发布时间:2024-05-17
Purpose: Measure and display the intensity of light quanta falling on plants (PAR) The button design is portable, fast, and can calculate the Daily LightIntegral value of daylight quanta.
Application: Used in agriculture, forestry, meteorology, plant physiology, greenhouse, ecology and other research and production departments of light intensity measurement, can also be used for different heights of light quantum measurement
.
Technical parameter:
key | A start button to control the operation of the instrument |
Display interval | 4s |
Measuring band | 400~700nm |
Display unit | µmol/m2/s1或Foot~Candles(1FC=10.76LUX) |
Observed parameter | Daily cumulative light, can be integrated to calculate 24 hours of daily light |
Power supply | 1 3V CR2032 battery |
Electric quantity | About 60 daily cumulative light quantity (DLI) calculations can be recorded |
Numerical reference for the response of most plants to different light levels:
Relative light level | Cumulative daily light quantity(DLI) | Midday intensity(µmol/m2/s1) | Effect on plants |
Very low | 2~5 | 100~200(500~1000FC) | Very bad |
low | 5~10 | 200~400(1000~2000FC) | The lowest level that can be tolerated |
intermediate | 10~20 | 400~800(2000~4000FC) | good |
high | 20~30 | 800~1200(4000~6000FC) | As good as gold |
Very high (outdoor) | 30~60 | 1200~2000(6000~10000FC) | As good as gold |
010-82654320,分机号:8003(销售)8004(技术)
4009966754