The 2M Cutoff Alarm Switch with Manual Reset from McDonnell Miller is a critical safety device designed to alert operators of low water conditions in steam and hot water boilers. This model features a durable construction and is compliant with ANSI standards, ensuring reliable performance. The manual reset function provides an added layer of safety, allowing for controlled operation. Operating effectively within a temperature range of 32°F to 250°F, the 2M Cutoff Alarm Switch is essential for maintaining safe water levels and preventing boiler damage.