This promotional package includes a SQ-100X-SS Original X Quantum sensor with a 30 cm cable, a microCache Bluetooth micro-logger, an AA-090 protective Neoprene Case, an extra 2545 microCache battery, and an AM-020 Apogee PVC Sensor Platform. When paired, these two devices are a powerful tool for monitoring photosynthetically active radiation with research-grade accuracy for optimal plant growth. The SQ-100X 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 free ApogeeConnect app. The app allows you to make real-time measurements, set custom datalogging intervals, monitor and graph daily lights integrals, assure photoperiods, download datasets, and more.
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View Real-time Data
Transmits real-time data to iOS and Android devices using the Apogee Connect app.
IP67 rated for harsh environments.
Stores over 400,000 entries, (9 months of 1-minute data) with programmable sampling and logging intervals.
High Resolution Readings
Processor features a 24 bit analog-to-digital converter.
Warranty and Support
The µCache is backed by a 4 year warranty and outstanding customer support.
MORE INFORMATION ON THE APOGEE µCache >> click here
0.1 mV per µmol mˉ² sˉ¹
Calibration Factor (Reciprocal of Sensitivity)
10 µmol mˉ² sˉ¹ per mV
± 5 %
Calibrated Output Range
0 to 250 mV
Less than 0.5 %
Long-term Drift (Non-stability)
Less than 2 % per year
Less than 1 % (up to 2500 µmol mˉ² sˉ¹)
Less than 1 ms
Field of View
370 to 650 nm (wavelengths where response is greater than 50 % of maximum)
Directional (Cosine) Response
± 5 % at 75° zenith angle
-0.04 % per C
10 to 60 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
24 mm diameter, 33 mm height
Mass (with 5 m of cable)
Bluetooth® Low Energy (Bluetooth 4.0+)
~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)
± 30 seconds per month at 0° C ~ 70° C
2/3 AA 3.6 Volt Lithium Battery
~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
-40 to 85 C
66 mm length, 50 mm width, 18 mm height
BMD-340 Contains FCC ID: 2AA9B10 IC: 12208A-10
4 years against defects in materials and workmanship
Assembled in the USA