... compressors parallel connection, to reduce noise and improve the cooling temperature come to -86 steady. 9. 2-4 hours come to ... configuration page 14, Audible and visual alarm: High or low temperature alarm, Power failure alarm, Low battery alarm, Door ajar alarm ... failure alarm 15. With temperature printer, record 7days data. 16. 72 hour battery back up for printer and controller display. 17. 4units ...