Smart Citizen Kit =========== !!! info "A note about versions" The [**SCK 2.0**](https://docs.smartcitizen.me/hardware/legacy/sck.md#sck-20) was the development version for the now commercially available **SCK 2.1** sponsored thanks to the [iSCAPE project](https://www.iscapeproject.eu/) under European Community’s H2020 Programme under Grant Agreement No. [689954](https://cordis.europa.eu/project/rcn/202639/en) !!! tip "Quick links" :rocket: **Installation**: [start.smartcitizen.me](https://start.smartcitizen.me/) :earth_africa: **Platform: [smartcitizen.me/kits](https://smartcitizen.me/kits)** :speech_balloon: **Discuss: [forum.smartcitizen.me](https://forum.smartcitizen.me)** :question: **Support: [support@smartcitizen.me](mailto:support@smartcitizen.me)** ## :ear: Measurements All the Smart Citizen Kit new sensors generation measure **at least** air temperature, relative humidity, noise level, ambient light, barometric pressure and particulate matter (PM). ### SCK 2.0  The **non-commercially available** SCK 2.0 components are listed below: 1. Smart Citizen Kit 2.0 with Particle Sensor and battery with two mounting brackets. 2. MicroSD card and microSD adapter to SD. 3. USB cable and a USB charger. The measurements of the SCK2.0 are listed below: | Measurement | Units | Sensors | |--------------------------------|-------|-----------------------| | Air temperature | ºC | Sensirion SHT-31 | | Relative Humidity | % REL | Sensirion SHT-31 | | Noise level | dBA | Invensense ICS-43432 | | Ambient light | Lux | Rohm BH1730FVC | | Barometric pressure | Pa | NXP MPL3115A2 | | Particulate Matter PM 1 / 2.5 / 10 | µg/m3 | Planttower PMS 5003 | !!! info "Find out more" Except for the sensors, most information about the SCK2.0 is the same as the one for SCK2.1. More information about the metal oxyde sensors can be found [here](https://docs.smartcitizen.me/knowledge/air/chemical/SGX_MICS.md) The firmware for the 2.0 is still maintained and can be found in [Github](https://github.com/fablabbcn/smartcitizen-kit-20).