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   Home » Saltwater Aquarium Supplies » Testing Equipment » Monitor Equipment » 79 items found
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American Marine Pinpoint pH Monitor


Protect your investment with American Marine Pinpoint Controllers & Monitors Using the most current technology and design, American Marine controllers and monitors have become the most respected line of digital instruments ...

Avg. Customer Review (14) reviews

Single Item Monitors & Controllers: See all items

Our Price: $89.99
Item Code: AM1111
Neptune Aquacontroller 3 (Backlight) w/ Temperature Probe


The AquaController III base unit contains all the necessary capabilities to monitor and control even the most demanding aquarium setup. All of the features described below are present in the base unit; there are no additional soft...

Avg. Customer Review (4) reviews

Multi Item Monitors & Controllers: See all items

Our Price: $299.99
Item Code: NS1181
American Marine Pinpoint pH Monitor Package


American Marine PINPOINT pH Monitor The PINPOINT pH Monitor™ is in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT pH Monitor™ requires only a ...

Avg. Customer Review (9) reviews

Single Item Monitors & Controllers: See all items

Our Price: $94.99
Item Code: AMPHMK
Portable pH Pen/Meter


This handy pH pen/meter is a great tool for any aquarist. It is extremely easy to use and is waterproof. Simply dip the meter in the solution to get the pH reading. Its high accuracy and resolution also make it suitable even for t...

Avg. Customer Review (3) reviews

Single Item Monitors & Controllers: See all items

Our Price: $59.99
Item Code: CP2131
American Marine Pinpoint II Calcium Monitor


The PINPOINT II Calcium Monitor™ is the only truly affordable and accurate digital Calcium measurement instrument. Powered by a 9-volt battery (not included) or the Pinpoint AC Adapter Kit (not included). The PINPOINT II Calcium M...


Our Price: $249.99
Item Code: AM1121
American Marine Pinpoint ORP Monitor


American Marine PINPOINT ORP Monitor PINPOINT ORP Monitor™ will measure the ORP (oxidation-reduction potential, or REDOX) of your system. It is popular with those who use ozone gas or potassium permanganate as an artificial ...

Avg. Customer Review (5) reviews

Single Item Monitors & Controllers: See all items

Our Price: $99.99
Item Code: AM1113
Neptune Systems Aqua Controller 3 Pro (no probe)


The AquaController III Pro base unit contains all the necessary capabilities to monitor and control even the most demanding aquarium setup. All of the features described below are present in the base unit; there are no additional ...

Avg. Customer Review (2) reviews

Multi Item Monitors & Controllers: See all items

Our Price: $499.99
Item Code: NS1171
American Marine Pinpoint pH Controller


American Marines PINPOINT pH Controller PINPOINT pH Controller™ is an inexpensive yet rugged controller, which includes the appropriate probe and calibration fluids. This device will automate another electrical device such as a c...

Avg. Customer Review (4) reviews

Single Item Monitors & Controllers: See all items

Our Price: $189.99
Item Code: AM1311
American Marine Pinpoint Salinity Monitor


American Marine PINPOINT Salinity Monitor PINPOINT Salinity Monitor™ will accurately and immediately measure the amount of salt in any marine or freshwater system. The reading is fully temperature compensated and the convers...

Avg. Customer Review (9) reviews

Single Item Monitors & Controllers: See all items

Our Price: $114.99
Item Code: AM1115
Hanna Instruments Phosphate (LR) Photometer with 890 nm LED


Phosphates are particularly important for the growth and development of plant roots, and hence are one of the most common fertilizers used in agriculture. In addition, phosphates are usually utilized in detergents and are needed,...

Avg. Customer Review (3) reviews

Single Item Monitors & Controllers: See all items

Our Price: $191.99
Item Code: HN1191
American Marine Pinpoint Nitrate Monitor


American Marine is proud to introduce the PINPOINT™ Nitrate Monitor. The only truly affordable and accurate digital Nitrate measurement instrument engineered for marine saltwater. The PINPOINT™ Nitrate Monitor has been designed as...

Avg. Customer Review (2) reviews

Single Item Monitors & Controllers: See all items

Our Price: $239.95
Item Code: AM1123
Neptune Systems AquaController Jr with Serial Port + Temperature Probe + DC8


The AquaController Jr - Backlight unit delivers the highest price performance ratio in the industry and brings truely affordable aquarium monitoring and control to tanks of all sizes. The AquaController Jr has the same great progr...

Avg. Customer Review (7) reviews

Multi Item Monitors & Controllers: See all items

Our Price: $224.99
Item Code: NS1165
Tunze Water Level Alarm 7607 / 2


The Tunze Water Level Alarm (7607/2) has three sensors: one run-dry protection sensor and two overflow sensors. Each sensor comes with a holding device which can be stuck with silicone or clamped to horizontal or vertical pan...

Avg. Customer Review (1) reviews

Single Item Monitors & Controllers: See all items

Our Price: $193.79
Item Code: TZ7191
Duo-ORpH Controller (Probe not Included)


Dual monitoring of pH and ORP with a large LED display and control of either pH or ORP. Highly accurate. Digital pH-ORP controller with large size LED display for easy reading. High input impedance avoid measuri...


Our Price: $149.00