– February 3, 2017
how can i see the schematic diagram of this product ??
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MQ-4 gas sensor has high sensivity to Methane, also to Propane and Butane. The sensor could be used to detect different combustible gas.
Flame Sensor 120 deg. range is able to detect the flame band respectively in the range of 700-1100 nm.
This switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other devices.