Bosch Smart Home - Zigbee Door/Window sensor, Gray IP45 BSEN-C2

A Clear Overview:

Forget searching every corner of your home—your door/window contact (plus) lets you instantly check in the app whether any door or window is open or closed. Receive real-time updates via push notifications or widgets, no matter if you're at home or on the go.

Maximum Intrusion Protection:

With the alarm system activated, your door/window contact (plus) instantly responds to an open window or door by triggering an alert. The "plus" variant goes even further by detecting shocks and initiating an intruder alarm immediately. Even better: once the alarm is armed, any suspicious activity involving open windows or doors will automatically notify you.

Reliable Energy Efficiency:

Thanks to the "Sustainable Ventilation" function, your door/window contact (plus) helps you conserve energy. When a window is opened for fresh air, the smart thermostats reduce the room’s temperature automatically—keeping you from wasting heat on the outdoors.

Flexible Application:

You define what counts as a door or window:

The Bosch Smart Home door/window contact (plus) is compact, discreet, and water-resistant, making it suitable for a variety of uses—anywhere you want to track open/close activity:

• Standard doors and windows
• Garage doors
• Garden sheds and gates
• Medicine cabinets
• Cleaning cupboards and pantries
• Mailboxes

And the list doesn't stop there! This versatile sensor keeps you informed about openings and closings throughout your entire home—wherever you choose to install it.

Smart Ventilation: Save Energy While Heating Wisely

Tired of heating the outside air? When the sensor detects an open window, it can automatically adjust the radiator thermostat, lowering the room temperature. This reduces heating costs effortlessly.

Multi-Purpose Button for Pause or Control

The built-in button on the smart sensor is just as functional as the contact itself. A quick double-click pauses its activity, allowing doors or windows to be opened once without triggering services or automations—ideal for airing out or letting the dog outside without setting off the alarm.

Key Features of Model 8750002090:

• Compatible with Bosch Smart Home and all Matter-supported smart systems across manufacturers
• Accurate detection of open or closed windows and doors
• Low-profile magnetic holder for discreet installation—even on multi-glazed windows
• Automatic temperature control integration with smart heating during ventilation
• Alarm activation when doors or windows open under an armed system
• Customizable button for personal automation scenarios

Technical Specifications for 8750002090:

• Model designation: BSEN-C2
• Product number: 8750002090
• EAN: 4062321542559
• Protection class: IP45
• Operating temperature range: -20 °C to +60 °C
• Maximum humidity: 85% (non-condensing)
• Sensor dimensions: 22 × 75 × 23 mm
• Magnet dimensions: 10 × 20 × 3 mm
• Sensor weight: 22 g (without battery)
• Magnet weight: 5 g
• Frequency: 2.4 – 2.4835 GHz
• Wireless protocol: ZigBee 3.0
• Max transmission power: 10 mW
• Range (open field): <100 m
• Software class: A
• Receiver category: 2
• Battery type: 1 × CR123A
• Battery life: Up to 5 years