This microscope stage temperature control system ensures accurate, stable thermal control of live biological specimen for observation. The stage warming deck maintains a constant temperature less than +/-1° C between 20°C to 50°C (68~122°F). This microscope stage warmer is designed for checking semen motility and velocity or live biological specimen. It can be installed on different brands of biological compound and stereo microscopes. Convenient installation for any standard microscope stage. Two LED digital displays show the current Stage Temperature and the Preset Temperature. The two touch pad buttons allow you to adjust the temperature settings up and down. Power input: AC 115V 50/60Hz or 230V AC Power output: 50W ApplicationsChemistry, Biotechnology .tb_part { width: 100%; border: solid 0px #ccc; font-size:12px; margin-top:-15px; } .tb_part tr { height: 30px; line-height: 30px; } .tb_part td { white-space: nowrap; } .tb_part_1 td { white-space: wrap; } .normal{ border-left:solid 2px black; border-right:solid 2px black; } .tb_part tr.normal td { border:solid 1px #ccc; padding-right:5px; } .tb_part tr.normal:nth-child(2){ border-top:solid 2px black; } .tb_part tr.normal:first-child{ border:none; } .tb_part tr.normal:first-child td{ border:none; font-weight:bold; font-size:16px; } .end-border{ border-bottom:solid 2px black; } .tb_part tr.memo,.tb_part tr.memo td{ border:none; } No Optical Data