smanos DS-2300 Door Window Contact Sensor - for smanos Home Alarm Systems Multipurpose contact sensor works well with any door, window or gate. An alarm signal will be sent to the system when triggered (separated). It also comes with tamper protection to ensure system integrity, and can work with other wired detectors. It will play a greater role when connected to other smanos security system products Easy Installation: The contact contains a transmitter and a magnet, which can be mounted on any gateway that can be opened or closed. Separate the transmitter and magnet with the space more than 2 cm, and make sure the triangle mark is close to each other and within the range of 1 cm Ideal for Residential or Commercial Use. Designed to work embedded in doors, windows, cabinets, safes or anywhere you want to be notified when something is opened or closed Package: Includes 1 transmitter with LED indicator, 1 magnet and 1 tamper switch. Transmitter Dimensions (LxWxH):72 x 28 x 10mm; Magnet Dimensions (LxWxH):58 x 14 x 9.5 mm Signal Transmission & Low Battery LED Indicator  Ensures optimal magnet placement - Flash once  intruder is detected - Flash once per 3 seconds after triggered  Low battery warning Door/Window protection Ideal for Entry/Exit routes or medicine cabinets, gun safes or drawers Pet Tolerant detector Low battery indicator Tamper Protection Battery powered Energy Saving Compatible with any smanos Alarm System(L020, S105, W100, W100i, W020, W020i, X330 and the SS2800) Transmit distance: 80m (262&#039;) (open area).