; optional environmental refrigerant;
2. 0.5℃ precisely temperature control;
3. The intelligent temperature controller has 2 control modes, applicable to different applied occasions; with various setting and display functions;
4. Dual temperature and dual pump to satisfy different needs of fiber laser device and the lens;
5. With Ion adsorption filtrating and test functions conform to fiber laser device operating requirements;
6. Multiple alarm functions: compressor time-delay protection, compr