HI, well i think, a false alarm will not cause any loss to company rather than creating some confusions on shop floor(mostly neglected in this Automated world). but if a alert is missed, it may affect the economy and heavy loss can be seen(if alert of coolant is missed in CNC and is not turned off,the overfilling of coolant may cause loss for company). Thus, according to me we should prefer a false alarm and not a missed alert. Regards, H.S.Lingayat