Take control of your grow lighting with the Maxibright Quantum PAR Meter – a precision tool designed to measure real Photosynthetically Active Radiation (PAR), the light your plants actually use to grow. Whether you’re a hobbyist or a professional, this meter gives you the clarity to make informed lighting decisions without relying on manufacturer claims.

PAR meters are an essential piece of equipment when growing indoors. You wouldn't guess your nutrient EC or environment. Why risk not knowing what lighting levels you're running? Using the correct light levels can also improve yields by maximising photons per square meter.

Features:

• Measures PAR (μmol/m²/sec) with exceptional accuracy
• Wide measurement range: 0 to 3999 μmol/m²/sec
• ±1 μmol/m²/sec repeatability for consistent results
• Large, easy-to-read LCD display
• Lightweight, tripod-compatible sensor
• Simple zero calibration, data logging, and factory reset functions

What’s in the Box:

• Main meter unit
• Precision sensor (¼” screw mount compatible)
• Coiled and straight sensor cables
• AAA batteries
• User manual
• Now comes with a telescopic wand, allowing you to take readings from anywhere in the grow area

Designed for use in grow rooms, greenhouses, and grow shops, the MBPAR01 helps you validate PPFD maps, compare different fixtures (including LED), and fine-tune your lighting setup with confidence.

No guesswork. No marketing spin. Just clear, reliable data – from Maxibright.

Wide PAR Range

The Maxibright Quantum PAR PPFD Meter is designed to measure PAR (Photosynthetically Active Radiation) flux in wavelengths ranging from 400 to 700nm. There is a positive proportional relationship between the number of photons absorbed in 400 to 700nm band and the rate of photosynthesis, important for maximising crop yield.  

Measurements	Specification
Repeatability	1 mmol/m2/s
Measurement Range	0-3999 mmol/m2/s
Wavelength	400 – 700nm ±10nm

 

Need More Information?

Check out our blog on LED hanging height to give you a guide on how to use your par meter.

Frequently Asked Questions?

Q. What is a PAR meter?

A. A PAR PPFD meter is a device used to measure the amount of photosynthetically active radiation (PAR) that plants receive. PAR refers to the range of light wavelengths from 400 to 700 nanometers that plants use for photosynthesis.

Q. What does a PAR meter do?

A. In essence, a PAR PPFD meter helps in assessing the light conditions for plant growth by measuring the intensity of usable light. This is particularly important in controlled environments such as greenhouses, indoor grow rooms, and agricultural research, where optimising light conditions can significantly impact plant health and productivity. PAR meters typically consist of a sensor that detects the light intensity and a display unit that shows the PPFD value.

Q. What does PPFD Mean?

A. PPFD stands for Photosynthetic Photon Flux Density, which quantifies the number of photons in the PAR range that hit a square meter per second (measured in micromoles per square meter per second, or µmol/m²/s).

Q. Why use a PAR meter?

A. Using a PAR meter is essential for optimising plant growth, particularly in horticulture, agriculture, and plant research. These meters measure the light available for photosynthesis, ensuring plants receive the right amount of light to promote healthy growth and maximise yields. In indoor growing environments, PAR meters help adjust artificial lighting to provide the correct intensity and distribution, ensuring plants get uniform and adequate light without wasting energy. This consistent light level improves crop quality and quantity, affecting aspects like smell, flavour and density.