Our newly designed temperature controllers feature unsurpassed thermoregulatory performance. The TC-09D is designed to control the bath temperature in our CH-2 dual vessel chambers. A novel control algorithm results in quicker time to reach setpoint (6–10 min, from 22 ºC to 37 ºC). Our temperature controllers now feature analog outputs that produce signals compatible with most data acquisition systems (e.g., DAQ-PRO-U). The TC-09D has two heating controllers that can be used to regulate the bath temperature in the two baths of our CH-2 vessel chambers independently. The thermostat control can also be disabled, allowing the TC-09D to be used as a temperature monitoring and recording device (when using the analog output). Panel controls allow for regulating the bath temperature of both chambers, chamber 1 only, chamber 2 only, or monitor only (no temperature control).