Important Info

This promotional package includes both an SQ-500 Full-spectrum Quantum sensor with a 30 cm cable and microCache Bluetooth micro-logger at a special introductory price. When paired, these two devices are a powerful tool for monitoring photosynthetically active radiation with research-grade accuracy for optimal plant growth. The SQ-500 sensor is a trusted industry standard for making accurate PPFD measurements. The new AT-100 microCache (µCache) micro-logger is a rugged, standalone, battery-powered device that can collect over 400,000 data points and connects your sensor to your iOS or Android device via Bluetooth using our ApogeeConnect app. The app allows you to make real-time measurements, set custom datalogging intervals, monitor and graph daily lights integrals, measure photoperiods, download datasets, and more.

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Specifications

Power Supply Self-powered
Output (Sensitivity) 0.01 mV per µmol mˉ² sˉ¹
Calibration Factor (Reciprocal of Sensitivity) 100 µmol mˉ² sˉ¹ per mV
Calibration Uncertainty ± 5 %
Calibrated Output Range 0 to 40 mV
Measurement Range 0 to 4000 µmol mˉ² sˉ¹
Measurement Repeatability Less than 0.5 %
Long-term Drift Less than 2 % per year
Non-linearity Less than 1 % (up to 4000 µmol mˉ² sˉ¹)
Response Time Less than 1 ms
Field of View 180˚
Spectral Range 389 to 692 nm ± 5 nm (wavelegths where response is greater than 50 % of maximum)
Spectral Selectivity Less than 10 % from 412 to 682 nm ± 5 nm
Directional (Cosine) Response ± 5 % at 75˚ zenith angle
Azimuth Error Less than 0.5 %
Tilt Error Less than 0.5 %
Temperature Response -0.11 ± 0.04 % per C
Uncertainty in Daily Total Less than 5 %
Detector Blue-enhanced silicon photodiode
Housing Anodized aluminum body with acrylic diffuser
IP Rating IP68
Operating Environment -40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
Dimensions 24 mm diameter, 37 mm height
Mass (with 5 m of cable) 100 g
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 C
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

Compatible Items

PQ-510 Package: microCache and Full-Spectrum Quantum with 2 Metre Cable

MQ-500 Full-Spectrum Quantum Meter
MQ-501: Handheld Full-Spectrum Quantum Meter

See more environmental monitoring tools here.