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△Built-in buzzer & LED alarm, over-limit alarm function. Probe Type (T:Temperatur; H:Humidity): T&H External. △The sensor was produced by Switzerland, high accuracy. △1 x 6LR61 battery, working for 2 months and easy to replace battery.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.