Code: HIDR-4
A serial meter counter with a wheel calibrated in size to show exactly how many meters below ground there is a drainage pipe.
In order the meter counter would show exactly how many meters below the ground the cleaner pipe is, a precisely calibrated wheel for accurate meter counting is moving along it.
Code: HIDR-5
A serial meter counter with a wheel calibrated in size to show exactly how many meters below ground there is a drainage pipe. The meter counter with 7mm axis has more durable housing and axis compared to the meter counter with 4.5mm axis.
Code: HIDR-6
In order the meter counter would show exactly how many meters below the ground the cleaner pipe is, a precisely calibrated wheel for accurate meter counting is moving along it.