Why is the leek still yellow after watering and fertilizing?

A: Yellowing of amaranth may be caused by yellow leaf disease, bacterial disease, powdery mildew and insect pests. At the same time, the lack of trace elements and improper fertilization can also be caused. In addition, soil acidification is also caused by the yellowing of leaves caused by poor absorption of nutrients by crops.

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Industrial Laser Distance Sensor

Industrial Laser Distance Sensor, we also call it secondary development laser distance module, which support TTL level and CMOS. The laser range sensor can be widely used in professional surveying, mapping, construction, robots, hunting arrows, industrial monitoring and automated measurement applications in electricity, transportation, etc. Our laser distance module supports data communication with RS232, USB with a simple adapter. The results of laser distance sensor can be evaluated with Arduino. We are always looking ahead, hoping we can make every measurement simple in life!

Industrial Laser Distance Sensor

Parameters of M703A:

Accuracy

±1 mm (0.04 inch)

Measuring Unit

mm

Measuring Range (without Reflection)

0.03-60m(150m can customize)

Measuring Time

0.125~3 seconds

Laser Class

Class II

Laser Type

620-690nm, <1mW

Size

45*25*12mm (±1 mm)

Weight

About 10g

Voltage

DC2.0~3.3V

Electrical Level

TTL/CMOS

Frequency

8Hz(20Hz can customize)

Operating Temperature

0-40 ℃ (32-104 ℉ )

Storage Temperature

-25~60 ℃ (-13~140 ℉)

Laser Distance RS232,Arduino Distance Module,Laser Module RS232

Chengdu JRT Meter Technology Co., Ltd , https://www.irdistancesensor.com