Spot-On Quantum PAR Meter – Accurate Light Meter for Indoor Plants & Grow Lights

The Spot-On Quantum PAR Meter is a precision tool designed for indoor plant growers, hydroponic setups, and greenhouse environments. It accurately measures PAR (Photosynthetically Active Radiation) to help you optimise your lighting setup and achieve healthier, faster-growing plants.

Whether you're using LED grow lights, HPS, or natural sunlight, this compact meter gives instant, reliable PPFD (photosynthetic photon flux density) readings to ensure your plants are getting the right amount of light for strong vegetative growth and higher yields.

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🔍 Why Use the Spot-On Quantum PAR Meter?

• ✅ Accurate PAR Readings (400–700 nm range) for all types of grow lights

• ✅ Instant PPFD measurement in µmol/m²/s

• ✅ Compatible with LED, HPS, MH, CMH, and sunlight

• ✅ Designed for indoor plant care, grow tents, and greenhouses

• ✅ Helps you find the ideal light position and intensity for optimal photosynthesis

• ✅ Calibrated sensor + auto power-off for battery efficiency

• ✅ Small, handheld design—easy to use and carry

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💡 Ideal For:

• Indoor plant growers (Monstera, Alocasia, Philodendron, etc.)

• Hydroponics & coco growers

• Light mapping in grow tents

• Greenhouse monitoring

• Ensuring uniform light distribution

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⚙️ Specifications:

• Range: 0–2,000 µmol/m²/s

• Spectral Range: 400–700 nm (PAR)

• Sensor Type: Cosine-corrected silicon photodiode

• Battery: CR2032 coin cell (included)

• Auto-Off: After 2 minutes

• Form Factor: Lightweight handheld unit

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Maximise your indoor garden’s performance by giving your plants the light they need—no more guesswork. The Spot-On Quantum PAR Meter is an essential tool for serious growers who want to grow smarter, not harder.

Download the Spot-On Quantum Par Meter Manual