Bloomstar ePAR Meter measures PPFD in the 400-750 nm range

The further development of the popular Bloomstar PAR Meter, now with ePAR sensor! The Bloomstar ePAR Meter measures the extended PPFD (photosynthetic photon flux density including far red) from 400-750 nm and also displays the corresponding DLI.

Why do you need an extended PAR measuring device?

The definition of photosynthetically active radiation has been expanded. Studies have shown that far-red light also contributes significantly to photosynthesis. The sensor detects the extended PAR range (extended PAR) of 400-750 nm, so that a meaningful measurement of light and radiation for plants is possible.

The measuring device for DLI and PPFD helps to recognise common errors such as hotspots, light stress or insufficient lighting and to take action. The number of photosynthetically active photons absorbed significantly determines the photosynthesis rate and therefore the yield in horticulture. If the lighting is set too high, high energy costs can be incurred. In this case, optimising the DLI saves money.

In plant lighting, the focus is increasingly on achieving homogeneous illumination. With the Bloomstar PAR meter, you can measure the PPFD to determine the Optimum hanging height and dimming level of your light. The device is also extremely practical for troubleshooting, checking ageing luminaires / light sources and doubts about the manufacturer's specifications.

Why measure ePAR?

• Extended spectrum coverageePAR meters measure wavelengths up to 750 nm and therefore cover far-red light. This is important as studies have shown that wavelengths in the 700-750 nm range contribute significantly to photosynthesis and plant growth. Conventional PAR meters exclude this range.
• Improved measurement of light utilisationThe inclusion of far-red light in the measurement range enables a more comprehensive understanding of light utilisation by plants. Far-red light influences the Emerson effect, in which the simultaneous absorption of red and far-red light increases the rate of photosynthesis.
• Understanding of plant morphology and photomorphogenesisFar-red light plays a role in the morphological response of plants, such as the elongation of nodes, leaf unfolding and flower formation. The measurement of far-red light can provide insights into the behaviour of plants under different light conditions.

Features of the Bloomstar ePAR Meter

With the spiral cable supplied, you can carry out PPFD measurements quickly and conveniently "by hand". A second, 5m long cable is included, for example to carry out stationary, longer-term measurements with the logging function (e.g. greenhouse). The sensor part has a 1/4″ thread for mounting on tripods and other devices.

You can always keep an eye on the measured values on the large LCD display. The Bloomstar extended PAR sensor is powered by two AAA batteries (included).

Specifications