Probes & Monitoring
![Neptune A3 Apex Neptune A3 Apex](https://cdn.shoplightspeed.com/shops/627036/files/50675597/500x500x2/image.jpg)
![Neptune A3 Apex Neptune A3 Apex](https://cdn.shoplightspeed.com/shops/627036/files/50675597/500x500x2/image.jpg)
![Neptune FMM FS-100 Flow Sensor | 1" Neptune FMM FS-100 Flow Sensor | 1"](https://cdn.shoplightspeed.com/shops/627036/files/27978452/500x500x2/image.jpg)
![Neptune FMM FS-100 Flow Sensor | 1" Neptune FMM FS-100 Flow Sensor | 1"](https://cdn.shoplightspeed.com/shops/627036/files/27978452/500x500x2/image.jpg)
C$84.99
(C$84.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune FMM FMK Fluid Monitoring Kit Neptune FMM FMK Fluid Monitoring Kit](https://cdn.shoplightspeed.com/shops/627036/files/27978832/500x500x2/image.jpg)
![Neptune FMM FMK Fluid Monitoring Kit Neptune FMM FMK Fluid Monitoring Kit](https://cdn.shoplightspeed.com/shops/627036/files/27978832/500x500x2/image.jpg)
C$269.99
(C$269.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune Neptune Breakout Box Neptune Neptune Breakout Box](https://cdn.shoplightspeed.com/shops/627036/files/32647412/500x500x2/image.jpg)
![Neptune Neptune Breakout Box Neptune Neptune Breakout Box](https://cdn.shoplightspeed.com/shops/627036/files/32647412/500x500x2/image.jpg)
C$53.99
(C$53.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune 1Link Neptune 1Link](https://cdn.shoplightspeed.com/shops/627036/files/27980697/500x500x2/image.jpg)
![Neptune 1Link Neptune 1Link](https://cdn.shoplightspeed.com/shops/627036/files/27980697/500x500x2/image.jpg)
![Neptune Probe | Conductivity Neptune Probe | Conductivity](https://cdn.shoplightspeed.com/shops/627036/files/27979469/500x500x2/image.jpg)
![Neptune Probe | Conductivity Neptune Probe | Conductivity](https://cdn.shoplightspeed.com/shops/627036/files/27979469/500x500x2/image.jpg)
C$168.99
(C$168.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune FMM 24VDC 36w Power Supply Neptune FMM 24VDC 36w Power Supply](https://cdn.shoplightspeed.com/shops/627036/files/27978302/500x500x2/image.jpg)
![Neptune FMM 24VDC 36w Power Supply Neptune FMM 24VDC 36w Power Supply](https://cdn.shoplightspeed.com/shops/627036/files/27978302/500x500x2/image.jpg)
C$39.99
(C$39.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune FMM LD1 Leak Detector | Low Profile Neptune FMM LD1 Leak Detector | Low Profile](https://cdn.shoplightspeed.com/shops/627036/files/27978167/500x500x2/image.jpg)
![Neptune FMM LD1 Leak Detector | Low Profile Neptune FMM LD1 Leak Detector | Low Profile](https://cdn.shoplightspeed.com/shops/627036/files/27978167/500x500x2/image.jpg)
C$39.99
(C$39.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune ADM Apex Display Module Neptune ADM Apex Display Module](https://cdn.shoplightspeed.com/shops/627036/files/27977391/500x500x2/image.jpg)
![Neptune ADM Apex Display Module Neptune ADM Apex Display Module](https://cdn.shoplightspeed.com/shops/627036/files/27977391/500x500x2/image.jpg)
C$134.99
(C$134.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![EcoTech EcoTech Reef Link EcoTech EcoTech Reef Link](https://cdn.shoplightspeed.com/shops/627036/files/28395324/500x500x2/image.jpg)
![EcoTech EcoTech Reef Link EcoTech EcoTech Reef Link](https://cdn.shoplightspeed.com/shops/627036/files/28395324/500x500x2/image.jpg)
C$149.99
(C$149.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Fluval Digital Thermometer Fluval Digital Thermometer](https://cdn.shoplightspeed.com/shops/627036/files/27212018/500x500x2/image.jpg)
![Fluval Digital Thermometer Fluval Digital Thermometer](https://cdn.shoplightspeed.com/shops/627036/files/27212018/500x500x2/image.jpg)
C$17.99
(C$17.99 Incl. tax)
in stock
Protect your fish from unsafe water temperatures with the fully submersible Fluval Digital Aquarium Thermometer.
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Ordered before 14:00, delivered tomorrow.
![Fluval Digital Thermometer 2 in 1 Fluval Digital Thermometer 2 in 1](https://cdn.shoplightspeed.com/assets/blank.gif?2023-05-22)
![Fluval Digital Thermometer 2 in 1 Fluval Digital Thermometer 2 in 1](https://cdn.shoplightspeed.com/assets/blank.gif?2023-05-22)
C$18.99
(C$18.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune Liquid Level Sensor (LLS) | 23" Neptune Liquid Level Sensor (LLS) | 23"](https://cdn.shoplightspeed.com/shops/627036/files/50674502/500x500x2/image.jpg)
![Neptune Liquid Level Sensor (LLS) | 23" Neptune Liquid Level Sensor (LLS) | 23"](https://cdn.shoplightspeed.com/shops/627036/files/50674502/500x500x2/image.jpg)
C$104.99
(C$104.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Liquid Level Sensor (LLS) | 4" Neptune Liquid Level Sensor (LLS) | 4"](https://cdn.shoplightspeed.com/shops/627036/files/50674660/500x500x2/image.jpg)
![Neptune Liquid Level Sensor (LLS) | 4" Neptune Liquid Level Sensor (LLS) | 4"](https://cdn.shoplightspeed.com/shops/627036/files/50674660/500x500x2/image.jpg)
C$58.99
(C$58.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Magnetic Optical Sensor (MOS) Neptune Magnetic Optical Sensor (MOS)](https://cdn.shoplightspeed.com/shops/627036/files/50674863/500x500x2/image.jpg)
![Neptune Magnetic Optical Sensor (MOS) Neptune Magnetic Optical Sensor (MOS)](https://cdn.shoplightspeed.com/shops/627036/files/50674863/500x500x2/image.jpg)
C$51.99
(C$51.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Liquid Level Sensor (LLS) | 35" Neptune Liquid Level Sensor (LLS) | 35"](https://cdn.shoplightspeed.com/shops/627036/files/50674516/500x500x2/image.jpg)
![Neptune Liquid Level Sensor (LLS) | 35" Neptune Liquid Level Sensor (LLS) | 35"](https://cdn.shoplightspeed.com/shops/627036/files/50674516/500x500x2/image.jpg)
C$136.99
(C$136.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Liquid Level Sensor (LLS) | 15" Neptune Liquid Level Sensor (LLS) | 15"](https://cdn.shoplightspeed.com/shops/627036/files/50674489/500x500x2/image.jpg)
![Neptune Liquid Level Sensor (LLS) | 15" Neptune Liquid Level Sensor (LLS) | 15"](https://cdn.shoplightspeed.com/shops/627036/files/50674489/500x500x2/image.jpg)
C$77.99
(C$77.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Optical Multi-Surface Leak Sensor (LD-3) Neptune Optical Multi-Surface Leak Sensor (LD-3)](https://cdn.shoplightspeed.com/shops/627036/files/50674789/500x500x2/image.jpg)
![Neptune Optical Multi-Surface Leak Sensor (LD-3) Neptune Optical Multi-Surface Leak Sensor (LD-3)](https://cdn.shoplightspeed.com/shops/627036/files/50674789/500x500x2/image.jpg)
C$51.99
(C$51.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune A3 Apex Jr Neptune A3 Apex Jr](https://cdn.shoplightspeed.com/shops/627036/files/50674946/500x500x2/image.jpg)
![Neptune A3 Apex Jr Neptune A3 Apex Jr](https://cdn.shoplightspeed.com/shops/627036/files/50674946/500x500x2/image.jpg)
![Neptune A3 Apex Pro Neptune A3 Apex Pro](https://cdn.shoplightspeed.com/shops/627036/files/50675385/500x500x2/image.jpg)
![Neptune A3 Apex Pro Neptune A3 Apex Pro](https://cdn.shoplightspeed.com/shops/627036/files/50675385/500x500x2/image.jpg)
C$1,276.99
(C$1,276.99 Incl. tax)
out of stock
Ordered before 14:00, delivered tomorrow.
![Neptune Neptune pH or ORP, Temperature Expansion PM1# Neptune Neptune pH or ORP, Temperature Expansion PM1#](https://cdn.shoplightspeed.com/assets/blank.gif?2023-05-22)
![Neptune Neptune pH or ORP, Temperature Expansion PM1# Neptune Neptune pH or ORP, Temperature Expansion PM1#](https://cdn.shoplightspeed.com/assets/blank.gif?2023-05-22)
C$114.99
(C$114.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune LDK Leak Detection Kit Neptune LDK Leak Detection Kit](https://cdn.shoplightspeed.com/shops/627036/files/27981017/500x500x2/image.jpg)
![Neptune LDK Leak Detection Kit Neptune LDK Leak Detection Kit](https://cdn.shoplightspeed.com/shops/627036/files/27981017/500x500x2/image.jpg)
C$202.99
(C$202.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune Calibration pH 7.00 | Single use Neptune Calibration pH 7.00 | Single use](https://cdn.shoplightspeed.com/shops/627036/files/27980561/500x500x2/image.jpg)
![Neptune Calibration pH 7.00 | Single use Neptune Calibration pH 7.00 | Single use](https://cdn.shoplightspeed.com/shops/627036/files/27980561/500x500x2/image.jpg)
C$4.49
(C$4.49 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.
![Neptune Calibration Salinity 53,000μs | 20ml Neptune Calibration Salinity 53,000μs | 20ml](https://cdn.shoplightspeed.com/shops/627036/files/27980537/500x500x2/image.jpg)
![Neptune Calibration Salinity 53,000μs | 20ml Neptune Calibration Salinity 53,000μs | 20ml](https://cdn.shoplightspeed.com/shops/627036/files/27980537/500x500x2/image.jpg)
C$6.99
(C$6.99 Incl. tax)
in stock
Ordered before 14:00, delivered tomorrow.