The EI400WC Countdown Timer is an easy to installation and absolutely silent timer for energy savings, security, and convenience.

• Maximum time ON/OFF is 23 hours, 59 minutes.
• Minimum ON/OFF time is 1 minute.
• Provides up to three years of time keeping.
• User program selection is stored in non-volatile memory.
• A field selectable warning feature provides an audible and/or visual signal that the load is about to switch OFF.
• Functions to control all voltages 120-277 VAC up to 20 Amps.
• Applications include indoor lighting, outdoor lighting, HID lighting, whole house fans, bathroom fans, fountain pumps., etc.
• Provides true 3-way control allowing the load interval to be stopped/started using a standard mechanical switch.
• CR2 lithium battery provides a minimum 2 years of operation without AC power.
• No neutral required
• User settings stored in non-volatile memory.
• Low battery indicator. 
• User-selectable advance end-of-interval visual or audible warning.
• Controls all voltages and frequencies with no adjustments required.
• CFL/LED.