The SP-212 is an amplified sensor with a 0 to 2.5 V output. The sensor incorporates a silicon-cell photodiode with a rugged, self-cleaning sensor housing design, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks. Sensors are also used to optimize photovoltaic systems. Sensor includes IP68 marine-grade stainless-steel cable connector to simplify sensor removal and replacement for maintenance and recalibration.
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Current Stock:
ISO 9060:2018
Class C (fast response)
Power Supply
5 to 24 V DC
Current Draw
300 μA
Sensitivity
1.25 mV per W mˉ²
Calibration Factor
0.8 W mˉ² per mV (reciprocal of sensitivity)
Calibration Uncertainty at 1000 W mˉ²
Less than 3 %
Calibrated Output Range
0 to 2.5 V
Measurement Repeatability
Less than 1 %
Non-stability (Long-term Drift)
Less than 2 % per year
Non-linearity
Less than 1 % (up to 2000 W mˉ², maximum radiation measurement is 2000 W mˉ²)
Response Time
Less than 1 ms
Field of View
180˚
Spectral Range
360 to 1120 nm (wavelengths where response is 10 % of maximum)
Directional (Cosine) Response
± 5 % at 75˚ zenith angle
Temperature Response
0.04 ± 0.04 % per C
Operating Environment
-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
Dimensions
30.5 mm diameter, 37 mm height
Mass (with 5 m of cable)
140 g
Warranty
4 years against defects in materials and workmanship
Manufactured
Made in the USA