Main chip: LM393, ZYMQ-5 gas sensor
Operating voltage: DC 5 Volt
Indication of the signal output.
Dual signal output (analog output, and TTL level output)
TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage.
Liquefied petroleum gas, natural gas, city gas, better sensitivity.
Has a long life and reliable stability
Fast response and recovery characteristics - See more at: http://www.ewallpk.com/home/1287-mq-5-mq5-methane-gas-sensor-shield-detector-module-for-arduino-mega2560-m27.html#sthash.CWhSlbWf.dpuf
Description: This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch.
Resistance and precision R25: 100kΩ ± 1% (at25 ℃)
B value and accuracy B25 / 85: 3950K ± 1%
Dissipation factor: 2 mW / ℃ (in air)
Thermal time constant: 12 s (in air)
Power Rating: 2.5 mW (at 25 ℃)
Operating temperature: -40 ~ 250 ℃
1 x 100Kohm NTC Thermistor
Need to measure water quality and other parameters but haven't got any low cost pH meter? Find it difficult to use with Arduino? Our analog pH meter, specially designed for Arduino controllers and has convenient and practical connector and a bunch of features. Instant connection to your probe an your Arduino to get pH measurements at ± 0.1pH (25 ℃).
Thermistor Temperature Sensor NTC MF52-103 3435 10K ohm 1%
Singal output:digital singal output
Out: power output, it can connect with IO interface
1 X Hall Sensor