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 (205, 205A, 205B); 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 (205, 205A, 205B), 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 (402, 404, 406, 408, 410, 412) allowing the sample to be diverted from the main track to an internal path; wherein track segments (206, 208) 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 (205, 205A, 205B); 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 (205, 205A, 205B), 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 (402, 404, 406, 408, 410, 412) allowing the sample to be diverted from the main track to an internal path; wherein track segments (206, 208) 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 (402, 404, 406, 408, 410, 412) allowing the sample to be diverted from the main track to an internal path; wherein track segments (206, 208) 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.