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【1800 mAh Rechargeable Battery】The 1800 mAh battery of the combustible gas detector provides over 20 hours operation
providing a comprehensive view of indoor air quality for homes
and switch between different interfaces
【Audible & Visual Alarms with Mute Function】 When a leak is detected
ThermElc TE-B2 10PCS Bluetooth Temperature Data Logger, Auto PDF CSV Report, Compare Multi-Devices Data, Monitor Cold & Frozen Storage hvac tool set 【1800 mAh Rechargeable Battery】The 1800Multi Device Data ComparisonOur temperature recorder comes with free smart APP, allowing you to compare data charts across multiple devices. With this feature, you can easily monitor and analyze temperature data across different locations and times, making informed decisions for your needs. Visual LED Indicates, APP Sounds and Message Alarm When the temperature exceeds set threshold, the LED light of our temperature data logger flashes and APP sounds