Apogee MQ series quantum meters are designed for spot-check measurements, and calculation of daily light
integral (DLI; total number of photons incident on a planar surface over the course of a day) through the built-in
logging feature. To accurately measure PFFD incident on a horizontal surface, the sensor must be level. For this
purpose, each MQ model comes with a different option for mounting the sensor to a horizontal plane.
The AM-310 Sensor Wand accessory incorporates a mounting fixture at the end of an extendable telescopic wand
(up to 33 inches/84 cm). The wand is not suited for wet environments; however, it is excellent for greenhouses and
growth chambers. Its ability to retract to a smaller size also makes it ideal for travel use.
The AM-320 Saltwater Submersible Sensor Wand accessory incorporates a mounting fixture at the end of a 40 inch
segmented fiberglass wand and is well-suited for saltwater use. The wand allows the user to place the sensor in
hard to reach areas such as aquariums.
The AL-100 leveling plate is recommended
for use with the MQ-500 (AL-100 leveling
plate pictured). To facilitate mounting to a
cross arm, the AL-120 mounting bracket is
recommended.