It is the box type temperature controller, which built TTM-004 into the metal plate. It is very easy and instant to use by wiring the back terminal stand for the heater, the temperature sensor and the power supply.
Please use BX-303 practically when the frequent shift from the place to the place is required in the laboratory etc.

To Specification
http: / / www.toho-inc.com/ english/ products/ bx303/ index.html

Cat alogue DL 0.4M
http: / / www.toho-inc.com/ english/ products/ catalogue/ 303.pdf