The MQ-510 quantum meter is designed for underwater PAR measurements and already applies the sensor's immersion effect correction factor to the meter readings through firmware. The meter provides excellent measurements under all light sources, including LEDs. The meter consists of a waterproof quantum sensor attached via waterproof cable to a handheld meter. The waterproof sensor incorporates a blue-enhanced silicon photodiode and custom optical filters with a rugged, anodized aluminum body with acrylic diffuser. The underwater quantum sensor is typically used in salt water aquariums where corals are grown. Note: The handheld meter is not waterproof, only the sensor and cable are waterproof.

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.


Calibration Uncertainty: ± 5 %
Measurement Range: 0 to 4000 µmol m-2 s-1
Measurement Repeatability: Less than 0.05 %
Long-term Drift (Non-stability): Less than 2 % per year
Non-linearity: Less than 1 % (up to 4000 µmol m-2 s-1)
Response Time: Less than 1 ms
Field of View: 180 °
Spectral Range: 389 to 692 nm ± 5 nm ( wavelengths where responsis greater than 50 %)
Spectral Selectivity: Less than 10 % from 412 to 682 nm ± 5 nm
Directional (Cosine) Error: Less than ± 5 % at 75° zenith anglean 10 % from 412 to 682 nm ± 5 nm
Azimuth Error: Less than 0.5 %
Tilt Error: Less than 0.5 %
Temperature Response: -0.11 ± 0.04 % C-1
Uncertainty in Daily Totals: Less than 5 %
Detector: Blue-enhanced silicon photodiode
Housing: Anodized aluminum body with acrylic diffuser
IP Rating: IP68
Operating Environment: 0 to 50 C; less than 90 % non-condesing 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 eight
Sensor Dimensions: 24 mm diameter; 37 mm height
Mass: 180 g
Cable: 2 m of two conductor, shielded, twisted-pair wire; addititonal cable wire available; santoprene rubber jacket

Apogee MQ-510 Par Meter Rental Policy

Our rental period is 7 days from the day it is delivered to your door to the day the return tracking number becomes active, so you get a full week to measure PAR readings and adjust your lighting. If you need to keep the meter and wand for more than a week then no problem; the same weekly rental fee of $65.99 applies to each week you need to keep the meter. When you're ready to send the PAR meter and wand back, just let us know by email (customerservice@aquariumspecialty.com) or by phone (803) 788-4445 and we will have a return shipping label sent to your email address. Simply repackage the meter & wand then drop it off at any UPS location. *Deposits are fully refundable, provided the meter is in transit within the initial 7-day rental period. The meter and wand must be in good working condition. Each additional reantal week will incur an additional $65.99 charge, which will be deducted from the initial deposit. Deposits can be refunded back to your original method of payment or back to your Reward Points account; the choice is yours. Our rental program is only available within the lower 48 US States.

Terms & Conditions

Renter shall indemnify and hold harmless Aquarium Specialty, Inc. from any and all claims, demands, causes of actions, liability, loss, damage and/or injury of any kind arising out of any acts, omissions, negligence, or willful misconduct on the part of the renter. This agreement shall be governed exclusively by the laws of South Carolina.