There are two long straight probe support available for triple-sensor probes: a non-watertight and a watertight version. They consists of a stainless steel tube, 6 mm outside diameter, with six connector sockets in the front. The watertight version has a 9.9 mm outside diameter part for fixing the probe. The connector is coded, so that the probe will always be properly oriented in the support. It has three PTFE-coated cables with detachable BNC connectors marked with one, two and three rings indicating the connector number, which again corresponds to the sensor number on the probe.
There are two long straight probe support available for triple-sensor probes.
Both the 55H27 and the 55H28 fit into both the guide tubes and the 6 mm chuck.
The short 4 mm support (type 55H20) fits into both the 4 mm mounting tubes and the 4 mm chuck.