Dahua Technology ISC-D109L Information The Dahua Technology ISC-D109L is a walk-through metal detector that is designed for use in a variety of security applications. It features 9 independent detection zones, each with its own corresponding indicator light. The detector also has 2 sets of 5-digit high-brightness red LED displays, which show the number of people who have passed through the detector and the number of alarms that have been triggered. The ISC-D109L has a global sensitivity that can be adjusted from 0 to 399, and each zone sensitivity can also be adjusted independently. The detector also has an automatic frequency search function, which allows it to select the optimal operating frequency for the environment. There are 99 alarm tones that can be selected, and the alarm volume can be adjusted from 0 to 10 levels. The detector also has a mute mode that can be enabled to silence the alarms. The ISC-D109L has a number of features that make it a versatile and effective security ...