Countdown timer

Suitable for Indoor use Dimensions: 500mm (W) x 110mm (H) x 40mm (D) Power consumption: 40W Precision: < 0.1 second per 24 hours Countdown time range: days to 1 second LED digit display: 50mm high characters with high-efficient red colour Power voltage: 220VAC There is an internal battery to maintain the count when the main power is off