Model Number: fax timer-1-1-1 Brand Name: Kerde Electric Key Specifications/Special Features: Purpose: avoiding rubbish fax and prankcallInterface: standard telephone typeApplication: fax telephonePower supply: 1x1.5V AAA dry batteryWorking mode: automatic cycle

Maximum setting time: 6 days 23hrs 59min

Minimum setting time: 1 minute

Lightning protection: yes