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Apogee MQ-500 Quantum PAR meter

£499.95 £474.49
Unit price
per 
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Apogee MQ-500 Quantum PAR meter

A high-quality, robust and effective quantum sensor for measuring light intensity levels. The MQ-500 is a 'full-spectrum' option (389 to 692 nm ± 5 nm) and our 'go-to' sensor; recommended for both hobbyists and professionals alike.

 

Apogee are quickly becoming well known and respected in the industry for manufacturing - amongst other laboratory-grade measuring equipment - high-quality, extremely accurate horticultural lighting sensors. Whether you're a hobby grower or a large scale professional, we've got you covered with a fantastic range of Apogee Sensors to fit every grower's requirement. 

The MQ-500 quantum meter is the tool of choice for scientists all over the world to accurately measure photosynthetically active radiation from all light sources. It has a hand-held meter, attached via cable, that displays and stores measurements. The sensor incorporates a blue-enhanced silicon photodiode and custom optical filters with a rugged, self-cleaning sensor housing design, anodized aluminium body with acrylic diffuser. Typical applications include PPFD measurement over plant canopies in outdoor environments, greenhouses, and growth chambers, and reflected or under-canopy (transmitted) PPFD measurements in the same environments. Quantum sensors are also used to measure PAR/PPFD in aquatic environments, including salt water aquariums where corals are grown.

How is the MQ-500 different to the original Apogee sensors?

The MQ-500 is a full spectrum quantum sensor with a spectral range of 389 to 692 nm ± 5 nm, which can be seen in the graph below. This improved spectral response of this new meter increases the accuracy of LED measurements when compared to our previous original models.

 The meter has a sample and log mode, and will record an integrated daily total in mol m-2 d-1. Sample mode will record up to 99 manual measurements. Log mode will power the meter on/off to make a measurement every 30 seconds. Every 30 minutes the meter will average the sixty 30 second measurements and record the averaged value to memory. The meter can store up to 99 averages, once full it will start to overwrite the oldest measurement with new ones. An integrated daily total will be recorded from the 48 averaged measurements (making a 24 hr period). Sample and log measurements can be reviewed on the LCD display or by downloading the data to a computer, however, the integrated daily total can only be viewed by downloading the data to a computer. Downloading data to a computer requires the AC-100 communication cable (a standard USB cable will not work) and ApogeeAMS software

What's in the box?

  • Apogee mq-500 PAR Meter
  • Battery

 

Our Warranty

This product comes with a 4 year replacement Warranty from the date of purchase. Rest assured that if your product does develop a fault during this period, it will be replaced at our expense (from UK stock) ASAP. If a replacement isn't available, a full refund will be offered.

 

 Specifications

 Calibration Uncertainty

± 5 %

Measurement Range

0 to 4000 µmol mˉ² sˉ¹
Measurement Repeatability Less than 0.5 %
Non-stability (Long-term drift) Less than 2 % per year
Non-linearity Less than 1 % (up to 4000 µmol mˉ² sˉ¹ )
Response Time Less than 1 ms
Field of view 180 ˚
Spectral Range 389 nm to 692 nm (wavelengths where response is greater than 50 % of maximum)
Spectral Selectivity Less than 10 % from 412 to 682 nm ± 5 nm
Directional (Cosine) Response ± 5 % at 75 ˚ zenith angle
Azimuth Error Less than 0.5 %
Tilt Error
Temperature Response 0.06 ± 0.06 % per C
Uncertainty in Daily Total Less than 5 %
Detector Blue-enhance silicon photodiode
Housing Anodized aluminium body with acrylic diffuser
IP Rating IP68
Operating Environment 0 to 50 C, less than 90 % non-condensing relative humidity up to 30 C, less than 70 % non-condensing relative humidity from 30 to 50 C, separate sensors can be submerged in water up to depths of 30 m
Meter Dimensions 126 mm length, 70 mm width, 24 mm height
Mass 100 g (with 5m of lead wire)
Cable 2 m of two conductor, shielded, twisted-pair wire; additional cable available; TPR jacket
Warranty 4 years against defects in materials and workmanship

 

BATTERIES INCLUDED

 

Additional Resources

 

 

Apogee MQ-500 Quantum PAR meter