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Apera Instruments AI3115 201DJ-C Double-Junction Combination pH Electrode, BNC Connector, 3' Cable, Polycarbonate/Glass

4.1 out of 5 stars 56 ratings
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Purchase options and add-ons

  • Double-junction structure, hard to be clogged
  • Suitable for testing in turbid liquid
  • Standard bnc connector
  • Gel KCL electrolyte, no need for refilling
› See more product details

Product details

  • Product Dimensions ‏ : ‎ 16 x 1.27 x 1.27 cm; 109 g
  • Date First Available ‏ : ‎ Dec 21 2017
  • Manufacturer ‏ : ‎ Shanghai Sanxin Instrumentation
  • Place of Business ‏ : ‎ COLUMBUS, OH, 43220 US
  • ASIN ‏ : ‎ B076M6F7V2
  • Item model number ‏ : ‎ AI3115
  • Customer Reviews:
    4.1 out of 5 stars 56 ratings

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Apera Instruments AI3115 201DJ-C Double-Junction Combination pH Electrode, BNC Connector, 3' Cable, Polycarbonate/Glass
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Product description

The Apera 201DJ-C Double-Junction Combination pH Electrode is ideal for long time consistent testing in turbid water solutions, such as wastewater, pools and spas, and environmental monitoring. Its double-junction structure prevents the probe from being clogged and contaminated during measurement. Measurement Range: 0C14 pH, 0C80?C (32C176?F); Housing: Polycarbonate; Junction: Double Ceramic; Reference Electrode: Ag/AgCl; Connector: BNC; Size: ?12*160 mm; Cable: 3 Ft. Not suitable for testing in low-ion concentration solutions (eg: deionized water or distilled water), strong base solutions (pH>12), highly corrosive liquid, or for continuous testing in high temperature solutions (>140?F). Compatible with any pH meters that use BNC connectors. Temperature sensor is not built-in. Users need to have a separate temperature probe to enable ATC or manually input temperature to complete temperature compensation. This electrode has a 6-Month limited warranty fulfilled by Apera Instruments, LLC.

From the manufacturer

201DJ-C

membrane

201-c shield

storage

Comes with a storage bottle, ensuring the electrode is at optimal status

lead-free

Lead-free glass electrode eliminates safety concerns

bnc

BNC connector, compatible with all BNC pH meters

Technical Specifications

Measuring Range 0 to 14 pH
Electrode Housing Polycarbonate
Junction Double-Junction Ceramic
Reference Electrode Ag/AgCl
Reference Solution Gel KCl
Connector BNC
Cable Length 3 Ft
Temperature Sensor N/A
Operating Temperature 32 to 176F (0 - 80C)
Dimension ?12*160 mm

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Customer reviews

4.1 out of 5 stars
56 global ratings

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Top reviews from Canada

  • Deadpool
    5.0 out of 5 stars Works awesome for a replacement unit
    Reviewed in Canada on March 25, 2023
    Verified Purchase
    Used to replace a bad probe works very well. Responsive and accurate
    Helpful
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  • james bancescu
    1.0 out of 5 stars junk
    Reviewed in Canada on February 25, 2025
    Verified Purchase
    Installed this unit and it was reading 1 full point below what my ph pen was testing. CAlibrated oin 7.0-10.0 solution and it would only read 9.1. Never worked out of the box.
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Top reviews from other countries

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  • FRANCISCO
    5.0 out of 5 stars M
    Reviewed in Spain on June 9, 2025
    Verified Purchase
    Funciona perfectamente
    Report
  • N. Yager
    5.0 out of 5 stars Excellent replacement for Oem
    Reviewed in the United States on March 9, 2025
    Verified Purchase
    Worked perfectly to replace the comparable unit on my Milwaukee ph tester.
    Report
  • ȥ
    5.0 out of 5 stars ߾
    Reviewed in Japan on June 23, 2022
    Verified Purchase
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    Ŀ߼Фꡢͥ`Ȿʥܤʹۤ;Ԥ롣
    䥳ͥؤȫƤα˥`˽ӾAܡ
    `ɤγ3ȼؤƤ뤬Ʒ1ʤΤע⡣
    Customer image
    ȥ
    5.0 out of 5 stars
    ߾

    Reviewed in Japan on June 23, 2022
    ׹ϥݤnҽƻ``
    ȤȷٶȤ餷ȫʤ
    Ŀ߼Фꡢͥ`Ȿʥܤʹۤ;Ԥ롣
    䥳ͥؤȫƤα˥`˽ӾAܡ
    `ɤγ3ȼؤƤ뤬Ʒ1ʤΤע⡣
    Images in this review
    Customer imageCustomer imageCustomer image
    Report
  • 鶹 Kunde
    5.0 out of 5 stars Sehr gute Ph Sonde
    Reviewed in Germany on June 18, 2025
    Verified Purchase
    Sehr gute Sonde, funktioniert zuverl?ssig
    Report
  • 988
    5.0 out of 5 stars Funciona muy bien.
    Reviewed in Mexico on December 20, 2021
    Verified Purchase
    Mi potencimetro reconoce el electrodo sin problema y pude calibrarlo. Las lecturas son estables, por lo que a ese precio estoy muy satisfecho con la compra.
    Report