	SQ-110./120	SQ-212/222	SQ-214/224	SQ-215/225	SQ-300系列	SQ-420	SQ-421	SQ-422
Power Supply	Self-powered	5至24 V DC	7到24 V DC	5.5至24 V DC	Self-powered	5 V USB power source	5.5至24 V DC	5.5至24 V DC
Current Draw	-	10μA.	22mA maximum; 2 mA quiescent	10μA.	-	记录时61 mA	1。4 mA (quiescent); 1.8 mA (active)	RS-232 quiescent 36.87 mA, active 37.06 mA; RS-485静态37.37 mA，活跃42.30 mA
Output (Sensitivity)	0.2 mV per µmol m^-2S.^-1	每微米0.625 mV^-2S.^-1	0.004 mA per µmol m^-2S.^-1	1。25 mV per µmol m^-2S.^-1	0.2 mV per µmol m^-2S.^-1	-	-	-
输出类型	0 to 800 mV	0 to 2.5 V	4 to 20 mA	0 to 5 V	0 to 800 mV	USB	SDI-12	Modbus
Resolution	-	-	-	-	-	0.1μmolM.^-2S.^-2	-	-
校准系数（敏感度的互易）	5 µmol m^-2S.^-1per mV	1。6 µmol m^-2S.^-1per mV	250μmol米^-2S.^-1per mV	0.8μmolM.^-2S.^-1per mV	5 µmol m^-2S.^-1per mV	每个传感器的自定义并存储在固件中	每个传感器的自定义并存储在固件中	每个传感器的自定义并存储在固件中
Calibration Uncertainty	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %	± 5 %
Measurement Repeatability	小于0.5％	小于0.5％	小于0.5％	小于0.5％	小于0.5％	小于0.5％	不到1％	不到1％
Long-term Drift	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year	Less than 2 % per year
Non-linearity	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）	不到1％(up to 4000 µmol m^-2S.^-1）
Response Time	Less than 1 ms	Less than 1 ms	Less than 1 ms	Less than 1 ms	Less than 1 ms	Software updates every second	小于0.6秒	-
Field of View	180°	180°	180°	180°	180°	180°	180°	180°
Spectral Range	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)	410 to 655 nm (wavelengths where response is greater than 50 % of maximum)
光谱选择性	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm	Less than 10 % from 469 to 655 nm
Directional (Cosine) Response	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％	75°的天顶角±5％
Temperature Response	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％	每C 0.06±0.06％
操作环境	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m	-40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m
方面	24 mm diameter, 33 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height	SQ-313/316 / 323/326：500 mm x 15 mm x 15 mm，SQ-311/321：700 mm x 15 mm x 15 mm	24 mm diameter, 33 mm height	30.5 mm diameter, 37 mm height	30.5 mm diameter, 37 mm height
Mass (with 5 m of cable)	90 g	140 g	140 g	140 g	SQ-313/316 / 323/326：275 G，SQ-311/321：375G	90 g	140 g	140 g