Altitude 853-series
853 instruments (except 853 MC) are front loaded for easy access.
Classic barometer with French text.
Pressure accuracy is ±7hPa (millibar).
Temperature reading ±1ºC (10ºC to 30ºC). ±2ºC (-20ºC to 60ºC).
Hygrometer reading ±10%.
All 842/843 instruments are front loaded for easy access.
All 852/853 instruments (except 853 MC) are front loaded for easy access.
The example here is a 852 C clock.
