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      Digital Rs485 Online Ph/orp Controller Transmitter

      (149 products available)

      IP66 RS485 4~20mA Online ORP PH Controller Transmitter For Sewage

      IP66 RS485 4~20mA Online ORP PH Controller Transmitter For Sewage

      $140.00 - $160.00
      Min Order: 1 piece
      CN
      4 yrsverify
      4.8
      /5
      ·
      3 reviews
      ·
      "Reliable supplier"
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      Hank 4-20mA Explosion-proof Pressure Transmitter Transducer Controller IP67 Pressure Sensors With Digital Display

      Hank 4-20mA Explosion-proof Pressure Transmitter Transducer Controller IP67 Pressure Sensors With Digital Display

      $70.00 - $80.00
      Min Order: 5 pieces
      CN
      1 yrs
      0.0
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      ·
      0 reviews
      ·
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      Ph Meter Controller GAIMC Digital 4-20mA Glass Electrode PH Orp Controller Ph Ec Meter

      Ph Meter Controller GAIMC Digital 4-20mA Glass Electrode PH Orp Controller Ph Ec Meter

      $77.00 - $165.00
      Min Order: 1 piece
      CN
      8 yrsverify
      5.0
      /5
      ·
      39 reviews
      ·
      "quick delivery"
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      Wholesale Made Stainless Steel 4~20ma Oem Odm Pressure Transducer Pressure Transmitter

      Wholesale Made Stainless Steel 4~20ma Oem Odm Pressure Transducer Pressure Transmitter

      $16.00 - $28.00
      Min Order: 1 piece
      CN
      4 yrs
      4.9
      /5
      ·
      9 reviews
      ·
      "Fast reply"
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      Ph Meter Tester Factory Price Ph Ec Tds Meter Tester Online Industrial Ph Controller Orp Meter

      Ph Meter Tester Factory Price Ph Ec Tds Meter Tester Online Industrial Ph Controller Orp Meter

      $130.00 - $175.00
      Min Order: 1 piece
      CN
      7 yrs
      4.9
      /5
      ·
      7 reviews
      ·
      "Quick shipping"
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      Digital Process Controller MCR490:1/8 DIN 0.2%Programmable PID Auto Self-Tuning /Manual Digital Process PID Controller With SSR/Relay/4-20ma/RS485/RS232

      Digital Process Controller MCR490:1/8 DIN 0.2%Programmable PID Auto Self-Tuning /Manual Digital Process PID Controller With SSR/Relay/4-20ma/RS485/RS232

      $20.00 - $60.00
      Min Order: 2 sets
      CN
      6 yrs
      4.7
      /5
      ·
      7 reviews
      ·
      "Fantastic service"
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      Industrial Automated Digital pH/ORP 8500A Rs485 Online Ph/orp Controller Transmitter

      Industrial Automated Digital pH/ORP 8500A Rs485 Online Ph/orp Controller Transmitter

      $400.00 - $500.00
      Min Order: 8 pieces
      CN
      10 yrs
      5.0
      /5
      ·
      1 reviews
      ·
      Contact Supplier
      Good price high quality 4-20ma water controller ph ec swimming pool transmitter for underground water treatment

      Good price high quality 4-20ma water controller ph ec swimming pool transmitter for underground water treatment

      $67.00 - $90.00
      Min Order: 2 pieces
      CN
      7 yrs
      5.0
      /5
      ·
      7 reviews
      ·
      "fast delivery"
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      BQOU Online phg-2091pro ph/orp sensor for fish pond ph sensor transmitter

      BQOU Online phg-2091pro ph/orp sensor for fish pond ph sensor transmitter

      $99.00 - $149.00
      Min Order: 1 set
      CN
      6 yrs
      5.0
      /5
      ·
      8 reviews
      ·
      "Professional factory"
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      Online ph controller hydroponics 4-20ma digital price industrial hydroponic liquid orp ph meter price 20ma supplier ph tester

      Online ph controller hydroponics 4-20ma digital price industrial hydroponic liquid orp ph meter price 20ma supplier ph tester

      Ready to Ship
      $79.00 - $189.39
      Min Order: 1 piece
      Shipping per piece: $33.45
      CN
      2 yrsverify
      4.9
      /5
      ·
      14 reviews
      ·
      "Reliable supplier"
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      pH/ORP-1901A online digital digital ph tester ph controller with dosing pump

      pH/ORP-1901A online digital digital ph tester ph controller with dosing pump

      Ready to Ship
      $162.00 - $195.00
      Min Order: 1 piece
      Shipping per piece: $39.39
      CN
      5 yrs
      0.0
      /5
      ·
      0 reviews
      ·
      "professional service"
      Contact Supplier
      online digital conductivity transmitter meter water resistivity meter industrial conductivity tester controller

      online digital conductivity transmitter meter water resistivity meter industrial conductivity tester controller

      $108.89 - $128.87
      Min Order: 1 piece
      CN
      1 yrs
      0.0
      /5
      ·
      0 reviews
      ·
      Contact Supplier
      4-20 mA RS485 ph ORP controller electrode Aquarium pool Digital Ph Meter

      4-20 mA RS485 ph ORP controller electrode Aquarium pool Digital Ph Meter

      $127.69 - $146.00
      Min Order: 5 pieces
      CN
      5 yrsverify
      4.8
      /5
      ·
      12 reviews
      ·
      "good service"
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      New Arrival 9~24V DC Online pH meter 4-20mA pH controller with RS485 Digital Interface transmitter pH sensor probe

      New Arrival 9~24V DC Online pH meter 4-20mA pH controller with RS485 Digital Interface transmitter pH sensor probe

      $90.00 - $160.00
      Min Order: 2 sets
      CN
      15 yrsverify
      5.0
      /5
      ·
      10 reviews
      ·
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      Industrial Intelligent Digital Online Temp. pH ORP Transmitter with RS485 4~20mA for Water

      Industrial Intelligent Digital Online Temp. pH ORP Transmitter with RS485 4~20mA for Water

      $150.00 - $180.00
      Min Order: 1 piece
      CN
      12 yrs
      5.0
      /5
      ·
      2 reviews
      ·
      "fast delivery"
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      HEDAO PHS-3C Hydroponic Dosing system Inline EC Meter TDS Controller Electrical Conductivity Probe Sensor Water Transmitter

      HEDAO PHS-3C Hydroponic Dosing system Inline EC Meter TDS Controller Electrical Conductivity Probe Sensor Water Transmitter

      $139.00 - $160.00
      Min Order: 2 pieces
      CN
      13 yrsverify
      3.7
      /5
      ·
      29 reviews
      ·
      "Fast delivery"
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      Industrial Online ORP pH Controller Tester pH Meter with LCD Display Screen Factory Price Ph Ec Tds Meter 4-20ma RS485

      Industrial Online ORP pH Controller Tester pH Meter with LCD Display Screen Factory Price Ph Ec Tds Meter 4-20ma RS485

      $220.00 - $310.00
      Min Order: 5 pieces
      CN
      3 yrs
      5.0
      /5
      ·
      1 reviews
      ·
      "fast delivery"
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      Online Digital pH meter ORP Sensor Water Quality pH Controller Transmitter pH ORP Analyzer

      Online Digital pH meter ORP Sensor Water Quality pH Controller Transmitter pH ORP Analyzer

      $126.00 - $252.00
      Min Order: 1 piece
      CN
      1 yrsverify
      0.0
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      ·
      0 reviews
      ·
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      ph sensor ec ph transmitter ph meter controller

      ph sensor ec ph transmitter ph meter controller

      $110.00 - $120.00
      Min Order: 1 piece
      CN
      4 yrsverify
      5.0
      /5
      ·
      13 reviews
      ·
      "excellent service"
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      BOQU pHG-2091pro aquarium temperature digital electronic ph water meter tester controller automatic for chemicals with app wifi

      BOQU pHG-2091pro aquarium temperature digital electronic ph water meter tester controller automatic for chemicals with app wifi

      $75.00 - $210.43
      Min Order: 1 set
      CN
      11 yrsverify
      5.0
      /5
      ·
      2 reviews
      ·
      "Reliable supplier"
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      online industrial equipment to measure pH analyzer meter digital pH controller sensor 0 10v PH transmitter ORP meter

      online industrial equipment to measure pH analyzer meter digital pH controller sensor 0 10v PH transmitter ORP meter

      $160.00 - $165.00
      Min Order: 1 set
      CN
      2 yrsverify
      4.3
      /5
      ·
      5 reviews
      ·
      Contact Supplier
      High quality Ph/ORP-8500A Digital Online Rs485 Online Ph/orp Meter Controller

      High quality Ph/ORP-8500A Digital Online Rs485 Online Ph/orp Meter Controller

      $400.00 - $500.00
      Min Order: 8 pieces
      CN
      10 yrs
      5.0
      /5
      ·
      1 reviews
      ·
      Contact Supplier
      Low price digital control dosing pump water ph controller online orp ph meter

      Low price digital control dosing pump water ph controller online orp ph meter

      Ready to Ship
      $80.00 - $190.00
      Min Order: 1 piece
      Shipping per piece: $45.65
      CN
      5 yrs
      0.0
      /5
      ·
      0 reviews
      ·
      "professional service"
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      Boqu ECG-2090PRO Online TDS Measurement Measuring Device Meter Range 20 Salinity Meter Digital ph and tds meter and ph monitor

      Boqu ECG-2090PRO Online TDS Measurement Measuring Device Meter Range 20 Salinity Meter Digital ph and tds meter and ph monitor

      $185.00 - $550.00
      Min Order: 1 set
      CN
      6 yrs
      5.0
      /5
      ·
      8 reviews
      ·
      "Professional factory"
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      Boqu pHG-2091Pro intelligent online water quality analysis and monitoring instrument digital ph metre RS485 4-20MA

      Boqu pHG-2091Pro intelligent online water quality analysis and monitoring instrument digital ph metre RS485 4-20MA

      Ready to Ship
      $162.00 - $195.00
      Min Order: 1 piece
      Shipping per piece: $93.63
      CN
      2 yrsverify
      4.9
      /5
      ·
      14 reviews
      ·
      "Reliable supplier"
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      inline digital pH water quality analysis instruments controller 485 communication economical online multiparameter ORP pH meter

      inline digital pH water quality analysis instruments controller 485 communication economical online multiparameter ORP pH meter

      $153.00 - $169.00
      Min Order: 1 set
      CN
      5 yrsverify
      4.8
      /5
      ·
      12 reviews
      ·
      "good service"
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      PH ORP Meter Digital LCD Display RS485 4-20mA Online PH Meter For Sewage Monitoring Water Quality PH/ORP Meter

      PH ORP Meter Digital LCD Display RS485 4-20mA Online PH Meter For Sewage Monitoring Water Quality PH/ORP Meter

      $110.00 - $130.00
      Min Order: 7 pieces
      CN
      3 yrs
      5.0
      /5
      ·
      1 reviews
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      "fast delivery"
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      Industrial online automatic digital ec tds ph meter analyzer controller transmitter 4-20ma for water

      Industrial online automatic digital ec tds ph meter analyzer controller transmitter 4-20ma for water

      $80.00 - $100.00
      Min Order: 2 pieces
      CN
      7 yrs
      5.0
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      7 reviews
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      ph orp tds meter ph and ce ec ph sensor and transmitter

      ph orp tds meter ph and ce ec ph sensor and transmitter

      $110.00 - $120.00
      Min Order: 1 piece
      CN
      4 yrsverify
      5.0
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      ·
      13 reviews
      ·
      "excellent service"
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      Industrial Intelligent Digital Online Temp. pH ORP Controller with RS485 4~20mA for Water

      Industrial Intelligent Digital Online Temp. pH ORP Controller with RS485 4~20mA for Water

      $150.00 - $180.00
      Min Order: 1 piece
      CN
      12 yrs
      5.0
      /5
      ·
      2 reviews
      ·
      "fast delivery"
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      pHG-2091 Chemical Fertilizer Industry ODM OEM Online linearity pH medidor de ph agua digital

      pHG-2091 Chemical Fertilizer Industry ODM OEM Online linearity pH medidor de ph agua digital

      Ready to Ship
      $75.00 - $139.00
      Min Order: 1 piece
      Shipping per piece: $25.55
      CN
      11 yrsverify
      5.0
      /5
      ·
      2 reviews
      ·
      "Reliable supplier"
      Contact Supplier
      Online Portable orp ec ph Sensor meter online with conductivity Analyzer Multiparameter Water Quality Meter

      Online Portable orp ec ph Sensor meter online with conductivity Analyzer Multiparameter Water Quality Meter

      $60.00 - $150.00
      Min Order: 2 sets
      CN
      15 yrsverify
      5.0
      /5
      ·
      10 reviews
      ·
      Contact Supplier
      Low Price PH Sensor Electrode for High Temperature Aquaculture Ph Orp Sensor Water Probe

      Low Price PH Sensor Electrode for High Temperature Aquaculture Ph Orp Sensor Water Probe

      $31.50 - $76.50
      Min Order: 1 piece
      CN
      1 yrsverify
      0.0
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      Online ph controller hydroponics 4-20ma digital price industrial hydroponic liquid orp ph meter price 20ma supplier ph tester

      Online ph controller hydroponics 4-20ma digital price industrial hydroponic liquid orp ph meter price 20ma supplier ph tester

      Ready to Ship
      $186.00 - $210.00
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      Shipping per piece: $39.39
      CN
      5 yrs
      0.0
      /5
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      ·
      "professional service"
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      micro explosion proof level osmosis water ph transmitter metre agroalimentaire metro online water conductivity ppm and ph meter

      micro explosion proof level osmosis water ph transmitter metre agroalimentaire metro online water conductivity ppm and ph meter

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      Min Order: 1 set
      CN
      5 yrsverify
      4.8
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      12 reviews
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      pHG-2091 cheap ORP PH meter ph transmitter ph meter water digital

      pHG-2091 cheap ORP PH meter ph transmitter ph meter water digital

      $66.00 - $108.00
      Min Order: 1 piece
      CN
      2 yrsverify
      4.9
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      14 reviews
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      inline orp meter ph control of swimming pool hydroponic online ph controller transmitter

      inline orp meter ph control of swimming pool hydroponic online ph controller transmitter

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      $130.00 - $135.00
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      CN
      4 yrsverify
      5.0
      /5
      ·
      13 reviews
      ·
      "excellent service"
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      Ph Transmitter Digital Do Meter Controller Sensor Concentration pH/TDS/DO/TU Multiparameter Water Quality Fluorescent

      Ph Transmitter Digital Do Meter Controller Sensor Concentration pH/TDS/DO/TU Multiparameter Water Quality Fluorescent

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      CN
      3 yrs
      5.0
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      Industrial Intelligent Digital Online Temp. pH ORP Sensor Monitor with RS485 4~20mA for Water

      Industrial Intelligent Digital Online Temp. pH ORP Sensor Monitor with RS485 4~20mA for Water

      $150.00 - $180.00
      Min Order: 1 piece
      CN
      12 yrs
      5.0
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      2 reviews
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      "fast delivery"
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      Reliable and Cheap water treatment ph controller digital online ph orp tester meter waste water treatment plant

      Reliable and Cheap water treatment ph controller digital online ph orp tester meter waste water treatment plant

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      $130.00 - $160.00
      Min Order: 2 pieces
      Shipping per piece: $31.80
      CN
      7 yrs
      5.0
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      About products and suppliers

      149 digital rs485 online ph/orp controller transmitter products are offered for sale by suppliers on Alibaba.com A wide variety of digital rs485 online ph/orp controller transmitter options are available to you, You can also choose from plastic, digital rs485 online ph/orp controller transmitter,
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