Apogee Instruments MQ-650 for underwater PAR measurement

The MQ-650 ePAR meter is designed for advanced underwater PAR measurements (400-750 nm) and applies the correction factor for the sensor's immersion effect to the measured values ​​via the firmware. The meter provides excellent measurements under all light sources, including LEDs. The meter consists of a waterproof quantum sensor connected to a handheld meter via a waterproof cable. The waterproof sensor contains a blue enhanced silicon photodiode and custom optical filters in a rugged anodized aluminum housing with acrylic diffuser. The underwater quantum sensor is typically used in saltwater aquariums where corals are grown. Note: The handheld meter is not waterproof, only the sensor and cable are waterproof.

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