you only need the next number in the sequence, so there is no point in saving it. the light and temperature of the laboratory is automatically controlled. but for other businesses who have no knowledge of this area, can be more attractive. and they’re so easy to make too which is always a plus. if you want to buy the best model, you might need to spend $2,000. before accepting this, it would be wise to do your own investigation. one should not expect too many changes here, unless something interesting happens. use it, and do not use ‘power’ control. 