Gas Sensor

MQ-135 Module (Ammonia, Sulphide and Benzene Gas Sensor)

SKU: S-071

In stock

135.00 (Incl. GST)

Specifications:

Wide detecting scope
Fast response and High sensitivity
Stable and long life
Operating Voltage is +5V
Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc.
Analog output voltage: 0V to 5V
Digital output voltage: 0V or 5V (TTL Logic)
Preheat duration 20 seconds
Can be used as a Digital or analog sensor
The Sensitivity of Digital pin can be varied using the potentiometer

MQ-3 Alcohol Detector Gas Sensor Module

SKU: S-073

In stock

120.00 (Incl. GST)

Specifications:

Operating voltage: 5V
Load resistance: 200KΩ
Heater resistance:33Ω ± 5%
Heating consumption:<800mw
Sensing Resistance:1 MΩ – 8 MΩ
concentration Scope:5 – 500 ppm
Preheat Time: Over 24 hour

MQ-4 Module (Methane ,CNG Gas Sensor)

SKU: S-074

In stock

94.00 (Incl. GST)

Specifications:

Sensor Type Semiconductor
Power requirements: VCC – 5V±0.1
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
Detection Gas: Natural gas/Methane
Detection Concentration: 200-10000ppm (Natural gas / Methane)
Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
Heater consumption: less than 750mw
Operating temperature: 14 to 122 °F (-10 to 50°C)
RH Related humidity less than 95%Rh
O2 Oxygen concentration is 21% (standard condition) – Oxygen concentration can affect sensitivity
Load resistance: 20KΩ
Sensing Resistance Rs: 10KΩ- 60KΩ (1000ppm CH4)
Preheat time:Over 24 hour
Standard Encapsulation Bakelite, Metal cap

MQ-5 Methane LPG Liquid Propane Gas Sensor Module

SKU: S-075

In stock

95.00 (Incl. GST)

Specifications :

Detecting Concentration: 300 to 10000 ppm
Input Voltage: 5 VDC
Power: 150 mA
Digital Output Voltage: TTL digital 0 and 1 (0.1 V and 5 V)
Analog Output Voltage (relatively clean): 0.1 V to 0.3 V
Analog Output Voltage (highest concentration): 4 V

MQ-7 Module (Carbon Monoxide Gas Sensor)

SKU: S-077

In stock

110.00 (Incl. GST)

Specifications :

circuit voltage: 5V±0.1
Heating voltage (high): 5V±0.1
Heating voltage (low): 1.4V±0.1
Load resistance: Adjustable
Heating resistance: 33Ω±5%
Heating time (high): 60±1 seconds
Heating time (low): 90±1 seconds
Heating consumption: About 350mW
Using temperature: -20°C-50°C
Storage temperature: -20°C-50°C
Relative humidity: Less than 95%RH
Oxygen concentration: 21%(stand condition) the oxygen concentration can affect the sensitivity characteristic

MQ-8 Module (Hydrogen Gas Sensor)

SKU: S-078

In stock

110.00 (Incl. GST)

Specifications:

Power supply needs: 5V
Interface type: Analog, Digital
High sensitivity to Hydrogen (H2)
Small sensitivity to alcohol, LPG,cooking fumes
Stable and long life
Size: 32x20mm
Circuit voltage: 5V±0.1
Heating voltage: 5V±0.1
Load resistance: 10KΩ
Heater resistance: 31±5%
Heating consumption: less than800mW
Using Temperature: -10°C-50°C
Storage Temperature: -20°C-70°C
Related humidity: less than 95%Rh
Oxygen concentration: 21%(standard condition)Oxygen concentration can affect sensitivity

MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module

SKU: S-079

In stock

110.00 (Incl. GST)

Specifications:

Input voltage: DC 5V
Power: 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
O output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V.
Suitable for home or factory gas leakage monitoring devices.
Have better sensitivity to Carbon Monoxide, Methane and LPG Gas.
High quality dual-panel design, with power indicator and TTL signal output instructions.
DO switching signal (TTL) output and AO analog signal output.
TTL output valid signal is low. (When the output low signal is on, it can be directly connected micro-controller or relay module.)
Analog output voltage: the higher concentration, the higher voltage.