Olympia BS 877 Starter Kit Baby Safety Wireless Alarm System with GSM Dialler, 868 MHz, 100 dB Siren, 2 Door/Window Contacts, Motion Detector, Remote Control

For parents who need to keep an ear on the nursery without being tied to a single room, the Olympia BS 877 Starter Kit brings together a 100 dB wireless alarm system and an integrated GSM dialler that calls or texts up to 10 programmed numbers the moment a sensor triggers. Unlike basic audio-only baby monitors, this kit pairs two door/window contacts and a motion detector with a backlit control unit that supports room monitoring, silent alarm, and hands-free talkback — so you can respond from anywhere with mobile coverage.

Highlights

• Integrated GSM module: sends alarm calls and SMS alerts to up to 10 phone numbers, no landline required
• Expandable 868 MHz wireless platform: supports up to 32 sensors, including additional Olympia door/window contacts, motion detectors, and remote controls
• 100 dB built-in siren plus silent alarm mode for discreet notifications
• Room monitoring (listen-in) and hands-free function let you hear and speak into the room remotely
• Voice output announces system status; backlit LCD display and keypad for local control
• DIY installation with pre-paired components; tamper protection and low-battery warnings for sensors

In daily use

Place the control unit near the nursery, fit the two door/window contacts on the door and window, and mount the motion detector in a corner with a clear view of the cot. Arm the system via the included remote control, the base unit keypad, or an SMS command. If a contact opens or motion is detected, the siren sounds and the GSM dialler immediately calls the first programmed number; if unanswered, it cycles through the list and sends SMS alerts. You can call in from your mobile to listen to the room, or use the hands-free function to comfort your child with your voice. Home mode lets you arm only perimeter sensors while moving freely inside, and silent alarm sends alerts without waking the baby.

Full specifications

• System type: wireless alarm system with integrated GSM dialler
• Wireless frequency: 868 MHz
• Max. connectable sensors: 32
• Alarm volume: 100 dB (integrated siren)
• Alert methods: call, SMS
• Programmable phone numbers: up to 10
• Control methods: remote control, base unit keypad, SMS commands
• Power supply (base unit): mains adapter (230 V AC)
• Backup battery (base unit): Ni-MH rechargeable battery
• Included components: 1x control unit, 2x door/window contacts, 1x motion detector, 1x remote control
• Special features: hands-free function, room monitoring (listen-in), silent alarm, low battery warning for sensors, tamper protection
• Expandability: yes, with Olympia 868 MHz accessories
• Installation: DIY (Do-It-Yourself)
• Operating modes: arm, disarm, home mode, silent alarm
• Application: baby safety, home security, elderly monitoring
• Door/window contact battery: 1x CR2032 per contact
• Motion detector battery: 3x AAA
• Remote control battery: 1x CR2032
• Display: backlit LCD display
• Voice output: yes, for system status announcements

Final note

The Olympia BS 877 Starter Kit is a complete baby safety and home monitoring solution that grows with your needs — add extra sensors to cover more rooms, and rely on the GSM dialler for alerts even when you are away from home.