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MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

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Chiny ShenzhenYijiajie Electronic Co., Ltd. Certyfikaty
Chiny ShenzhenYijiajie Electronic Co., Ltd. Certyfikaty
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MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms
MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

Duży Obraz :  MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

Szczegóły Produktu:
Miejsce pochodzenia: Cn
Numer modelu: MQ137 MQ-137
Zapłata:
Minimalne zamówienie: 1PCS
Cena: negocjowalne
Packaging Details: Standard packaging
Czas dostawy: 5-8 dni roboczych
Zasady płatności: L/C, D/A, D/P, T/T, Western Union, Moneygram
Supply Ability: 5000PCS

MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

Opis
Zakres wykrywania: 5 - 500 ppm NH₃ Standardowe warunki obwodu: ≤ 24 V DC
Napięcie grzejnika (VH): 5,0 V ± 0,1 V AC lub DC Odporność na grzejnik (RH): 29 Ω ± 3 Ω
Zużycie grzejnika (pH): ≤ 900 MW Temperatura robocza: - 10 ℃ - 45 ℃
Podkreślić:

MQ137 semiconductor gas sensor

,

NH₃ gas alarm sensor

,

domestic gas sensor with warranty

 

                               MQ137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms

 

 

Working Principle:

The sensitive material SnO₂ of the MQ137 gas sensor has lower conductivity in clean air. When ammonia gas is present, the sensor's conductivity increases with the rise of gas concentration. Users can convert the change of conductivity into a corresponding output signal of gas concentration through a simple circuit.

 

Applications:

  • Domestic NH₃ gas alarms
  • Industrial NH₃ gas leakage alarms
  • Portable NH₃ gas detectors

 

Parameter

Symbol

Value

Unit

Remarks

Detection Range - 5 - 500 ppm For NH₃
Standard Circuit Conditions (Loop Voltage) Vc ≤ 24 V DC -
Heater Voltage Vh 5.0 V ± 0.1 V - AC or DC
Load Resistance Rl Adjustable - -
Heater Resistance Rh 29 Ω ± 3 Ω - At room temperature
Heater Consumption Ph ≤ 900 mW -
Sensitivity S Rs (in air)/Rs (50 ppm NH₃) ≥ 2 - -
Output Voltage △Vs ≥ 0.5 V In 50 ppm NH₃
Concentration Slope α ≤ 0.6 - R₂₀₀ ppm/R₅₀ ppm NH₃
Standard Test Temperature - 20℃ ± 2℃ - -
Standard Test Humidity - 55% ± 5% RH -
Pre-heat Time - Over 48 hours -
Operating Temperature - -10 - 45 -
Storage Temperature - -20 - 70 -

 

MQ137 MQ-137 Semiconductor Gas Sensor For Domestic NH₃ Gas Alarms 0

 

Szczegóły kontaktu
ShenzhenYijiajie Electronic Co., Ltd.

Osoba kontaktowa: Miss. Xu

Tel: 86+13352990255

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