Smart Alarm: The CO2 detector features a dual light and sound alarm. Good air quality is indicated by a green light, and average air quality by a yellow light. You can set the alarm thresholds as needed.
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SeeedStudio ESP32 S3 N16R8 Home Assistant voice open source 2.4 GHz WiFi Bluetooth
Aliexpress UK
ANCEL BM300 PRO Product Function 1x BM300 PRO. ● Tests vehicle cranking system, cranking test. ● Cranking Test. ● 6V /12V/ 24V lead-acid & lithium batteries. ● Battery Tester. Automatic testing of 12V&24V starting system, supporting 12V&24V charging system testing.
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GPS Tracker for Samsung Android Tracker Kits Work with Google's Find Hub App Bluetooth Locator Finder Global Anti-lost Smart Tag
Aliexpress UK
1 x BM2 Battery detector. BM2 Bluetooth 4.0 Battery Monitor Feature BM2 Bluetooth 4.0 Battery Monitor Advanced. BM2 Bluetooth 4.0 Battery Monitor Advanced Features Receive notification of battery conditions when enter Bluetooth range.
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Wallet Finder, Bluetooth Tracker Item Locator for Luggage Tags, Passports for Android Phone Samsung Work with Google HUB
Aliexpress UK
1 x BM2 Battery detector. BM2 Bluetooth 4.0 Battery Monitor Feature BM2 Bluetooth 4.0 Battery Monitor Advanced. BM2 Bluetooth 4.0 Battery Monitor Advanced Features Receive notification of battery conditions when enter Bluetooth range.
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Smart Trackers Airtag For Apple Find My Anti Lost Device Bluetooth Mini Locator For Cars Pet GPS Finder Wireless Charging
Aliexpress UK
Receives notifications of battery conditions in Bluetooth range. Works with all 12V batteries. / Software included for Android and iPhone. Automatic synchronization when in Bluetooth range. Free app for iOS and Android.
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eppfun AK3046E Pro Wireless Bluetooth 5.2 Adapter for Airplane, with Aptx HD/LL/Adaptive Transmitter for Airpods, Headphones
Aliexpress UK
Keep your vehicle's battery in top condition with the Bryte Links BM2 Bluetooth Battery Monitor. This device connects directly to your 12V battery and pairs with your smartphone via Bluetooth 4.0, allowing you to monitor battery voltage, alternator output, and charging status in real-time. Receive alerts and notifications on your phone when the battery condition changes, and access historical data graphically to track performance over time. Perfect for cars, campervans, and leisure batteries, it offers short-circuit and reverse connection protection, supports monitoring up to four batteries simultaneously, and is easy to install with a free sticky pad included. Compatible with iOS 7.1+ and Android 4.3+, this tool helps prevent unexpected breakdowns by giving you insight into your battery's health.
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Recharageable GPS Tracker for iPhones Tag Work With Apple Find My Key Finder Pet Locator Luggage Bag Bike Bluetooth Smart Tag
Aliexpress UK
1 x BM2 Battery detector. BM2 Bluetooth 4.0 Battery Monitor Feature BM2 Bluetooth 4.0 Battery Monitor Advanced. BM2 Bluetooth 4.0 Battery Monitor Advanced Features Receive notification of battery conditions when enter Bluetooth range.
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UGREEN Bluetooth Tracker For Samsung Galaxy, Smart Tag GPS Locator Tracking Device, Item Finder for Keys, Wallet, Luggage, Pets
Aliexpress UK
1 x Battery Monitor BM2 Bluetooth 4.0 Device Car 12V Battery Tester. Receives notifications of battery conditions in Bluetooth range. Automatic synchronization when in Bluetooth range. Works with all 12V batteries.
eBay
Smart GPS Tracker Works With google find my device tracker Pet Kids Luggage Key Tracking Global Accurate Positioning Bluetooth
Aliexpress UK