SYD24D-1R Electronic Alarm

1. Working environment temperature: -25℃～+55℃, working environment humidity (relative humidity): 95%. The voltage change range is -10%～+6% of the rated value (±20% when the battery is powered). When the frequency change range is ±5% of the rated value, the alarm works normally

2. The electronic alarm is suitable for the relevant technical conditions stipulated in the “Rules for the Classification and Construction of Sea-going Steel Ships”