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Aquarium pH Level Meters and Controllers

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99 results

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  • Best Match
  • Time: ending soonest
  • Time: newly listed
  • Price + Shipping: lowest first
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  • Measured/Controlled Parameter: pH Level- Selected

    • MILWAUKEE INSTRUMENTS MC122 PH CONTROLLER WITH MP810 DOSING PUMP MC720 COMBO KIT - Image 1 of 4
    • MILWAUKEE INSTRUMENTS MC122 PH CONTROLLER WITH MP810 DOSING PUMP MC720 COMBO KIT - Image 2 of 4
    • MILWAUKEE INSTRUMENTS MC122 PH CONTROLLER WITH MP810 DOSING PUMP MC720 COMBO KIT - Image 3 of 4
    • MILWAUKEE INSTRUMENTS MC122 PH CONTROLLER WITH MP810 DOSING PUMP MC720 COMBO KIT - Image 4 of 4

    MILWAUKEE INSTRUMENTS MC122 PH CONTROLLER WITH MP810 DOSING PUMP MC720 COMBO KIT

    Brand New · Milwaukee
    PHP 9,550.21
    PHP 3,429.85 shipping
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    • 2 in1 Digital Salinity & PH Meter Salinity&PH Monitor for Aquarium - Image 1 of 4
    • 2 in1 Digital Salinity & PH Meter Salinity&PH Monitor for Aquarium - Image 2 of 4
    • 2 in1 Digital Salinity & PH Meter Salinity&PH Monitor for Aquarium - Image 3 of 4
    • 2 in1 Digital Salinity & PH Meter Salinity&PH Monitor for Aquarium - Image 4 of 4

    2 in1 Digital Salinity & PH Meter Salinity&PH Monitor for Aquarium

    Brand New · Unbranded
    PHP 4,474.25
    PHP 280.91 shipping
    Only 2 left
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    • Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal - Image 1 of 4
    • Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal - Image 2 of 4
    • Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal - Image 3 of 4
    • Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal - Image 4 of 4

    Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal

    Brand New
    PHP 3,159.62
    Was: PHP 4,213.01was - PHP 4,213.01
    or Best Offer
    PHP 2,479.27 shipping
    26 watching
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    • Neptune Systems Apex Classic Aquarium Controller EB8 with Temp - PH probes WIFI - Image 1 of 4
    • Neptune Systems Apex Classic Aquarium Controller EB8 with Temp - PH probes WIFI - Image 2 of 4
    • Neptune Systems Apex Classic Aquarium Controller EB8 with Temp - PH probes WIFI - Image 3 of 4
    • Neptune Systems Apex Classic Aquarium Controller EB8 with Temp - PH probes WIFI - Image 4 of 4

    Neptune Systems Apex Classic Aquarium Controller EB8 with Temp - PH probes WIFI

    Pre-Owned · Neptune Systems
    PHP 13,427.26
    or Best Offer
    PHP 5,637.20 shipping
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  • Neptune Systems Apex A2 Base Unit, EB832, Probes, And Breakout Box Starter Kit - Image 1 of 1

    New ListingNeptune Systems Apex A2 Base Unit, EB832, Probes, And Breakout Box Starter Kit

    Pre-Owned · Neptune Systems
    PHP 22,472.40
    or Best Offer
    PHP 5,977.10 shipping
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  • Bluelabs Ph Controller - Image 1 of 2

    Bluelabs Ph Controller

    Pre-Owned
    PHP 9,831.68
    or Best Offer
    PHP 2,389.38 shipping
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  • Neptune Systems APEX A3 Pro New Sealed In Box - Image 1 of 4

    Neptune Systems APEX A3 Pro New Sealed In Box

    Brand New · Neptune Systems
    PHP 47,472.38
    PHP 5,847.32 shipping
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  • Neptune Systems A3 Apex Base Controller - Image 1 of 3

    Neptune Systems A3 Apex Base Controller

    Pre-Owned
    PHP 20,966.89
    or Best Offer
    PHP 3,693.98 shipping
    2⁣7⁣ ⁣⁣⁣W⁣⁣⁣O⁣⁣⁣⁣ ⁣N⁣U⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣O⁣E⁣⁣
  • Neptune Apex A2 Base Unit - Image 1 of 3

    Neptune Apex A2 Base Unit

    Pre-Owned · Neptune
    PHP 11,180.02
    or Best Offer
    PHP 3,277.60 shipping
    Y⁣⁣⁣T⁣⁣ ⁣⁣⁣W⁣⁣C⁣ ⁣7⁣⁣Q⁣⁣ ⁣⁣⁣0⁣⁣⁣⁣N⁣⁣⁣ ⁣⁣
  • Milwaukee MC122 pH Controller w/probe - Image 1 of 1

    Milwaukee MC122 pH Controller w/probe

    Brand New · Milwaukee
    PHP 7,303.53
    PHP 2,982.65 shipping
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  • Neptune Apex EL Base Unit - No Ppwer " SOLD AS IS" - Image 1 of 4

    New ListingNeptune Apex EL Base Unit - No Ppwer " SOLD AS IS"

    Pre-Owned · Neptune
    PHP 2,809.05
    PHP 3,439.96 shipping
    0 bids
    4d 3h
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  • Weipro PH2010A PH meter and controller, PH online monitor, good quality reliable - Image 1 of 4

    Weipro PH2010A PH meter and controller, PH online monitor, good quality reliable

    Brand New
    PHP 5,055.73
    Free shipping
    101 watching
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  • Used Neptune Systems APEX Energy Bar Surge - Image 1 of 1

    Used Neptune Systems APEX Energy Bar Surge

    Pre-Owned · Neptune Systems
    PHP 17,977.92
    PHP 4,520.32 shipping
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  • Customizable Breakout Box 6x Lighted Toggle Apex Neptune - Image 1 of 4

    Customizable Breakout Box 6x Lighted Toggle Apex Neptune

    Brand New
    PHP 4,845.05
    Was: PHP 6,460.25was - PHP 6,460.25
    or Best Offer
    PHP 1,687.12 shipping
    20 watching
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  • WiFi 2 in 1 Digital Salinity & PH Meter Salinity & PH Monitor for Aquarium - Image 1 of 4

    WiFi 2 in 1 Digital Salinity & PH Meter Salinity & PH Monitor for Aquarium

    Brand New · Unbranded
    PHP 6,837.79
    Was: PHP 7,197.91was - PHP 7,197.91
    or Best Offer
    Free shipping
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  • Weipro PH2000 PH meter high Accuracy, PH online monitor, good quality reliable - Image 1 of 4

    Weipro PH2000 PH meter high Accuracy, PH online monitor, good quality reliable

    Brand New
    PHP 3,932.11
    Free shipping
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  • Seneye Home Aquarium Pond Ammonia PH Temperature Monitor - Image 1 of 2

    Seneye Home Aquarium Pond Ammonia PH Temperature Monitor

    Brand New · seneye
    PHP 7,584.44
    PHP 1,768.02 shipping
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  • Milwaukee MC125 pH/ORP Controller w/probe - Image 1 of 1

    Milwaukee MC125 pH/ORP Controller w/probe

    Brand New
    PHP 15,208.20
    PHP 3,215.80 shipping
    29 watching
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  • Neptune Double Junction Lab Grade pH Probe - Image 1 of 1

    Neptune Double Junction Lab Grade pH Probe

    Brand New · Neptune Systems
    PHP 5,336.63
    PHP 2,543.31 shipping
    C⁣⁣⁣3⁣⁣ ⁣⁣⁣4⁣W⁣ ⁣O⁣N⁣⁣ ⁣2⁣D⁣⁣ ⁣⁣7⁣J⁣ ⁣⁣B⁣⁣⁣⁣
  • clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #4 - Image 1 of 4

    clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #4

    Brand New
    PHP 898.33
    Free shipping
    57 sold
    ⁣2⁣⁣S⁣ ⁣⁣K⁣⁣⁣M⁣ ⁣A⁣⁣⁣⁣⁣H⁣⁣ ⁣B⁣O⁣⁣⁣ ⁣O⁣⁣⁣⁣
  • GHL profilux 3 ex bundle - Image 1 of 4

    GHL profilux 3 ex bundle

    Pre-Owned
    PHP 16,798.12
    PHP 2,809.05 shipping
    A⁣⁣⁣A⁣⁣⁣ ⁣⁣⁣T⁣⁣C⁣ ⁣⁣⁣6⁣G⁣⁣⁣ ⁣⁣O⁣⁣⁣⁣E⁣⁣ ⁣
  • clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #2 - Image 1 of 3

    clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #2

    Brand New
    PHP 673.61
    Free shipping
    L⁣L⁣ ⁣⁣⁣⁣⁣⁣⁣V⁣M⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣J⁣J⁣⁣ ⁣F⁣⁣⁣
  • Neptune Systems Apex Display Module highly legible display screen - Image 1 of 2

    Neptune Systems Apex Display Module highly legible display screen

    Pre-Owned
    PHP 7,548.08
    PHP 3,277.70 shipping
    ⁣⁣⁣V⁣3⁣ ⁣⁣B⁣J⁣ ⁣⁣⁣F⁣Q⁣ ⁣⁣D⁣I⁣ ⁣⁣⁣⁣⁣⁣⁣B⁣A⁣⁣
  • Neptune Systems Apex Calibration Pack PH 7 & 10 Solutions & Salinity Probe Tests - Image 1 of 3

    Neptune Systems Apex Calibration Pack PH 7 & 10 Solutions & Salinity Probe Tests

    Brand New · Neptune Systems
    PHP 783.72
    PHP 1,566.89 shipping
    7 watching
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  • Seneye Reef Aquarium Monitor and Par Meter 0226-04 [NEW OPEN BOX] - Image 1 of 4

    Seneye Reef Aquarium Monitor and Par Meter 0226-04 [NEW OPEN BOX]

    Brand New · seneye
    PHP 11,008.67
    or Best Offer
    PHP 2,177.58 shipping
    H⁣B⁣⁣ ⁣D⁣O⁣⁣⁣ ⁣8⁣⁣⁣D⁣ ⁣9⁣⁣U⁣ ⁣W⁣J⁣⁣ ⁣E⁣⁣⁣ ⁣⁣⁣
  • SENEYE REEF AQUARIUM MONITOR - SENEYE - Image 1 of 1

    SENEYE REEF AQUARIUM MONITOR - SENEYE

    Brand New · seneye
    PHP 12,921.07
    PHP 1,925.32 shipping
    Only 1 left!
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  • Weipro PH probe electrode BNC socket 1.5 meters cable, high accuracy,NIB - Image 1 of 4

    Weipro PH probe electrode BNC socket 1.5 meters cable, high accuracy,NIB

    Brand New
    PHP 2,246.68
    Free shipping
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  • pH & ORP Redox Controller Water Quality Meter Tester Aquarium Hydroponics Tank - Image 1 of 4

    pH & ORP Redox Controller Water Quality Meter Tester Aquarium Hydroponics Tank

    Brand New · Unbranded
    PHP 9,095.70
    or Best Offer
    Free shipping
    Only 1 left!
    T⁣X⁣⁣ ⁣⁣V⁣⁣⁣L⁣⁣ ⁣⁣Y⁣⁣O⁣ ⁣H⁣3⁣ ⁣0⁣⁣5⁣ ⁣⁣F⁣⁣⁣⁣
  • Customizable Breakout Box 4x Lighted Toggle 2x Push Button for Apex Neptune - Image 1 of 4

    Customizable Breakout Box 4x Lighted Toggle 2x Push Button for Apex Neptune

    Brand New
    PHP 4,002.33
    Was: PHP 5,336.63was - PHP 5,336.63
    or Best Offer
    PHP 1,661.83 shipping
    9 watching
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  • 6 IN 1 Smart PH Salinity Controller Meter WIFI Aquarium Tank Seawater SaltTester - Image 1 of 4

    6 IN 1 Smart PH Salinity Controller Meter WIFI Aquarium Tank Seawater SaltTester

    Brand New · Unbranded
    PHP 7,420.95
    Was: PHP 7,979.39was - PHP 7,979.39
    Free shipping
    S⁣p⁣5⁣o⁣n⁣s⁣A⁣о⁣ ⁣r⁣e⁣d⁣W⁣⁣⁣⁣⁣9⁣ ⁣2⁣1⁣ ⁣⁣⁣J⁣⁣⁣N⁣
  • 6in1 Smart Water Quality Control Meter PH Salinity Temp WIFI APP Aquarium Tester - Image 1 of 4

    6in1 Smart Water Quality Control Meter PH Salinity Temp WIFI APP Aquarium Tester

    Brand New · Unbranded
    PHP 7,433.87
    Was: PHP 7,908.60was - PHP 7,908.60
    Free shipping
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  • W2825 WiFi Aquarium Electronic Salinity and Ph Value On-line Meter and Monitor - Image 1 of 4

    W2825 WiFi Aquarium Electronic Salinity and Ph Value On-line Meter and Monitor

    Brand New · Unbranded
    PHP 7,088.92
    Was: PHP 7,541.18was - PHP 7,541.18
    or Best Offer
    PHP 336.52 shipping
    9⁣Ѕ⁣p⁣6⁣o⁣n⁣ ⁣R⁣G⁣s⁣ ⁣7⁣P⁣o⁣r⁣ ⁣Y⁣W⁣e⁣ ⁣2⁣Z⁣d⁣⁣ ⁣⁣⁣I⁣
  • Neptune Systems Apex Classic Aquarium Controller EB8 PM1 Temp Probes - Image 1 of 4

    Neptune Systems Apex Classic Aquarium Controller EB8 PM1 Temp Probes

    Pre-Owned · Neptune Systems
    PHP 10,056.40
    or Best Offer
    PHP 4,189.42 shipping
    9⁣0⁣⁣⁣⁣ ⁣S⁣⁣S⁣ ⁣I⁣⁣⁣2⁣⁣⁣ ⁣⁣T⁣H⁣⁣⁣ ⁣⁣S⁣⁣1⁣⁣
  • WIFI PH Salinity Controller Meter Aquarium Tank Seawater Salt Tester Monitor Kit - Image 1 of 4

    WIFI PH Salinity Controller Meter Aquarium Tank Seawater Salt Tester Monitor Kit

    Brand New · Unbranded
    PHP 3,251.19
    Was: PHP 3,458.50was - PHP 3,458.50
    Free shipping
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  • Milwaukee MC122 Pro pH Controller, 115V - Image 1 of 1

    Milwaukee MC122 Pro pH Controller, 115V

    Brand New · Milwaukee
    PHP 7,076.00
    PHP 3,491.09 shipping
    145 watching
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  • Milwaukee MC125 ORP/PH Dual Controller, 2 Probes Included, SMS125, Meter - Image 1 of 1

    Milwaukee MC125 ORP/PH Dual Controller, 2 Probes Included, SMS125, Meter

    Brand New
    PHP 12,865.45
    PHP 1,923.64 shipping
    65 watching
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  • Neptune Systems A3 Apex System - Image 1 of 2

    Neptune Systems A3 Apex System

    Brand New · Neptune Systems
    PHP 35,393.47
    PHP 5,245.62 shipping
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  • acryli made Liquid storage bucket 4 rooms 6 liters dosing pump Scale container - Image 1 of 4

    acryli made Liquid storage bucket 4 rooms 6 liters dosing pump Scale container

    Brand New
    PHP 3,370.30
    PHP 561.81 shipping
    54 sold
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  • Milwaukee MC122 PRO pH Controller - Image 1 of 4

    Milwaukee MC122 PRO pH Controller

    Brand New · Milwaukee
    PHP 9,797.97
    PHP 2,675.34 shipping
    39 watching
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  • Neptune apex Break out box - BOB - Full Customization - Naming - Multi colors - - Image 1 of 4

    Neptune apex Break out box - BOB - Full Customization - Naming - Multi colors -

    Brand New · Neptune
    PHP 2,528.15 to PHP 3,370.86
    PHP 1,924.20 shipping
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  • Universal PH2010/PH2000 Universal pH combination electrode PH Probe PH sensor - Image 1 of 4

    Universal PH2010/PH2000 Universal pH combination electrode PH Probe PH sensor

    Brand New
    PHP 1,123.06
    or Best Offer
    PHP 56.18 shipping
    ⁣⁣⁣⁣⁣W⁣V⁣⁣ ⁣K⁣Q⁣⁣⁣⁣ ⁣⁣⁣C⁣U⁣ ⁣⁣⁣G⁣⁣⁣⁣V⁣ ⁣
  • MC122 PH Controller w/ PH Electrode - Milwaukee Instruments - Image 1 of 1

    MC122 PH Controller w/ PH Electrode - Milwaukee Instruments

    AUTHORIZED DEALER - FULL WARRANTY - FAST FREE SHIPPING
    Brand New · Milwaukee
    PHP 7,303.53
    PHP 1,714.64 shipping
    Only 1 left!
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  • clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #1 - Image 1 of 2

    clip on probe Electrode holder fixture support stand,PH Orp Acrylic reef tank #1

    Brand New
    PHP 561.25
    Free shipping
    I⁣3⁣⁣⁣⁣⁣ ⁣Y⁣R⁣⁣ ⁣V⁣X⁣⁣⁣⁣ ⁣6⁣⁣⁣⁣V⁣ ⁣L⁣⁣F⁣⁣⁣
  • PH Salinity Controller Meter WIFI Aquarium Tank Seawater Salt Tester Monitor - Image 1 of 4

    PH Salinity Controller Meter WIFI Aquarium Tank Seawater Salt Tester Monitor

    Brand New · Unbranded
    PHP 9,462.57 to PHP 10,423.26
    Was: PHP 9,960.33was - PHP 9,960.33
    Free shipping
    S⁣E⁣⁣ ⁣⁣E⁣⁣⁣⁣⁣⁣Z⁣ ⁣9⁣C⁣ ⁣⁣⁣D⁣4⁣ ⁣⁣R⁣N⁣ ⁣C⁣⁣⁣
  • Milwaukee MC122 PRO pH Controller - Image 1 of 2

    Milwaukee MC122 PRO pH Controller

    Brand New · Milwaukee
    PHP 8,370.41
    PHP 3,014.11 shipping
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  • NEPTUNE APEX TRIDENT PINCH VALVE SOLENOID - Image 1 of 4

    NEPTUNE APEX TRIDENT PINCH VALVE SOLENOID

    Brand New · Neptune
    PHP 2,224.21
    PHP 1,459.58 shipping
    21 watching
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  • PH Salinity TDS EC Temperature Meter Digital Water Quality 5 in 1 Monitor Tester - Image 1 of 4

    PH Salinity TDS EC Temperature Meter Digital Water Quality 5 in 1 Monitor Tester

    Brand New
    PHP 2,066.89
    Free shipping
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  • Milwaukee Instruments SMS122 PH Controller w/ PH Smart monitoring system - Image 1 of 3

    Milwaukee Instruments SMS122 PH Controller w/ PH Smart monitoring system

    Pre-Owned
    PHP 3,089.96
    or Best Offer
    PHP 1,635.43 shipping
    5 watching
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  • PH PROBE WITH BNC CONNECTOR, REPLACEMENT, AQUARIUM, MARINE METER, ELECTRODE UK - Image 1 of 4

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    PHP 364.61
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