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These tiny tags work exactly as advertised and the battery is long lasting. Good job Wireless Tag

My External Power Sensor ALS with LiPo battery works great monitoring the temperature inside my freezer. I bought the sensor hoping to improve battery life and stability in the cold. The LiPo's voltage has remained constant without recharging for nearly three months now. I also have several Tag Pro's. They work very well at temperatures above freezing, but their CR2032 batteries don't last long at temperatures near 0 F. The LiPo-based sensor solves that problem.

I use these tags In Australia to monitor freezer & fridge temperatures. This can then be presented to health authorities to demonstrate that our produce has been kept at the correct temperatures.

It has always worked as advertised

Reliable