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Details
The magnetic sensors of the SATEL MMD-300 wireless opening detector are based on reed switches that are closed in sufficiently strong magnetic field of the magnet (when the magnet is close to the reed contact) and opens when the magnet is moved away. Such sensors are basic elements of perimeter protection systems and their primary task is to detect attempts of opening doors and windows.
The SATEL MMD-300 wireless detector has been designed for use in systems based on MICRA G2701 module. It wirelessly communicates with the module in the 433.05 ÷ 434.79 MHz band.
An advantage of magnetic sensors over motion sensors mounted in rooms is that they trigger alarm before the thief enters a room. In addition, alarm systems based on such sensors are good solutions for pet owners - they are not sensitive to the presence of animals in the rooms.
The detector can operate in the following modes:
- normal - each alarm results in sending a radio transmission
- energy save - after sending information about the alarm caused by opening the reed switch contacts or opening the additional input, the next transmission containing information on this alarm will be sent at the earliest after 3 minutes (tamper alarms are always sent immediately)
- test - each alarm is signaled only by the LED (for 2 seconds)
Distinguishing features
- two reed switch sensors (selectable) for flexible installation options
- input for connecting an external sensor to protect two points (e.g. two sashes of one window) with a single device
- energy management system allowing many years of operation without having to replace the CR123A lithium battery
- detection of tampering, i.e. opening the enclosure or removing the device from the mounting surface
- additional input for an NC type hardwired detector
- designed for surface mounting
- enclosure made of white plastic
- intended for installation on a non-metallic surface
- magnetic sensor based on a modern, selected reed switch
- stability and repeatability of parameters
- operational reliability
Specifications
Model | MMD-300 | ||
Product type | Reed detector | ||
type | Wireless | ||
Brand | Satel | ||
Color | White | ||
Housing material | Plastic | ||
Compatibility | Perfecta WRL, Perfecta-T WRL, Perfecta-IP WRL, VERSA-MCU, MICRA, MRU-300, MTX-300 | ||
Parameters | |||
Installation | Surface | ||
Input for connecting an additional sensor | Yes | ||
Frequency band of the radio module | MHz | 433.05 – 434.79 | |
Anti-tamper protection | Yes | ||
Others | |||
Battery type | CR123A 3V | ||
Battery life | years | up to 3 | |
Standby current drawn | mA | 0.08 | |
Maximum current consumption | mA | 27 | |
Environmental class | II | ||
Operating temperature | °C | -10 ...+ 55 | |
Max. humidity | % | 93 +/-3 | |
Dimensions | mm | 24 × 110 × 27 | |
Weight | kg | 0.06 |