CHF14.20 per piece for 2 units
TFA Info
Question about TFA Info
What is the temperature range of both internal and external thermometer?
I found the following information on the box: outdoor -40...+60°C, indoor -10...+60 °C, accuracy: +/- 1°C, humidity 10...90% +/-3%, outdoor wireless range: up to 80m @433MHz
Only the manufacturer would know how high and low the range is set.