PINPOINT® monitors and controllers represent the gold standard in affordable precision aquatic monitoring technology. Developed by American Marine Inc., these instruments deliver laboratory-grade accuracy in durable, user-friendly designs specifically engineered for aquarium and aquaculture applications.

Each PINPOINT® device undergoes rigorous quality control to ensure reliability in critical water quality management. Built with high-quality components and backed by a comprehensive 2-year warranty, these instruments provide precise measurements that aquarists and aquaculture professionals can depend on.

The PINPOINT® line features intuitive operation with clear digital displays, reliable probes, and consistent performance. Whether you're maintaining a delicate reef ecosystem, raising prize koi, or managing commercial aquaculture operations, PINPOINT® provides the accurate data and reliable control needed for success.

These instruments are designed for real-world use with features like high-suppression cables, durable waterproof components, and long battery life. The complete system of monitors and controllers work seamlessly together, allowing for comprehensive water quality management across all critical parameters.

PINPOINT® Monitors

PINPOINT® monitors deliver precise, reliable measurements of essential water parameters in a portable, affordable format. Each monitor is designed for accuracy, ease of use, and long-term reliability, with most featuring 9V battery operation for convenience and portability, optional AC adapters for continuous use, and specialized probes calibrated for accurate readings in aquatic environments.

PINPOINT® ORP Monitor

• Measures ORP (oxidation-reduction potential/REDOX) of aquatic systems
• Full range instrument (-2,000 to +2,000 mV) with 1mV digital resolution
• Popular for monitoring ozone gas, potassium permanganate, or hydrogen rich water
• Includes platinum sensor electrode, calibration fluid, and cleaning strip
• 10-foot high suppression cable with BNC connector
• Powered by standard 9-volt battery (not included)
• Optional AC adapter available

PINPOINT® pH Monitor

• Only full-time pH monitor with .01 resolution
• Complete with probe and calibration fluids
• Used by thousands of customers worldwide
• 10-foot high suppression cable with BNC connector
• Powered by standard 9-volt battery (not included)
• Optional AC adapter and extension cables available

PINPOINT® Salinity Monitor

• Accurately measures salt content in marine or freshwater systems
• Fully temperature compensated (superior to hydrometers)
• Includes calibration fluid (53.0 MS = 1.026SG) and conversion chart
• Especially useful for Koi and saltwater aquariums
• Powered by standard 9-volt battery (not included)

PINPOINT® II Oxygen Monitor

• Measures dissolved oxygen in % or ppm (range: 00.0-20.0 ppm)
• High-performance polarographic probe with Teflon membrane caps
• Includes monitor, probe with 5-foot cable, extra membrane cap, and electrolyte fluid
• #1 preferred oxygen monitor in aquaculture industry
• Competes with meters in the higher price range

PINPOINT® II Calcium Monitor

• Only affordable and accurate digital calcium measurement for marine saltwater
• Solid state probe for increased stability and accuracy
• Operates approximately 150 hours on a 9-volt battery
• 5-foot high suppression cable with BNC connector
• Ideal for precision spot testing with continuous monitoring capabilities

PINPOINT® Nitrate Monitor

• Precise nitrate measurement for marine saltwater
• Two measurement ranges: Low (1-10 ppm) and High (10-100 ppm)
• 1 ppm resolution in either scale
• Includes meter, probe, and calibration fluids (1ppm, 10ppm, 100ppm)
• Designed as a precision spot-testing instrument

PINPOINT® Conductivity Monitor

• Measures hardness in freshwater (33 µS=17.9 ppm=1dH)
• Automatically temperature-compensated with two measurement ranges
• Perfect for RO/DI water testing (good RO water: 5-15 µS, DI water: 0-1 µS)
• Features permanent probe that rarely needs replacement
• Instant readings for precise hardness measurement

PINPOINT® Calibration Thermometer

• Precise digital thermometer with large range calibration feature
• Lab-grade waterproof thermistor fiber with triple mini-jack connection
• 10-foot cable and replaceable NIST referenced probe
• Powered by two AAA batteries (18-24 months continuous operation)

PINPOINT® Wireless Thermometer

• Displays temperature in °F or °C from remote waterproof sensors
• Accepts up to 4 remote sensors for monitoring multiple locations
• Transmission range up to 100 feet (30 meters) in optimal conditions
• 2-year battery life (two AAA batteries per unit, not included)

PINPOINT® Controllers

PINPOINT® ORP Controller

• Controls ozonizers or ozone generators up to 3 amps at 240V
• Complete with platinum ORP probe and storage bottle
• Perfect for automating ozone in aquariums
• 240V version for international use

PINPOINT® pH Controller

• Controls two devices simultaneously (CO2 solenoids, hydroponic pumps)
• Controls pH in both upward and downward directions
• User-selectable setpoint and acceptable pH range
• Handles up to 3 amps at 240V
• Excellent for planted aquariums, calcium reactors, and hydroponic systems
• 240V version for international use

PINPOINT® Temperature Controller

• 230 VAC Capacity: from 1/10 up to 2 hp/750 watts chiller and/or heater up to 750 watts
• 1/10 degree resolution (e.g., 78.6°F)
• Fully programmable setpoints for precise temperature control
• Never needs calibration
• Ideal for larger reef systems
• 230V version for international use

All products feature PINPOINT®'s durability, with proper care designed to last a lifetime, and come with American Marine's 2-year warranty.