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MQ-510 Underwater Photosynthetically Active Radiation (PAR) Meter
MQ-510 Underwater Photosynthetically Active Radiation (PAR) Meter
Origin of place United States
Model MQ-510
Supplier DIANJIANG GROUP LIMITED.
Price
Hits 504
Updated 8/5/2026
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Application:

The MQ-510 underwater quantum meter is specifically designed for underwater photosynthetically active radiation (PAR) measurement. It is suitable for measuring most light sources, including LED lights. The immersion effect correction factor has already been applied to the meter readings through firmware. The quantum sensor can operate normally underwater, and measurement data is displayed via a handheld meter. The quantum sensor is connected to the handheld meter through a waterproof cable. The MQ-510 underwater quantum meter includes a handheld meter and a dedicated quantum sensor, which is sealed in a vacuum dome and connected to a specially designed aluminum housing via a waterproof cable. The MQ series meters support both manual and automatic data logging modes, facilitating convenient on-site measurement and daily data analysis. An AL-100 stainless steel leveling plate can be optionally equipped for the MQ-210X to ensure the sensor remains level when mounted on a crossarm.

Note: The handheld meter is not waterproof; only the sensor and cable are waterproof.

The MQ-510 features data logging capability, capable of recording 99 manual measurement data points. In automatic mode, the meter measures every 30 seconds and stores an average value every 30 minutes. It also calculates daily averages, with a maximum storage capacity of 99 daily average values. When data storage is full, old measurement values will be overwritten by new ones. The built-in display allows you to obtain measurement data in real time. Data stored in the meter can be easily transferred to a computer via the AC-100 communication cable.

Features:

  • Handheld design for easy portability;
  • Detachable or integrated photosynthetically active radiation probe and meter design;
  • Fast response time;
  • Real-time data display;
  • Built-in memory with data storage and download capability;
  • Waterproof design with robust and durable construction;
  • Broad spectral measurement range, suitable for all light sources including LED lamps.

Technical Specifications:

Spectral Range

389 nm ~ 692 nm ± 5 nm (wavelengths > 50%)

Spectral Selectivity

412 ~ 682 nm ± 5 nm (wavelengths < 10%)

Measurement Range

0 ~ 4000 μmol/m²/s

Field of View

180°

Calibration Error

± 5%

Repeatability

< 0.5%

Non-stability (Long-term Drift)

< 2% / year

Non-linearity

< 1% (≤ 4000 μmol/m²/s)

Response Time

< 1 ms

Directional Response

Less than ± 5% (at 75° zenith angle); less than 10% (412 to 682 nm ± 5 nm)

Azimuth Error

< 0.5%

Tilt Error

< 0.5%

Temperature Response

-0.11 ± 0.04% / °C

Detector

Blue-enhanced silicon photodiode

Housing

Anodized aluminum body, acrylic diffuser

Protection Rating

IP68

Operating Environment

0 ~ 50 °C, < 90% non-condensing relative humidity at 30 °C; < 70% non-condensing relative humidity at 30 ~ 50 °C; sensor alone waterproof to 30 m

Cable

2 m two-conductor shielded twisted pair with TPR jacket; additional cable available

Sensor Dimensions

Diameter 2.4 cm, Height 3.7 cm

Logging Mode

Manual / Automatic

Logging Capacity

99 data sets

Dimensions

12.6 cm (L) × 7 cm (W) × 2.4 cm (H)

Power Supply

CR2320 coin cell battery × 1

Weight

180 g

Optional Accessories:

No.

Name

Model

Product Description

1

Leveling Plate

AL-100

Mounts and secures the PAR probe to maintain stability and level orientation for maximum measurement accuracy. The leveling plate includes a built-in bubble level for installation guidance.

2

Communication Cable

AC-100

Downloads meter data to a computer; includes software, which is also available for download from the official website.

3

Submersible Extension Wand

AM-320

Handheld telescopic wand with three sections; extended total length is 102 cm. The last two sections are made of fiberglass, suitable for use in seawater.

Origin: United States

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