Oven Industries Inc, Camp Hill, Pa, has released its RS232 and RS485 communication port temperature controllers for heating and cooling. The controllers’ bidirectional or unidirectional H-bridge configuration creates a seamless transition between heating and cooling as it commands the thermoelectric modules. The included software supports the user in changing control configurations through the RS232 or RS485 interface, which has 1,500 VAC isolation from the electronic circuitry, virtually eliminating interference from noise or errant signals. Once the temperature controller is set up, the computer may be disconnected, and the temperature controller becomes a standalone unit—or the computer can remain connected for data acquisition. The load circuit is pulse-width modulated at 2.7 KHz and delivers a load current of 0.1 to 25 Amps. For more information, visit Oven Industries.