This promotional package includes both an S2-141-SS2 PAR-FAR sensor (with a 2 m cable) and microCache Bluetooth micro-logger at a special introductory price. The extended 2 meter cable of the SS2 model allows the microCache to be positioned further from the sensor, such as out of the water when used with coral reef tanks or for other applications. When paired, these two devices are a powerful tool for monitoring photosynthetically active radiation with research-grade accuracy for optimal plant growth. The S2-141-SS PAR-FAR sensor is a unique two-channel sensor for measuring both the PAR (PPFD) and Far-red outputs of electric grow lights. 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.
Power Supply: Self-powered
Output (sensitivity): 0.01 mV per µmol m⁻² s⁻¹ (PAR); 0.02 mV per µmol m⁻² s⁻¹ (Far-Red)
Calibration Factor (reciprocal of sensitivity): 100 µmol m⁻² s⁻¹ per mV (PAR); 50 µmol m⁻² s⁻¹ per mV (Far-Red)
Calibration Uncertainty: ± 5 %
Output Range: 0 to 40 mV (PAR); 0 to 20 mV (Far-Red)
Measurement Repeatability: Less than 1 %
Long-term Drift: Less than 2 % per year
Non-linearity: Less than 1 % (up to 4000 µmol m⁻² s⁻¹) (PAR); Less than 1 % (up to 1000 µmol m⁻² s⁻¹) (Far-Red)
Response Time: Less than 1 ms
Field of View: 180˚
Spectral Ranges: 389 to 692 nm ± 5 nm (PAR); 702 to 761 nm ± 5 (Far-Red)Directional (Cosine) Response± 2 % at 45˚; ± 5 % at 75˚ zenith angle
Temperature Response: Less than 0.1 % per C
Housing: Anodized aluminum body with acrylic diffuser
IP Rating: IP68
Operating Environment: -40 to 70 C; 0 to 100 % relative humidity
Dimensions: 30.5 mm diameter, 37 mm height
Mass (with 5 m of cable): 140 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
