| Outside | 
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    |  | Outside Air (ThermoPro) Temperature
 Tolerance: 2 °F
 Relative Humidity
 Tolerance: ±2 % (in 30-80% rh)
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    |  | RasPi 4 - DS2 Outdoor temperature °F
 Claimed accuracy: ±0.9 °F
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    |  | Sea-level air pressure BMP085 on Arduino/Harstad (upstairs)
 +21.78 hPa adjustment for h=183m
 Claimed accuracy: ±1 hPa
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    |  | Sea-level air pressure BMP180 on RasPi-4 (upstairs)
 +21.78 hPa adjustment for h=183m
 Claimed accuracy: -1 ±1 hPa
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    |  | Sea-level air pressure BME280 on RasPi-5 (upstairs)
 +21.78 hPa adjustment for h=183m
 Claimed accuracy: ±1 hPa
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    |  | Sea-level air pressure BME280 on RasPi-3 (downstairs)
 +21.56 hPa adjustment for h=181.13m
 Claimed accuracy: ±1 hPa
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    | Upstairs
 |  | 
  
    |  | Raspberry Pi 4 - DS1 indoor temperature
 Shack floor near cupboard
 Claimed accuracy: ±0.5 °C
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    |  | Upstairs indoor temperature °C BME280 on RasPi-5
 On the bench
 Claimed accuracy: ±1 °C
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    |  | Upstairs indoor temperature °C BMP085 on Arduino/Harstad
 Low down in shack
 Claimed accuracy: ±1 °C
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    |  | Upstairs ambient air humidity BME280 on RasPi-5
 On the bench
 Claimed accuracy: ±3%
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    |  | Upstairs Air Relative Humidity
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