Apogee Instruments - PQ-640: Light-Pollution Sensor + microCache Package

Brand: Apogee Instruments

The Apogee PQ-640 package pairs an Apogee SQ-640 quantum light-pollution sensor with the AT-100 microCache Bluetooth logger for standalone wireless monitoring with no separate datalogger. The sensor measures stray light (340 to 1040 nm) during dark periods.

The microCache powers the sensor, stores up to 400,000 data points, and downloads to a smartphone via the free ApogeeConnect app, making it easy to deploy a logging station in minutes.

Key Features

• Apogee SQ-640 quantum light-pollution sensor plus AT-100 microCache Bluetooth logger
• Measures stray light (340 to 1040 nm) during dark periods
• Stores up to 400,000 data points; Bluetooth download via ApogeeConnect
• 30 cm sensor cable included
• Built and calibrated in Logan, Utah; NIST-traceable, made in the USA, and backed by an industry-leading 4-year warranty.

Why Choose This Model

This package is the fastest way to add continuous, wireless monitoring of a specialty parameter in one purchase.

Ideal Applications

• Standalone wireless monitoring
• Greenhouse, grow-room, and chamber studies
• Spot audits and research