ITC Reefculture PARwise PRO Light Meter

Revolutionary cPUR Technology Measures What Corals Actually Use

The PARwise PRO replaces outdated PAR measurements with cPUR (Coral Photosynthetically Usable Radiation), a groundbreaking technology that measures only the wavelengths and intensities corals can actually use for photosynthesis and growth. With an extended spectral range of 350nm to 1100nm (Near UV-A through infrared), it reveals wasted energy, detects heat waste, and provides pigment-level analysis to help you optimize every aspect of your lighting. Compatible with Android, PC, and Mac, and precise enough to pay for itself by saving just one coral.

Highlights:

• Revolutionary cPUR measurement — coral-specific usable light, replacing outdated PAR
• Extended 350–1100nm spectral range — Near UV-A through infrared
• Pigment analysis — Peridinin, Fucoxanthin, Chlorophyll A/B/C/D, Beta-carotene
• 12+ measurement parameters — cPUR, PAR, LUX, DLI, Kelvin, CQS, CRI, YPF, and more
• Environment-specific calibrations — air, freshwater, and saltwater
• Detects heat waste — identifies inefficient lighting in the IR range
• Optimal coral placement — map light zones and match corals to their requirements
• YPF measurement included — cPUR equivalent for planted aquariums
• Lab-grade accuracy with a user-friendly browser-based interface (Chrome or Edge, free)
• Works with Android (USB OTG), Windows PC, and Mac — device not included
• ⚠️ Not compatible with iPhone or iPad

Why cPUR Outperforms PAR

Traditional PAR meters measure total photosynthetic light without distinguishing usable wavelengths — you can have high PAR readings that are essentially useless to your corals. cPUR weights measurements by coral pigment absorption, giving you a true picture of the light your corals can actually utilize. The result: smarter placement, better growth, and no more guessing.

PARwise PRO is Ideal for:

• Reef aquarists optimizing coral growth and coloration
• SPS and LPS coral keepers seeking spectrum optimization
• Professional coral propagation and farming operations
• Planted aquarium enthusiasts (YPF measurement included)
• Aquarium stores and lighting manufacturers
• Anyone ready to move beyond spectrum-blind PAR meters

Comprehensive Measurements (12+ Parameters):

• cPUR: Coral-specific usable light
• Spectrum: Complete wavelength distribution (350-1100nm)
• PAR (PPFD): Traditional photosynthetic measurement
• LUX: Standard light intensity
• DLI: Daily Light Integral
• cPUR Light Integral: Coral-specific daily measurement
• Kelvin: Color temperature
• YPF: Yield Photon Flux (plant equivalent of cPUR)
• CQS: Color Quality Scale
• CRI: Color Rendering Index
• Purity: Spectral purity measurement
• Dominant Wavelength: Primary spectral peak
• CIE X/Y: Color space coordinates

Online exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.