A temperature control system for use in in vitro diagnostics comprising: a track system , a plurality of carriers that utilize the track system configured to provide one or more paths between a plurality of testing stations ; and a passive temperature controlling device connected to each carrier , wherein the carriers have a payload carrier with an insulation material, and an active temperature controlling device connected to each carrier , wherein each carrier is configured to hold one or more payloads and move the one or more payloads to one of the plurality of testing stations , and wherein the passive temperature controlling device and the active temperature controlling device limit temperature change of the one or more payload, characterized in that the track system comprises: a main outer track formed by track segments (202, 204, 206, 206A, 206B, 208, 208A and 208B), wherein the main outer track is a circular track; internal paths (210, 2010A and 2010B) forming pullouts from the main track; decision points allowing the sample to be diverted from the main track to an internal path; wherein track segments and internal path are integrated into a first analyzer module configured to perform IVD tests, and track segments (206A, 208A and 210A) are integrated into a second analyzer module configured to perform IVD tests, and track segments (206B, 208B and 210B) are integrated into a third analyzer module configured to perform IVD tests, and wherein the active temperature control device comprises an electrocaloric cooling device. a track system , a plurality of carriers that utilize the track system configured to provide one or more paths between a plurality of testing stations ; and a passive temperature controlling device connected to each carrier , wherein the carriers have a payload carrier with an insulation material, and an active temperature controlling device connected to each carrier , wherein each carrier is configured to hold one or more payloads and move the one or more payloads to one of the plurality of testing stations , and wherein the passive temperature controlling device and the active temperature controlling device limit temperature change of the one or more payload, characterized in that the track system comprises: a main outer track formed by track segments (202, 204, 206, 206A, 206B, 208, 208A and 208B), wherein the main outer track is a circular track; internal paths (210, 2010A and 2010B) forming pullouts from the main track; decision points allowing the sample to be diverted from the main track to an internal path; wherein track segments and internal path are integrated into a first analyzer module configured to perform IVD tests, and track segments (206A, 208A and 210A) are integrated into a second analyzer module configured to perform IVD tests, and track segments (206B, 208B and 210B) are integrated into a third analyzer module configured to perform IVD tests, and wherein the active temperature control device comprises an electrocaloric cooling device. a main outer track formed by track segments (202, 204, 206, 206A, 206B, 208, 208A and 208B), wherein the main outer track is a circular track; internal paths (210, 2010A and 2010B) forming pullouts from the main track; decision points allowing the sample to be diverted from the main track to an internal path; wherein track segments and internal path are integrated into a first analyzer module configured to perform IVD tests, and track segments (206A, 208A and 210A) are integrated into a second analyzer module configured to perform IVD tests, and track segments (206B, 208B and 210B) are integrated into a third analyzer module configured to perform IVD tests, and wherein the active temperature control device comprises an electrocaloric cooling device. <EOS>