MQ-5 Gas Detection Alarm Circuit Sound and Light Electronic Teaching Training DIY Parts Production Sensor Kit
Direct purchase from the factory 
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Manufar Jigilar Kaya
Manufar KomawaKyauta Kyauta
Barka da zuwa Roymall, shafinku na siyan kyaututtuka masu inganci. Muna girmama goyon bayanku, kuma muna ba da kyauta kyauta tare da kowane siyayya. Shirya don bincika tarinmu kuma ku sami kyaututtukanku masu dacewa.Manufar Jigilar Kaya
Za mu aika kayanku cikin kwanaki 2 bayan siyayya.Lokacin jigilar kaya yawanci kwanaki 5-7 ne.Saboda jigilar mu ta duniya ne, lokacin jigilar zai dogara da wurin ku.1. Manufar Komawa
Muna karɓar abubuwan da aka saya daga roymall.com kawai. Ba za a iya mayar da kyauta kyauta ba. Dole ne abu ya kasance ba a yi amfani da shi ba kuma a cikin yanayin da kuka karɓa.Za mu sarrafa komawar ku cikin kwanaki 3-5 bayan karɓa.Ba za a iya mayar da abubuwan da aka keɓance ba.Tuntuɓi mu. service@roymall.com ko Whatsapp: +86193598494712.Manufar Maida Kuɗi
Za ku sami cikakken maida kuɗi bayan mu karɓi abubuwan da aka dawo. Kuɗin jigilar kaya ba za a iya mayar da su ba.Tuntuɓi mu. service@roymall.com ko Whatsapp: +8619359849471Product name: Gas detection alarm circuit
Supply voltage: DC5V
Appearance size: 60*30mm
Sensor: MQ-5
NOTE: This kit requires self-assembly.
Package includes:
1 x DIY Kit
| Components List | ||
| Component name | Component position | Quantity |
| 1/4W Resistor 5.1R | R1 | 1 |
| 1/4W Resistor 1K | R2, R5~R7,R9, R10 | 6 |
| 1/4W Resistor 10K | R3, R4 | 2 |
| 1/4W Resistor 330R | R8 | 1 |
| 1/4W resistor 220K | IC4 | 1 |
| Ceramic capacitor 104 | C1,C2 | 2 |
| 3MM yellow LED | D1, D2 | 2 |
| Transistor S9012 | Q1 | 1 |
| Trivalent chromium S9013 | Q2 | 1 |
| In-line chip LM393 | U1 | 1 |
| Voice chip C002 | IC4 | 1 |
| 5V Active Buzzer | B1 | 1 |
| Straight pin header 4P | P1 | 1 |
| Double female Dupont cable 2P | P1 | 1 |
| MQ-5 gas sensor | MQ-5 | 1 |
| PCB board | 1 | |
Principle:
The gas sensing material used in the MQ-5 gas sensor is tin dioxide with low conductivity in clean air. When there is flammable gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase in the concentration of flammable gas in the air. big. External oscillator resistance 100K~240Ku03a9 (the larger the resistance, the slower the sound speed), the buzzer can be driven to sound after power-on. Pin 1 is grounded, pin 2 is output, pin 3 is the sound terminal, pin 4 is connected to the positive pole of the power supply, and pins 5 and 6 are connected to the shock resistance.
