S281 LoRa gateway is data acquisition device based on Lora, 4G and Ethernet communication technologies. One LoRa gateway can collect data from 50 wireless Lora nodes, and the communication distance can reach 2000 meters. It is an optimal solution for data collection within the area. Lora nodes powered by low power three batteries, there are temperature, temperature and humidity sensors , RS485 nodes, DI nodes, DO nodes, various agricultural sensor nodes, etc. It is widely used in workshop temperature and humidity, equipment utilization rate, agriculture, breeding and other fields.
Load cells, force sensor, torque sensor, load pin, strain sensor, load controller, load indicator, digital indicator.
THF is an important organic synthetic raw material and a solvent with excellent performance. It is especially suitable for dissolving PVC, polyvinylidene chloride and butyl aniline. It is widely used as a solvent for surface coatings, anticorrosive coatings, printing inks, tape and film coatings, and used in combination. As a reaction solvent, the thickness and brightness of the aluminum layer can be arbitrarily controlled when used in the aluminum electroplating solution. THF itself can be polycondensed (ring-opening and repolymerization initiated by cations) into polytetramethylene ether glycol (PTMEG), also known as tetrahydrofuran homopolyether. PTMEG and toluene diisocyanate (TDI) are made into special rubbers with abrasion resistance, oil resistance, good low temperature performance and high strength; with dimethyl terephthalate and 1,4-butanediol to make block polyether polyester elastic Material.
Wholesale Urea Fertilizer 46% / Urea Fertilizer for Sale / Cheap Quality Urea Fertilizer Product name: Urea Alias: Carbonamide Chemical formula: CH4N2O Molecular weight: 60.06 CAS: 57-13-6 EINECS: 200-315-5 Water solubility: 1080 g/L (20â??). Appearance: colorless or white needle-like or rod-like crystals Application: Fertilizer Urea, also known as carbamide, is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen. It is a white crystal and one of the simplest organic compounds. It is the metabolic decomposition of protein in mammals and some fish. The main nitrogen-containing end product is also the nitrogen fertilizer with the highest nitrogen content. As a neutral fertilizer, urea is suitable for various soils and plants. It is easy to store, easy to use, and has little damage to the soil. It is a chemical nitrogen fertilizer that is currently used in a large amount. In industry, ammonia and carbon dioxide are used to synthesize urea under certain conditions. Agricultural applications: Urea is a high-concentration nitrogen fertilizer, a neutral quick-acting fertilizer, and can also be used to produce a variety of compound fertilizers. No harmful substances remain in the soil, and long-term application has no adverse effects. Animal husbandry can be used as feed for ruminants. However, excessively high temperature in granulation will produce a small amount of biuret, also known as biuret, which has an inhibitory effect on crops. my country stipulates that the content of urea biuret used in fertilizers should be less than 0.5%. When the biuret content exceeds 1%, seed fertilizer, seedling fertilizer and foliar fertilizer cannot be used, and the urea content in other application periods should not be too much or too concentrated. Urea is an organic nitrogen fertilizer. After being hydrolyzed into ammonium carbonate or ammonium bicarbonate by the action of urease in the soil, it can be absorbed and utilized by crops. Therefore, urea should be applied 4 to 8 days before the fertilization period of the crop.
Wholesale Urea Fertilizer 46% / Urea Fertilizer for Sale / Cheap Quality Urea Fertilizer Product name: Urea Alias: Carbonamide Chemical formula: CH4N2O Molecular weight: 60.06 CAS: 57-13-6 EINECS: 200-315-5 Water solubility: 1080 g/L (20â??). Appearance: colorless or white needle-like or rod-like crystals Application: Fertilizer Urea, also known as carbamide, is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen. It is a white crystal and one of the simplest organic compounds. It is the metabolic decomposition of protein in mammals and some fish. The main nitrogen-containing end product is also the nitrogen fertilizer with the highest nitrogen content. As a neutral fertilizer, urea is suitable for various soils and plants. It is easy to store, easy to use, and has little damage to the soil. It is a chemical nitrogen fertilizer that is currently used in a large amount. In industry, ammonia and carbon dioxide are used to synthesize urea under certain conditions. Agricultural applications: Urea is a high-concentration nitrogen fertilizer, a neutral quick-acting fertilizer, and can also be used to produce a variety of compound fertilizers. No harmful substances remain in the soil, and long-term application has no adverse effects. Animal husbandry can be used as feed for ruminants. However, excessively high temperature in granulation will produce a small amount of biuret, also known as biuret, which has an inhibitory effect on crops. my country stipulates that the content of urea biuret used in fertilizers should be less than 0.5%. When the biuret content exceeds 1%, seed fertilizer, seedling fertilizer and foliar fertilizer cannot be used, and the urea content in other application periods should not be too much or too concentrated.
Product name: Sodium erythorbate Synonyms: Sodium D-isoascorbate Chemical Formula: C6H7O6Na.H2O Molecular weight: 216.12 CAS No.: 6381-77-7 Description: Sodium erythorbate is a white or yellow white crystalline powder or granules, odorless, has little salt, the melting point is over 200, it is rather stable when being dry exposed to the air, but in the water solution, when there is air, metal, heat and light, the oxidation will occur. It easily dissolves in water; 16g/100ml at normal temperature, hardly dissolves in ethanol, the PH value of 2% water solution is 5.5-8.0. Which complies with the specifications of GB8273-87, FCC for food additives Net Weight: 25kgs/carton. Uses: Sodium Erythorbate is mainly used in foodstuff industry, used as antioxidant, preservative and coloring agent, broadly used in meat food, fish food, beer, fruit juice, syrup crystal, fruit and vegetable tin, cake, dairy produce, confiture, sherry, pickles, and grease etc. the dosage to the meat foods is 0.5~1.0g/kg. To the frozen fish, the fish should be infused in the 0.1%-0.8% water solution before freezing. The dosage in the beverage such as syrup is 0.01%~0.03%, apple and bechamel tin: 0.15g/kg (dosage of single or together with the VC), luncheon meat, cooked meat powder, cooked front leg pork, cooked ham, the dosage is 0.5g/kg (dosage of single or together with the VC and other sodium salt, counted the VC ), for the peach, apple jam: 2g/kg,for the fruit tin, it is 0.75-1.5g/l, for the nature syrup, it is 0.08-0.11g/l, for the beer, it is 0.03g/l (FAO/WHO(1977). Antioxidation property: the antioxidation property of the Sodium Erythorbate is great larger than the one of cenolate (Sodium VC), has no effects to identify the Vitamin C, but it will not persuade the body to absorb and use the Sodium Erythorbate. The body culls the Sodium Erythorbate and changes it into Vitamin C inside the body. The physiological effects of the Sodium Erythorbate is only the 1/20 of the VC on anti-scurvy, but it is approximately same to the VC on drop blood pressure, diuresis, generating of hepatic glycogen, discharging of pigment, detoxifcation. Microbiological: N/A Certificate of analysis: Certificate of analysis must provided for every delivery and must contain results for: * chemical data * lot/batch number * product name *manufacturer/supplier name Packing: Carton with PE liner. Storage: Product must be store in a cool and dry place, Keep every bag PE liner sealed. Shelf life: Minmum 24 months from the date of manufacture. GMO status: Non GMO. Allergen status: Does not contain any know allergens
EQUINAS NBO 60u High Quality Naphthenic Base Oil EQUINAS NBO 60u is a high-quality Naphthenic Base Oil with very good dielectric properties and oxidation stability intended for transformers, switchgears, and other electrical equipment. Naphthenic base oil is a type of mineral oil that is produced through the refining of crude oil. It is characterized by its composition of saturated cyclic hydrocarbons called naphthene. Applications: Naphthenic base oils are used in a wide range of applications, including automotive lubricants, transformer oils, metalworking fluids, rubber and tire manufacturing, and more. They are particularly well-suited for use in applications where low-temperature performance is critical, such as in hydraulic fluids, refrigeration oils, and compressor lubricants Features and Benefits: Low-temperature fluidity: Naphthenic base oil has a low pour point and excellent low-temperature fluidity, making it suitable for use in cold environments. Good solvency: Naphthenic base oil has good solvency, which allows it to dissolve additives and other chemicals that are added to lubricants and other products. Good oxidative stability: Naphthenic base oil has good oxidative stability, which means it can resist degradation caused by exposure to oxygen. Thermal stability: Naphthenic base oil can withstand high temperatures without breaking down or forming deposits. Compatibility: Naphthenic base oil is compatible with a wide range of other materials, including elastomers, seals, and metals. Environmental advantages: Naphthenic base oil is a naturally occurring substance, and its production process generates fewer harmful emissions and waste products than some other types of base oils. Packages size: Available in drums and flexibags Health and Safety: Based on available information, this product is not expected to produce adverse effects on health when used for applications referred to above and the recommendations provided in the Safety Data Sheet (SDS) are followed. The SDS is available upon request through our sales contact office. This product should not be used for purpose other than the applications referred to above. If disposing of used product, take care to protect the environment, follow the local rules and regulations of your local Authority.
Temperature sensor deviates from simplistic ON/OFF thermostatic mechanisms which control a residential hot water heating operation to extremely delicate semiconductor types that can manage multiple means of administration stove factories.
1 wire weight:0.13
1>No matter the temperature or weather changes, the fertilizer composition won't burn the root system. 2> Also has good drainage, fertilizer retention and air permeability to provide a high-quality environment for the seedlings during the growth stages. 3> Stimulating the growing of root system, and improving the quality. 4> Using quick-acting fertilizer ingredients that can match the needs of the seeds growing stage. 5> At the same time, adding slow-acting fertilizers which dissolve after touching plant root acid. Ensure that plants can absorb effective fertilizers at all stages of breeding. Content N 120mg/L PO 800-1000mg/L KO 120mg/L
The coolant temperature sensor consists of a negative temperature coefficient thermistor that is very sensitive to temperature changes.When the engine coolant temperature gradually increased,Thermistor resistance will gradually decline,On the contrary increases,When the engine coolant temperature changes,The output voltage of the sensor also changes accordingly. Engine coolant temperature sensor elongated head contact with the cooling liquid,The temperature of the coolant is detected by the change of the resistance value,And this signal is sent to the ECU,Used to detect the engine coolant temperature.The ECU corrects the fuel injection time and the ignition time after receiving the temperature signal. The normal use of the coolant temperature sensor is -30 ° C to 120 ° C,The corresponding output voltage is 0.3V ~ 4.7V.When the ECU detects an output voltage signal beyond this range,You can determine the sensor circuit failure. Car intake air temperature sensor (IATS) Automotive coolant temperature sensor (CTS) automobile exhaust gas temperature sensor (Ex-haust Air Temperature Sensor, EATS) car was NTC thermistor / temperature sensor Car temperature sensor,Respectively, water temperature sensor,Exhaust | intake air temperature sensor,These types of sensors are thermistors with the same characteristics,The temperature coefficient is negative temperature coefficient.The water temperature sensor is mounted on the engine cooling water passage,Its role is to detect the engine cooling water temperature,The water temperature sensor housing is fully enclosed,Use the change of resistance value to detect water temperature.The signal temperature value generated by the water temperature sensor is input to the ECU,ECU according to the cooling water temperature ignition control,Correction fuel injection amount to real-time control of the engine,To ensure the normal operation of the engine under different conditions. Intake | outlet temperature sensors are installed,Within the housing of the air cleaner box or regulator,The air flow meter or an intake manifold,Used to detect the temperature of the engine inhaled air.As the intake air temperature changes will affect the air density,The hotline, hot film cooling strength and the degree of atomization of the mixture have an impact,Intake air temperature sensor,Provide a signal to correct this effect.
The coolant temperature sensor consists of a negative temperature coefficient thermistor that is very sensitive to temperature changes.When the engine coolant temperature gradually increased,Thermistor resistance will gradually decline,On the contrary increases,When the engine coolant temperature changes,The output voltage of the sensor also changes accordingly. Engine coolant temperature sensor elongated head contact with the cooling liquid,The temperature of the coolant is detected by the change of the resistance value,And this signal is sent to the ECU,Used to detect the engine coolant temperature.The ECU corrects the fuel injection time and the ignition time after receiving the temperature signal. The normal use of the coolant temperature sensor is -30 ° C to 120 ° C,The corresponding output voltage is 0.3V ~ 4.7V.When the ECU detects an output voltage signal beyond this range,You can determine the sensor circuit failure. Car intake air temperature sensor (IATS) Automotive coolant temperature sensor (CTS) automobile exhaust gas temperature sensor (Ex-haust Air Temperature Sensor, EATS) car was NTC thermistor / temperature sensor Car temperature sensor,Respectively, water temperature sensor,Exhaust | intake air temperature sensor,These types of sensors are thermistors with the same characteristics,The temperature coefficient is negative temperature coefficient.The water temperature sensor is mounted on the engine cooling water passage,Its role is to detect the engine cooling water temperature,The water temperature sensor housing is fully enclosed,Use the change of resistance value to detect water temperature.The signal temperature value generated by the water temperature sensor is input to the ECU,ECU according to the cooling water temperature ignition control,Correction fuel injection amount to real-time control of the engine,To ensure the normal operation of the engine under different conditions. Intake | outlet temperature sensors are installed,Within the housing of the air cleaner box or regulator,The air flow meter or an intake manifold,Used to detect the temperature of the engine inhaled air.As the intake air temperature changes will affect the air density,The hotline, hot film cooling strength and the degree of atomization of the mixture have an impact,Intake air temperature sensor,Provide a signal to correct this effect.
Car intake air temperature sensor (IATS) Automotive coolant temperature sensor (CTS) automobile exhaust gas temperature sensor (Ex-haust Air Temperature Sensor, EATS) car was NTC thermistor / temperature sensor Car temperature sensor,Respectively, water temperature sensor,Exhaust | intake air temperature sensor,These types of sensors are thermistors with the same characteristics,The temperature coefficient is negative temperature coefficient.The water temperature sensor is mounted on the engine cooling water passage,Its role is to detect the engine cooling water temperature,The water temperature sensor housing is fully enclosed,Use the change of resistance value to detect water temperature.The signal temperature value generated by the water temperature sensor is input to the ECU,ECU according to the cooling water temperature ignition control,Correction fuel injection amount to real-time control of the engine,To ensure the normal operation of the engine under different conditions. Intake | outlet temperature sensors are installed,Within the housing of the air cleaner box or regulator,The air flow meter or an intake manifold,Used to detect the temperature of the engine inhaled air.As the intake air temperature changes will affect the air density,The hotline, hot film cooling strength and the degree of atomization of the mixture have an impact,Intake air temperature sensor,Provide a signal to correct this effect.
Type: k/j/e/n/t Temperature range: 0-350¡æ Probe length: 50~1000mm Probe diameter: 3.0~20.0mm Installation: thread or flange 1 piece per box and 15 boxes per carton
Water temperature sensor
Humidity and temperature sensor module 1. General mhtc1a humidity and temperature sensor module is designed base capacitive humiture sensor by ningbo junrong electron. This product utilizes humidity sensor capacitor and temperature sensor (lm35, america), with characteristics of stable, high accuracy, quick response, good crossing-over and it also use craftwork of smd, and so own extremely small body, stable and reliably performance. The quality guarantee time is 12 months. 2. Application electron, pharmaceutical industry, food processing, warehouses, tobacco, textile, weather, libraries and museum. 3. Shape model encapsulation shape mhtc1a humidity and temperature sensor module without shell detail to the picture 4. Model there are three models according to with or without temperature and humidity sensor. Mhc1a humidity measuring module, without temperature element mhtc1a1 temperature and humidity measuring module, with ntc resistance mhtc1a2 temperature and humidity measuring module, with lm35 temperature sensor 5. Specification (1) power supply (vin) dc 5vf+5% (2) electrical current 2ma (max 5ma) (3) temperature operating range 0 ~ 70fª (4) humidity operating range 0 ~ 100%rh (dew point) (5) humidity measuring range 2 ~ 99%rh (6) temperature storing range -20 ~ 85fª (7) humidity storing range under 95%rh (no dew point) (8) humidity measuring accuracy mhtc1a f+3%rh ( at 25fª, 60%rh ) 24.5*13.5*17mm
Humidity and temperature sensor module Specification (1) power supply (vin) dc 5vf+5% (2) electrical current 1.9ma (max 5ma) (3) temperature operating range 0 ~ 50fª (4) humidity operating range under 95%rh (5) humidity measuring range 30 ~ 90%rh (6) temperature storing range 0 ~ 70fª (7) humidity storing range lower 95%rh (8) humidity measuring accuracy f+5%rh ( at 25fª, 60%rh vin=5.0v 1.65`1.95v ) (9) typical humidity data responding to output 24.5*13.5*17mm
Humidity and temperature sensor Capacitance from 150 to 270 pf At 55%rh Sensitivity : 0.2 % by %rh Response time 0.3 s Rtsolution 0.05 pf Accuracy-interchangeability : 3 %hr de 3 a 97%hr Measurement range 0 a 100 %hr Operating range : -40ªc a +80ªc Supply voltage max :12v Not sensible at dc composent Size : 8x9x4 mm3
Humidity and temperature sensor transmitter Digital frequential ouput Nominal frequency 6.5 khz Std sensitivity 13 hz/%rh Response time 0.3 s Response time with Optional protection : 20 s Accurcy-interchangeability : 3 %hr de 3 a 97%rh Hysttrtsis
Non-contact temperature sensor for temperature measurement of products on web, hot-rolled metals, industrial ovens, and applications where physical contact is not possible
