Is this paragraph good, understood, and out of free ? The results show that at 5 seconds delay, the gas readings were not changing, and so five seconds are not enough for the sensor’s response. When we increased the delay time to (15,20) seconds, the readings started to change, but the maximum concentration was not read in the source’s location. At (30,40) seconds delay, the readings were good enough, the maximum reading was in the correct location. We choose the minimum time delay could give a response that is able to locate the source correctly, which was 30 seconds.