Sign In | Join Free | My benadorassociates.com
China ShenzhenYijiajie Electronic Co., Ltd. logo
ShenzhenYijiajie Electronic Co., Ltd.
The company advocates the corporate culture of "integrity and dedication, pragmatic innovation, unity and cooperation, diligence and progress", pays attention to standardized management, advocates
Verified Supplier

4 Years
Home > Gas Sensor >

MQ135 MQ-135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors

Product Categories
ShenzhenYijiajie Electronic Co., Ltd.
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment
Contact Now

MQ135 MQ-135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors

Model Number : MQ135 MQ-135

Place of Origin : CN

MOQ : 1PCS

Price : Negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 5000PCS

Delivery Time : 5-8 work days

Packaging Details : Standard packaging

Heater Voltage (VH) : 5.0V±0.1V (AC or DC)

Heater Resistance : 30Ω±3Ω

Heater Consumption : ≤950mW

Output Voltage (Vs) : 2.0V - 4.0V (in 400ppm H₂)

Concentration Slope (α) : ≤0.6 (R₄₀₀ ppm/R₁₀₀ ppm H₂)

Standard Test Conditions : Temperature 20℃±2℃, humidity 55%±5% rh

Contact Now

MQ135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors

Working Principle:

The sensitive material of the MQ135 gas sensor is SnO₂, which has lower conductivity in clean air. When the target pollution gas exists, the sensor's conductivity increases with the rise of the gas concentration. Users can convert the change of conductivity into the corresponding output signal of the gas concentration through a simple circuit.

Features:

  • Wide - range detection, which can detect various gases such as ammonia, nitrogen oxides, alcohols, benzene, smoke, and CO₂.
  • High sensitivity and fast response.
  • Stable performance and long service life.
  • Simple drive circuit, with both analog and digital output options, and the sensitivity can be adjusted through the on - board potentiometer.

Main Applications:

It is widely used in domestic gas alarms, industrial gas alarms, and portable gas detectors, as well as air quality control equipment for buildings and offices.

Structure Description:

The MQ135 gas - sensitive element is composed of a micro - AL₂O₃ ceramic tube, a SnO₂ sensitive layer, a measuring electrode, and a heater, which are fixed in a cavity made of plastic or stainless steel. The packaged gas - sensitive element has 6 pin - shaped pins, 4 of which are used for signal extraction, and 2 are used for providing heating current.

Parameter

Symbol

Value

Unit

Remarks
Loop Voltage Vc 5.0V ± 0.1V DC --
Heater Voltage VH 5.0V ± 0.1V AC or DC --
Load Resistance RL Adjustable Ω --
Heater Resistance RH 30Ω ± 3Ω -- At room temperature
Heater Power Consumption PH ≤ 950 mW --
Detection Range -- 10 - 1000 ppm For ammonia, toluene, hydrogen, smoke, etc.
Sensitivity S Rs (in air)/Rs (in 400ppm H₂) ≥ 5 -- --
Output Voltage Vs 2.0 - 4.0 V In 400ppm H₂
Concentration Slope α ≤ 0.6 -- R₄₀₀ ppm/R₁₀₀ ppm H₂
Operating Temperature Tao - 10 - 45 ℃ --
Storage Temperature Tas - 20 - 70 ℃ --
Relative Humidity RH ≤ 95 % --
Standard Test Temperature -- 20℃ ± 2℃ -- --
Standard Test Humidity -- 55% ± 5% -- --
Oxygen Content -- ≥ 18 %

21% is optimal, which will affect the initial value,

sensitivity and repeatability of the sensor
Pre - heat Time -- ≥ 48 h --

MQ135 MQ-135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors


Product Tags:

MQ135 gas sensor for domestic alarms

      

portable gas detector with MQ135

      

MQ-135 gas sensor for home safety

      
Quality MQ135 MQ-135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors for sale

MQ135 MQ-135 Gas Sensor For Domestic Gas Alarms Portable Gas Detectors Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: ShenzhenYijiajie Electronic Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
You May Like