Meteorological changes are the biggest factor affecting agricultural production. Our country has weathered the weather since ancient times. The wind and rain here are actually one kind of weather. As long as the weather is good for agricultural harvest, it will be better, which also explains the weather for agriculture. Influence. For example, if a melon farmer grows watermelons, he hopes that watermelons do not have too much frequent precipitation or sudden hail weather in the long run. Because these two factors have a great impact on the growth of watermelons, the traditional model for farmers to understand weather depends on Weather forecast, or experience observation. In modern agricultural production, in order to better understand and master the local meteorological changes, Topsun Yunnong developed a handheld agricultural environmental monitoring instrument that can monitor local small-scale changes in climate and environment so that more protective measures can be implemented. . Handheld agricultural environmental monitoring instrument is widely used in the fields of facility agriculture, forestry, horticulture, animal husbandry, etc. The instrument can quickly determine temperature, humidity, light intensity, photosynthetically active radiation, wind speed, rainfall, CO2 concentration, soil temperature, soil moisture , soil pH, soil EC conductance and other environmental meteorological parameters. Today we introduce the functional characteristics of handheld agricultural environmental monitoring instrument handsets: 1, small and beautiful, easy to carry, touch buttons, large-screen dot matrix LCD display, full Chinese menu operation.
Agm-type batteries use pure sulfuric acid solution as electrolyte, with a density of 1.29-1.3lg/cm3. Most of them exist in the glass fiber film, and the plate absorbs a part of the electrolyte outside. In order to provide a channel for the oxygen precipitated from the positive electrode to the negative electrode, 10% of the pores of the diaphragm must be kept free from the electrolyte, that is, the lean liquid design.
The electrode group is fitted tightly so that the plate is fully in contact with the electrolyte. At the same time, in order to ensure that the battery has enough usage life, the plate should be designed to be thick, and the positive plate grid alloy is Pb'-q2w-Srr--A1 quaternary alloy. AGM type sealed lead battery electrolyte amount is less, plate thickness is thicker, active substance utilization rate is lower than open type battery, so the battery discharge capacity is about 10% lower than open type battery. The discharge capacity is smaller than that of today's colloidal sealed batteries.
Compared with batteries of the same specifications, the price is higher, but it has the following advantages :
1. The cycle charging capacity is 3 times higher than that of lead-calcium batteries, and the service life is longer.
2. It has higher capacitance stability in the whole service life cycle.
3. Low temperature performance is more reliable.
4. Reduce accident risk, reduce environmental pollution risk (due to acid 100% sealed pack).
5. Maintenance is simple, reducing deep discharge.
Agm Battery,Jump Start Agm Battery,Agm Battery Vs Lead Acid,Agm Battery For Car Jinhua Juxing Power Supply Co., Ltd , https://www.poweriderbattery.com
2. One-touch switching, you can manually record or set the sampling interval at any time from the computer, automatically record the data and store it.
3, AC and DC dual-use, either to get the field at any time measurement data collection, but also can be placed for a long time to record the location.
4, with GPS positioning, automatic data acquisition, real-time display of geographic coordinates of the site (latitude and longitude information) and save.
5, with voice broadcast function, you can set the voice alarm for the limit value, the real-time standard voice broadcast over the standard parameters, you can directly broadcast real-time environmental parameter values ​​(optional).
6. Data saving function is powerful, with voice alarm function and GPS function can store up to 12,000 sets of data.
7. You can view the data on the host or import it into the computer for viewing. After an accidental power failure, the data stored in the host is not lost.
8, the probe has a consistency, the sensor interface of different meteorological parameters can be exchanged, does not affect the precision.
9, after the sensor is inserted into the host, you can manually search for a variety of different types of sensors (similar to the U disk and the computer can automatically sense the connection).
10, the instrument has 256-channel simultaneous detection of extended functions, can achieve multi-point synchronous detection, can be combined as needed.