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PQ-640: microCache and Quantum Light Pollution Sensor with 30 cm cable

Updated:2022-12-26

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  • Brand: APOGEE
  • Model: PQ-640
  • Description: This promotional package includes a SQ-640-SS quantum light pollution sensor with a 30cm cable, a microCache Bluetooth micro recorder, an AA-090 neoprene protective sleeve, an additional 2545 microCac
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Product Details

Overview of PQ-640 microCache and Quantum Light Pollution Sensor with 30 cm cable:

User's Manual

This promotional package includes a SQ-640-SS quantum light pollution sensor with a 30cm cable, a microCache Bluetooth micro recorder, an AA-090 neoprene protective sleeve, an additional 2545 microCache battery and an AM-020 Apogee PVC sensor platform. When paired, these two devices are powerful tools for monitoring photon flux density (PFD). Apogee's new SQ-640 sensor is designed to detect photons in the 340-1040 nm range that are less sensitive than typical quantum sensors. Detection of stray photons disturbing the dark period is very important for studying and preventing morphogenetic effects of some sensitive plants, such as hermaphroditism, stem elongation and poor flowering.





The new AT-100 microCache (µ Cache) micro recorder is a rugged, independent battery powered device that can collect more than 400000 data points, and use our free Apogee Connect application to connect your sensor to your iOS or Android device through Bluetooth. The application allows you to perform real-time measurements, set custom data recording intervals, monitor daylight integration and draw charts, ensure light cycles, download data sets, and more.

PQ-640 drawing:


PQ-640 specification:

Communication Protocol Bluetooth® Low Energy (Bluetooth 4.0+)
Bluetooth Range ~45 m (line-of-sight)
Data Logging Capability Averaging Interval: 1-60 minutes; Sampling Interval: ≥ 1 second
Data Log Capacity Over 400,000 Entries (~9 months at a 1-minute logging interval)
Time Accuracy ± 30 seconds per month at 0°C ~ 70°C
Battery Type 2/3 AA 3.6 Volt Lithium Battery
Battery Life ~1 year w/ 10-second sampling interval and an average of 5 minutes daily connected time; ~2 years w/ 60-second sampling interval and an average of 5 minutes daily connected time
Operating Environment -40 to 85 ℃
Dimensions 66 mm length, 50 mm width, 18 mm height
Weight 52 g
IP Rating IP67
Connector Type M8
Bluetooth Module BMD-340 Contains FCC ID: 2AA9B10 IC: 12208A-10
ADC Resolution 24 bits
Warranty 4 years against defects in materials and workmanship
Manufactured Made in the USA

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