN STOCK ?

        By grimaldi.giorgio Aug-25/2015 04:08:36

        A
        Hi grimaldi.giorgio, It is in stock and is available for purchase now. But there are a lot of customers placing order on our website, so it will not be in stock at any time. Thanks for your understanding!
      • Q

        What model/type of button cell it uses?

        By Paulius Mar-23/2017 08:03:33

        A

        Hello Paulius,
        It is AG13 button cell.

      • Q

        Does it sync results to smartphone?

        By Timo Jan-20/2017 07:01:09

        A

        Hello Timo
        It doesn' supports sync results to smartphone

      • Q

        Hi! It is available on this product unique number? and whether http://www.mi.com/verify official website can check it out? Regards Andrei

        By Andrei Jan-07/2017 02:01:50

        A

        Hello Andrei,

        Thank you for your inquiry.

        It is in stock, Please feel free to make your order.

        Thank you, Let me know if you need any help.

        Have a nice day!


      • Q

        She measures the PH of the water

        By erivaldo Dec-28/2016 07:12:24

        A

        Hello Erivaldo,
        I am sorry to tell you that it can not measure the PH but can measure the TDS.

        Thanks for your attention.

      • Q

        detect mercury

        By jose Dec-15/2016 10:12:30

        A

        Hello jose,

        Thank you for your inquiry.

        Pen which can test the quality of the water, it also determines whether purification is required. Mi TDS Pen reacts to organic compounds, and heavy metals like nickel, chromium etc. and soluble salt content. The pen is IPX6 waterproof and has automatic temperature calibration and precision in measurement.

        Please feel free to contact us if further questions.

        Thank you for your attention.


      • Q

        Does it detect Free chlorine in the water? Thanks

        By Diego Aug-28/2016 04:08:43

        A

        Hello Diego,
        It cannot detect Free chlorine in the water .

      • Q

        Hi, it is in stock?

        By Viktor Nov-29/2015 03:11:12

        A
        Hi Viktor, This item is in stock for immediate shipping now. We hope you enjoy shopping here with us.
      • Q

        what does it test , ppm only or ph and tds as well ?

        By h Aug-31/2015 07:08:03

        A
        Hi H,it is ppm only for TDS. Thank your for your inquiry. Please feel free to ask if you have further questions.
      • Q

        Will it show bacteria content info like ECOLI

        By ajithissac Aug-31/2015 07:08:10

        A
        Hi Ajithissac,it only shows ppm of TDS. The detect range is 0-999. Please kindly watch the video about this item to know further at the link below: https://www.youtube.com/watch?v=AXp7L6j1nkg Thank your for your inquiry. Please feel free to ask if you have further questions.
      • Q

        HI IT IS IN STOCK ?

        By grimaldi.giorgio Aug-25/2015 04:08:36

        A
        Hi grimaldi.giorgio, It is in stock and is available for purchase now. But there are a lot of customers placing order on our website, so it will not be in stock at any time. Thanks for your understanding!
      • Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!
      • Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!
      • Be the FIRST to Ask a Question. Want GB Points? Just Write a Review!
      10 Questions & AnswersView All Ask a question

      Customer Reviews

      Overall Customer Rating:

      4.93 Base on 649 Customer Reviews

      Share your thoughts with other customersWrite a review

      • All (649)
      • Photos (429)
      • Videos (158)
      Sort by: Hot
      • Hot
      • Most helpful
      • Most recent
      • Tommaso
        Xiaomi tds
        Pros:
        Tds pen for water check,work very fast and very accurate
        Cons:
        None

        Nov 21,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Artur
        Нужная вещь
        Pros:
        для контроля качества воды необходимая вещь.
        Cons:
        нет

        Nov 19,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • sergey
        класс
        Pros:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо
        Cons:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо

        Nov 18,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Gerosail
        Perfect quality xiaomi
        Pros:
        Very good quality-price and working perfectly thank you
        Cons:
        None

        Nov 17,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Ilya
        excellent
        Pros:
        Works fine
        Cons:
        No, for this price

        Nov 17,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • mustixa
        amacına uygun
        Pros:
        ürün kaliteli küçük taşınabilir sudaki etkin madde sayıısnı gösteriyor.sadece zararlı olanları değil yararlı olar-nlarda dahil gösterdiği sayıya
        Cons:
        ürün içinde gelen piller bitikti yeni pil takmak durumunda kaldım.

        Nov 14,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Eren
        Good Item
        Pros:
        Good results
        Cons:
        None

        Nov 12,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Nazeer Ahmed
        best in quality as usual from xiaomi
        Pros:
        Best quality and easy to use.
        Cons:
        None

        Nov 12,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • adi
        mr
        Pros:
        very accurate
        Cons:
        none

        Nov 11,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Michau
        Nice
        Pros:
        Now i know that my tap water ist better than bottled!
        Cons:
        none

        Nov 10,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      Prev 1 234 ... 65Go To: GO

      • Tommaso
        Xiaomi tds
        Pros:
        Tds pen for water check,work very fast and very accurate

        Cons:
        None

        Nov 21,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Artur
        Нужная вещь
        Pros:
        для контроля качества воды необходимая вещь.

        Cons:
        нет

        Nov 19,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • sergey
        класс
        Pros:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо

        Cons:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо

        Nov 18,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Gerosail
        Perfect quality xiaomi
        Pros:
        Very good quality-price and working perfectly thank you

        Cons:
        None

        Nov 17,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • mustixa
        amacına uygun
        Pros:
        ürün kaliteli küçük taşınabilir sudaki etkin madde sayıısnı gösteriyor.sadece zararlı olanları değil yararlı olar-nlarda dahil gösterdiği sayıya

        Cons:
        ürün içinde gelen piller bitikti yeni pil takmak durumunda kaldım.

        Nov 14,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Vladimir
        Original Xiaomi Mi TDS Pen
        Pros:
        Excellent build quality.
        Great product, works well.
        Good price.

        Cons:
        No english manual.

        Nov 09,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • xoan
        buen producto
        Pros:
        facilidad de uso

        Cons:
        ninguno

        Nov 09,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Ludmila
        Original Xiaomi Mi TDS Pen
        Pros:
        Отличный измеритель жесткости для воды. Очень нужная вещ при использовании фильтрации воды. Очень нужен для контроля качества питьевой воды при использовании обратного осмоса. Рекомендую однозначно.

        Cons:
        Пока нет и думаю не будет.

        Nov 08,2017

        Is this helpful?Yes (3)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Toni
        A useful object beautifully designed
        Pros:
        Easy to use

        Cons:
        None. Just don\'t get fooled about the idea of testing the water quality. It\'s not going to tell you if the water is contaminated or not.

        Nov 08,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Gabriel
        TDS pen
        Pros:
        Good quality
        Very useful
        Fast shipping

        Cons:
        none

        Nov 07,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      Prev 1 234 ... 43Go To: GO

      • Tommaso
        Xiaomi tds
        Pros:
        Tds pen for water check,work very fast and very accurate

        Cons:
        None

        Nov 21,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Artur
        Нужная вещь
        Pros:
        для контроля качества воды необходимая вещь.

        Cons:
        нет

        Nov 19,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • sergey
        класс
        Pros:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо

        Cons:
        отличный товар !!!!!!!!!!!!!!!!!!!Спасибо

        Nov 18,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Gerosail
        Perfect quality xiaomi
        Pros:
        Very good quality-price and working perfectly thank you

        Cons:
        None

        Nov 17,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • mustixa
        amacına uygun
        Pros:
        ürün kaliteli küçük taşınabilir sudaki etkin madde sayıısnı gösteriyor.sadece zararlı olanları değil yararlı olar-nlarda dahil gösterdiği sayıya

        Cons:
        ürün içinde gelen piller bitikti yeni pil takmak durumunda kaldım.

        Nov 14,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • xoan
        buen producto
        Pros:
        facilidad de uso

        Cons:
        ninguno

        Nov 09,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Ludmila
        Original Xiaomi Mi TDS Pen
        Pros:
        Отличный измеритель жесткости для воды. Очень нужная вещ при использовании фильтрации воды. Очень нужен для контроля качества питьевой воды при использовании обратного осмоса. Рекомендую однозначно.

        Cons:
        Пока нет и думаю не будет.

        Nov 08,2017

        Is this helpful?Yes (3)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Toni
        A useful object beautifully designed
        Pros:
        Easy to use

        Cons:
        None. Just don\'t get fooled about the idea of testing the water quality. It\'s not going to tell you if the water is contaminated or not.

        Nov 08,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Arthur
        tds pen
        Pros:
        I liked the accuracy
        quite accurate

        Cons:
        nada contra
        otimo produto

        Nov 03,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      • Євгеній
        TDS Pen
        Pros:
        Хороша річ, якісна збірка, красивий дизайн. Ціна більше ніж хороша.

        Cons:
        Немає.

        Nov 02,2017

        Is this helpful?Yes (0)No (0)

        Price

        Ease of Use

        Build Quality

        Usefulness

        Overall Rating

      Prev 1 234 ... 16Go To: GO

      Shipping & Payment

      Shipping

      There are two key factors which will affect the time you receive your items.

      1
      Item processing time
      After confirming your payment, we usually ship products out within 24 business hours. However, sometimes due to large transaction volumes or other order issues, we may require up to 3 working days to process orders. You will receive a notification email as soon as your product(s) have been dispatched.
      2
      Shipping methods
      China Warehouse:
      Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
      Unregistered Air Mail or Registered Air Mail United States 0.52% 23.78% 69.62% 5.87% 19.2
      Spain, United Kingdom, Italy, Germany, France & Portugal 1.58% 35.8% 56.84% 5.57% 21.92
      Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 5.59% 24.44% 55.84% 13.00% 22.68
      Russia 0% 11.5% 70.29% 16.21% 26.6
      Japan, Korea 0% 21.30% 68.80% 9.66% 15.95
      Brazil 0% 0% 23.91% 72.09% 38.6
      Thailand, Singapore & Malaysia 0% 18.38% 54.27% 25.34% 19.03
      Other countries 0.7% 38.79% 47.94% 8.56% 23.57
      Priority Line United States 28.94% 67.73% 2.69% 0% 11.9
      Spain, United Kingdom, Italy, Germany, France & Portugal 5.6% 65.76% 27.25% 0.38% 11.75
      Russia 0% 0.75% 88.30% 9.05% 22.86
      Brazil 0% 1.50% 65.08% 31.33% 27.5
      Australia 7.67% 86.60% 5.68% 0% 11
      Korea 35.54% 44.45% 19.32% 0% 11.65
      Japan 95.80% 2.09% 0% 0% 6.84
      Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
      Other countries 40.75% 49.96% 5.13% 0% 13
      Expedited Shipping ALL countries(EMS) 39.85% 50.09% 8.96% 0% 11.86
      ALL countries(DHL) 90.15% 9.84% 0% 0% 4.48
      EU Warehouse: Typically 3-5 days to the UK, 3-7 days to other European countries.
      USA Warehouse:Generally, 3-7 days to a USA address.
      ES Warehouse:Generally, 2-5 days to the Spain, 3-7 days to the Portugal.
      Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
      Note:The above shipping time are calculated by using calendar days. This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control.

      Payment

      Gearbest.com accepts PayPal,Credit Cards,Wire Transfer and Westem Union as secure payment methods.

      1
      Paypal
      The most convenient payment method in the world.
      2
      Wire transfer
      For orders which exceed $1,500,please contact us at support@gearbest.com.
      Note: please email us the order number,the amount transferred along with currency type,and the exact date of the wire transfer.
      3
      Western Union
      Please contact us at support@gearbest.com for details.
      Note: please email us the following information after you have paid via Westem Union:
      · Control Number(10 digits)
      · The exact amount sent along with the currency
      · Name of sender.
      · Address of sender
      Your Target Price:
      Order Quantity:
      Country:
      Your Name:

      Your Tel:

      (please include country code)

      E-Mail:
      Company Name:
      Detailed Inquiry Information:

      *Please let us know as much as possible about your inquiry so that we can assist you with your specific needs. We are always happy to help wherever possible.

      Your Recently Viewed Items

      See personalized recommendations

      Sign in

      New customer? Start here

      Destination Country:

       

             
        Stock in: China

        Available shipping methods:

        Please note: the standard and expedited shipping costs are only estimates; the actual shipping price will be shown on the order page.

        Download our cool Free App!

        Mobile Site

        Enjoy App-EXCLUSIVE Deals