Flat Semiconductor NH3 Sensor MP-702


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Summary:

The MP-702 ammonia gas sensor adopts a multi-layer thick film manufacturing process. The heater and the metal oxide semiconductor gas sensing layer are respectively made on both sides of the micro Al2O3 ceramic substrate, and are packaged in a metal shell. When the detected gas exists in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. This change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit.

Feature:

This product has high sensitivity to ammonia gas; it has the advantages of fast response recovery, low power consumption, simple detection circuit, good stability and long life.

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APPLICATION

Smart Breeding

Livestock and poultry farming is the major emission of ammonia gas, and these ammonia gas react with the oxidation products of sulfur dioxide and nitrogen oxides to generate ammonium nitrate and ammonium sulfate, which are an important source of PM2.5.

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Food Storage and Transportation

The intelligent control and precise management of grain bin are the key to realizing safe and efficient grain storage. Using the grain bin sensor to build a smart grain system can save food while reducing the input of manpower and material resources.

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Refrigerator

Smart refrigerators are constantly innovating in the cross-border integration of different technologies. The addition of food freshness, human body induction, CO2 modules, allowing temperature control, ingredients management, automatic sterilization, intelligent alarm and other functions to continuously refresh the market for reconstructing future life style.

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PARAMETER

Specification Product Size

Technical Data Sheet

Model MP702
Sensor Type Semiconductor flat surfaced sensor
Standard Encapsulation Metal Cap
Detection Gas ammonia
Detection range 0~100ppm(NH3)
Standard Circuit Loop Voltage VC ≤24V DC
Heating voltage VH 5.0V±0.1V AC or DC
Load resistance RL Adjustable
Sensor features in standard test condition Heating resistance RH 95Ω±10Ω(Room Temp.)
Heating consumption PH ≤300mW
Surface resistance RS 1KΩ~30KΩ(in 50ppmNH3)
Sensitivity S Rs(in air)/Rs(in 50ppmNH3)≥5
Concentration slope α ≤0.6(R100ppm/R30ppmNH3)
Standard condition of test Temperature, humidity 20℃±2℃;65%±5%RH
Standard test circuit VC:5.0V±0.1V;
VH:5.0V±0.1V
Warm-up time More than 48 hours

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RELATED PRODUCTS

As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:

RELATED PRODUCTS

As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:

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We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

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Here you can learn about the selection guide, common technical problems, packaging, transportation, MOQ, delivery time, etc.

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Winsen is a factory with over 30,000 square meters area and 500+ production machines which is focusing on sensors development&manufacturing. It has strong R&D strength with more than 100 R&D personnel.

How long is the delivery time?

1-7 days after received payment

What is your warranty term?

The warranty period is one year from the date of shipment. If the appearance of the product is not damaged, it can be returned after confirmation. For damage not caused by Winsen, the customer shall bear all maintenance costs.

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