Feature : Good sensitivity to a wide range of combustible gases,High sensitivity to Natural gas,Long life and low cost.
The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC. The sensitive material of the MQ-4 gas sensor is SnO2 which has lower conductivity in...
Specification : : Module Power: DC 9.00V 1A,Measuring Range : 0 - 14PH,Accuracy (+ or -) 0.1PH ( 24 C) Etc.
Application : water quality surveillance,aquaculture
This is an Analog PH Meter kit with industrial real-time online electrode, specially designed for Arduino and other microcontrollers , it uses an industry electrode and has built in simple convenient, practical connection and long life up to 1 year,...
Features : Good sensitivity to alcohol gas Long life and low cost Simple drive circuit
Sensitive material of MQ-3 gas sensor is SnO2, which has lower conductivity in clean air. When the target alcohol gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electronic circuit, Convert change of conductivity...
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