The 102 Water Level Indicator uses the same electronics and reel as the 101, but has accurate, laser marked coaxial cable. It is ideal for use in narrow diameters or when snaking past down-well pumps.
The flexible cable has a heavy duty polyethylene jacket and markings permanently laser etched every 1/100 ft or each millimeter. A stainless steel central conductor adds strength and limits stretch.
The narrow probes are stainless steel. The P4 Probe is 0.157" (4 mm) in diameter, ideal for accessing narrow diameters, including the channels of a Solinst CMT System. The heavier P10 Probe is 3/8" (10 mm) in diameter, with 10 segmented stainless steel weights for flexibility, ideal for greater depths.