Designed by world-renowned crop physiologist, Bruce Bugbee, PhD, the Apogee MQ-200X "original" quantum meter features Apogee's older and more economical photodetector that is excellent for measuring photosynthetically active radiation (PAR) accurately under sunlight, metal halide, and high-pressure sodium lights. For measuring other light sources, including LEDs, we recommend using our newer full-spectrum or ePAR sensors.
Unlike cheaper LUX or footcandle sensors which are sometimes marketed as grow light meters, but are meant for measuring light for human vision, our meters feature a laboratory-grade photosynthetic photon flux density (PPFD) optical detector precisely calibrated to measure the light intensity in µmol m-2 s-1 of the specific color wavelengths emitted by sunlight, MH, and HPS lights that are used by plants for photosynthesis.
The meter combines the intensity of all photons between 400 and 700 nm under sunlight, metal halide, and high pressure sodium lights to give a single PAR reading in µmol m-2 s-1 within 5 % uncertainty. Unlike hobby-grade PAR meters that are sometimes accurate out of the box, but then lose their calibration quickly, Apogee meters have an accurate and stable calibration with an industry-leading drift rate of less than 2% per year.
Specifications | |
---|---|
Field of View | 180˚ |
Spectral Range | 370 nm to 650 nm |
Operating Environment | 0 to 50 C |
Meter Dimensions | 126 mm length, 70 mm width, 24 mm eight |
Designed by world-renowned crop physiologist, Bruce Bugbee, PhD, the Apogee MQ-200X "original" quantum meter features Apogee's older and more economical photodetector that is excellent for measuring photosynthetically active radiation (PAR) accurately under sunlight, metal halide, and high-pressure sodium lights. For measuring other light sources, including LEDs, we recommend using our newer full-spectrum or ePAR sensors.
Unlike cheaper LUX or footcandle sensors which are sometimes marketed as grow light meters, but are meant for measuring light for human vision, our meters feature a laboratory-grade photosynthetic photon flux density (PPFD) optical detector precisely calibrated to measure the light intensity in µmol m-2 s-1 of the specific color wavelengths emitted by sunlight, MH, and HPS lights that are used by plants for photosynthesis.
The meter combines the intensity of all photons between 400 and 700 nm under sunlight, metal halide, and high pressure sodium lights to give a single PAR reading in µmol m-2 s-1 within 5 % uncertainty. Unlike hobby-grade PAR meters that are sometimes accurate out of the box, but then lose their calibration quickly, Apogee meters have an accurate and stable calibration with an industry-leading drift rate of less than 2% per year.
Specifications | |
---|---|
Field of View | 180˚ |
Spectral Range | 370 nm to 650 nm |
Operating Environment | 0 to 50 C |
Meter Dimensions | 126 mm length, 70 mm width, 24 mm eight |