Indigo family replaces HMT330, DMT340, MMT330, PTU300, and HMT330MIK Get to know the Indigo family HMT330The equivalents for the HMT330 series are the Indigo500 series transmitter with the following Indigo probes: HMT331 for wall mounting is now HMP1 probe + INDIGO500 transmitterHMT333 for duct mounting and tight spaces is now HMP3 and HMP9 probes + INDIGO500 transmitterHMT334 for high pressures up to 100 bar and vacuum conditions is now HMP4 + INDIGO500 transmitterHMT335 for high temperatures is now HMP5 + INDIGO500 transmitterHMT337 for high humidity and meteorological applications is now HMP7 + INDIGO500 transmitterHMT338 for pressurized pipelines up to 40 bar is now HMP8 + INDIGO500 transmitterDMT340The equivalents for the DMT340 series are the Indigo500 series transmitter with the following Indigo probes: DMT341 for wall-mounting, see also DMP7DMT344 for pressurized processes, see also DMP8DMT347 with small pressure-tight probe, see also DMP7DMT348 for pressurized pipelines, see also DMP8DMT345/346The equivalents for the DMT345/346 series are the Indigo500 series transmitter with the following Indigo probes: DMP5 and DMP6. MMT330The equivalents for the MMT330 series are the Indigo500 series transmitter with the following Indigo probes:MMT332 for high pressure installations, see also MMP8MMT337 for tight spaces with a thread connection, see also MMP8MMT338 for pipeline installations, see also MMP8PTU300The equivalents for the PTU300 series are the Indigo500 series transmitter with the following Indigo probes: PTU301 for wall mounting is now HMP1 probe + INDIGO520 transmitterPTU303 for duct mounting and tight spaces is now HMP3 and HMP9 probes + INDIGO520 transmitterPTU304 for high pressures up to 100 bar and vacuum conditions is now HMP4 + INDIGO520 transmitterPTU305 for high temperatures is now HMP5 + INDIGO520 transmitterPTU307 for high humidity and meteorological applications is now HMP7 + INDIGO520 transmitterPTU308 for pressurized pipelines up to 40 bar is now HMP8 + INDIGO520 transmitterView the Barometric pressure measurements with Indigo520 transmitter.HMT330MIKReplaced by Indigo500MIK All the Indigo probes are also compatible with compact Indigo300 and Indigo200 transmitters. Note that the MI70 handheld is replaced by the Indigo80 handheld device.