Maxibright PAR Metre

Product detailed description

Maxibright Quantum PAR metre: measure how much light plants really receive

A PAR metre is a measuring instrument for growers who want to know the actual light intensity in their tent instead of figures from a catalogue. The quantum sensor measures PAR and PPFD - that is, photosynthetically usable light falling on plants - in a range from 0 to 3999 µmol/m2/s with repeatability of ±1 µmol/m2/s. The MBPAR01 model measures independently of the lighting manufacturer, so you can compare different lamps on the same basis and verify whether the declared output matches reality.

What the PAR metre is for

Without measuring, you are guessing - with a PAR metre, you know. You will find out whether plants at the edges of the tent are getting enough light, at what height to hang the light, where dark spots are forming and when it makes sense to add or reduce power. You can verify PPFD maps from manufacturers and fine-tune the light conditions exactly according to the growth stage. With more expensive lights, the instrument pays for itself by helping you get the maximum from them and avoid burning plants through excessive light.

Parameters

• Type: quantum PAR/PPFD metre (model MBPAR01)
• Measuring range: 0-3999 µmol/m2/s
• Repeatability: ±1 µmol/m2/s
• Display: large LCD
• Sensor: separate, with 1/4" thread for tripod
• Cables: straight and coiled for connecting the sensor
• Functions: zeroing, value recording, factory reset
• Power supply: AAA batteries
• In the package: metre, sensor, both cables, AAA batteries, manual

Is it worth investing in a PAR metre?

A PAR metre is a one-off investment that pays off with every additional light and every adjustment to the tent. Instead of guessing from marketing figures, you measure real values and make decisions based on them - where to hang the lamp, how to set dimming, whether the light you bought really shines as promised. Mounting the sensor on a tripod with a 1/4" thread and the two included cables make precise measurement at any point of the area easier. You can find more light metres in the Light Metres section.

Frequently asked questions

What does a PAR metre measure and in what units?

A PAR metre measures PPFD, that is, the density of the flow of photosynthetically active radiation falling on an area, in units of µmol/m2/s. This is the light that plants actually use for photosynthesis. The MBPAR01 model handles a range from 0 to 3999 µmol/m2/s with repeatability of ±1 µmol/m2/s, which covers both weak and very intense grow lighting.

Will a PAR metre measure light from any light?

Yes. The quantum sensor measures incoming PAR independently of the type and brand of source, so you can compare LED panels, discharge lamps and daylight on the same basis. That is precisely its main benefit: the figures are not influenced by lamp manufacturers' marketing. You measure the real intensity at a specific point in the tent and adjust the height or power of the light accordingly.

How do you use a PAR metre to set a light?

You place the sensor at the level of the plant tops, ideally on a tripod with a 1/4" thread, and read the value on the display. You measure several points across the area - the centre and the corners - and find out where there is enough light and where it is lacking. Based on the measured µmol/m2/s, you then adjust the hanging height or dimming level. The value recording function makes it easier to compare multiple locations.