Capacity of the sensorhead-battery is insufficient to bridge dark periods at this location in the Netherlands: however, no display of data-breakdown => 'strange data display'. Battery-Booster received March2022, but then no hurry to fit, because in summer plenty of sun for 'normal' supply: deferred in favour of other priorities, but MidJanuary2023 the low lightlevel has forced realisation. All Tempest-sensors (unlike Nexus, WS7000 en Domoticz): in 'normal-path' settings not user-correctable, but only at Weatherflow-server or at end of chain (in Domoticz). Temperature: Tempest & WS7000P25s & GW1000/WH31A_6 have comparable lines, bias of TFA_Nexus with Nexus1_Temp250 adjusted by -1 on Nov30,2022. Nexus2_Temp150 seems end-of-life since Feb02, 2022, sometimes flipping. Rel.Humidity: Tempest & WS7000P25s & GW1000/WH31A_6 have comparable lines. TFA_Nexus with both sensors deviating from other 3 sensors. Nexus2_RV150 seems end-of-life for RH since Feb02, 2022: replacement of Sep28,2022 equally bad, therefore now only present as placeholder. Precipitation/Rain: - TFA_Nexus - resolution = 0.7mm - LaCrosse_WS7000 - resolution = 0.35mm & sum-accuracy = 2% +/-1mm - GW1000/WH40 - resolution = 0.1mm& sum-accuracy = 5% - Tempest - intensity-accuracy = 0,2mm/hr & sum-accuracy = +/-10% WS7000-graph/table shows dips not present in the direct read-outs [software-problem?]. Till Feb03, 2022 big differences for heavy precipitation measured by Tempest: then Auto-calibration adjusted at Weatherflow-server. Feb18, 2022 Storm Eunice demonstrates that Tempest-sensor is sensitive for vibrations induced in mast&sensor by strong winds. Since Oct31, 2022 also measurements available from GW1000/WH40. Air Pressure: All pressure-sensors have remarkable 'integer-jumps', obvious for WS7000, not clear for others. For Tempest December 01, 2021 manually corrected in Domoticz by -3hPa. May13, 2021 the pressure 'auto-aligns' more or less with pressure read by other sensors. => Tempest-line now comparable with other 3 sensors calibrated against KNMI AWS_Twente. Nexus2_BME280 (annex to SDS011) had strong 'end-of-life'-effects with jumping values: Feb07, 2023 replaced. Since Oct31, 2022 also pressure measurements included from GW1000. December 2022, readout from Nexus1' BMP180 starts to become erratic: provisionally remedied by addition of filtering, but need for replacement seems eminent. Wind: Extensive comparison (including adjusted values) at http://vannwnhzn.nl/Experimenten.html#07 No conclusion possible. Light/UV: Extensive comparison (including adjusted values) at http://vannwnhzn.nl/Experimenten.html#03 Tempest & WS7000P19 comparable lines. Nexus_Wind_Light [~ solar-jar] peaking out at clear weather, but clearly off for dark&cold weather in winter. UV: Very variable picture for all sensors relative to references OpenUV and UV-Calc. Oregon UVN800 clearly out of range & unreliable. Developed & Testing: - direct readout of SensorUDP-messages for Domoticz@RPI, WeeWX@RPI and WeatherDisplay@PC. ToDo: - repair/replacement of Nexus2_T&H