Neptune PMK PAR Monitoring Kit

Monitor Aquarium Light Levels with Precision

The Neptune PMK PAR Monitoring Kit allows you to continuously measure and log your aquarium’s light intensity, helping ensure your corals and plants receive the optimal PAR (Photosynthetically Active Radiation) for healthy growth.

Whether you're fine-tuning your lighting setup or preventing coral bleaching, the PMK makes light monitoring accurate, effortless, and unobtrusive.

Key Features & Benefits

• 24/7 PAR Monitoring – Track lighting levels day and night

• Measure Actual PAR – Monitors only the wavelengths corals and plants use (400–700nm)

• Prevents Coral Burn – Avoid overexposure and bleaching

• Includes ASM Module – Future-ready with expanded sensor compatibility

• Hidden Design – Sensor concealed inside natural-looking Real Reef Rock

• Integrates with Apex – View historical lighting data and make informed adjustments in Apex Fusion

Continuous PAR Monitoring for Reef Aquariums

The PMK helps you precisely control your lighting system. With real-time PAR tracking and detailed logging, you can tailor your lighting schedule to your tank's specific needs — and review past light performance whenever needed.

Prevent Coral Bleaching & Optimize Plant Growth

Human eyes can't always detect dangerously high light levels, but your corals will feel it. With the PMK, you can:

• Avoid accidentally overexposing corals to intense light

• Customize light intensity by coral type

• Create safe, ideal lighting zones across your tank

Seamless Integration with Apex Systems

If you're using an Apex to control your lighting, the PMK becomes even more powerful. Overlay historical PAR data within Apex Fusion’s lighting wizard and easily visualize the effect of any adjustments.

What's Included

• ASM – Advanced Sensors Module

• NPS – Neptune PAR Sensor

• Real Reef Rock Sensor Housing

• 6′ AquaBus Cable

Requirements

• Compatible with Apex, Apex Lite, or Apex Jr.