"additional alarm" is correct and usable in written English.
You could use it in situations where you are talking about an alarm system that has been augmented with extra features. For example, "The security system was upgraded with additional alarm sensors to cover every entry point."
"If you have an additional alarm, you can put it in the family room or the recreation room," she said.
The presence of space-time clusters of P. malariae infection should serve as an additional alarm signal.
Don't smoke or use matches, as you could set off an additional alarm; in the worst case scenario completely disabling the lift and leaving you stranded for longer.
He also noted that in nearly half of the E.P.A.'s own case studies, the cost of the new rule would outweigh the benefits, raising additional alarms.
Poor data quality, plus factors such as the proportion of patients treated by these physicians in nursing homes or hospices are likely explanations for most of these additional alarms.
When the agents held the bag for a manual security check and scan, it set off additional alarms.
There were two additional false alarms during the evening rush on the D and F lines, when the police investigated reports of suspicious white powder and found it to be baby powder, officials said.
Table 2 Results of laboratory tests for a simple threshold-based model Hand Accuracy Sensitivity Specificity Left 76.3%83.5%52.1%1% Right 77.9%87.3%% 62.5% When tuning the model parameters, sensitivity was given a priority over specificity, as it is in our interest to detect all falls, even if it results in some additional false alarms.
Shell's lobbying against binding EU renewables targets and its decision to drill for Arctic oil, which cannot safely be burned, give additional cause for alarm.
Most Palestinians living in Jerusalem already view the Israeli government as an occupying power, so the new government's tilt toward the right was largely considered business as usual rather than any additional cause for alarm.
But there's more, automatic lowering of volume if motion is not detected, additional sensors for alarms, and detecting users for HVAC systems.
