Emakefun MQ Gas Sensor Module Kit with Tutorial for Arduino UNO R3 MAGA 2560 Nano

Component list:
1 x Project Box
1 x User Manual
1 x MQ-2
1 x MQ-3
1 x MQ-4
1 x MQ-5
1 x MQ-6
1 x MQ-7
1 x MQ-8
1 x MQ-9
1 x MQ-135
1 x 400 Holes Breadboard
20 x Dupont wire (Female to Male)
2 x 24cm Jumper Wire (Male to Male)
2 x 20cm Jumper Wire (Male to Male)
4 x 16cm Jumper Wire (Male to Male)
22 x Jumper Wire 25cm (Male to Male)

Features:Gas Sensor Detector Module can be utilized in the gas leakage monitoring device of homes and factories, it’s suitable for the detection of liquefied gas, butane, propane, methane, smoke, and so on. PRODUCT FEATURES
It adopt the top of the range dual-panel design with power indication and TTL signal output indication;
With DO switch signal (TTL) output and AO analog signal output;
The output signal of TTL is low. (When the output is low, the signal light can also be directly connected with a single chip microcomputer or a relay module);
The voltage value will be higher if the concentration of analog output voltage is higher.
Good sensitivity to liquefied gas, natural gas, city gas and smoke;
There are four screw holes for easy positioning;
Has a long lifetime and reliable stability;
Rapid response and recovery characteristics.ELECTRICAL PROPERTIESBR Input voltage : DC5V Power consumption ( current ): 150mA;
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 the voltage is about 4V.

SPECIAL NOTE
After the sensor is powered, it needs around 20 seconds to warm up to verify the measured date is stable. And the sensor heating is a normal phenomenon, on account of the internal electric wire, but it is not normal if it is vitally hot.
Including 9 Combustible Poisonous Gas Detector, MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135,very complete gas Detector Kit
With detailed tutorial and codes that can assist you demo, contain specifications of each sensor module to make everything easier.
All components are modular easy to connect and convenient to use
Quick-responding technical strengthen for free. Professional engineering team provides fast and free strengthen that can assist you solve every difficulty in learning
Nice plastic package will keep everything come in good condition