The procurement includes 40 units of multi-sensor weather stations that measure several key meteorological parameters, such as air temperature, relative humidity, wind, and [solar] radiation. The weather stations will form a comprehensive urban climate measurement network in Helsinki and the wider Helsinki Metropolitan Area. The weather stations must be operable in Arctic environmental conditions, providing system stability according to specified requirements. Mandatory requirements for the weather stations are described in this tender request document and in detail in annex 1: General description. The weather stations 40 units to be acquired is a one-time purchase plus possible option purchase. The weather stations 40 units must be delivered by latest 31.10.2026. Annexes: annex 1: General description annex 2: the draft supply agreement annex 3: JYSE 2025 SUPPLIES General Terms of Public Procurement in Supply Contracts

The procurement includes 40 units of multi-sensor weather stations that measure several key meteorological parameters, such as air temperature, relative humidity, wind, and [solar] radiation. The weather stations will form a comprehensive urban climate measurement network in Helsinki and the wider Helsinki Metropolitan Area. The weather stations must be operable in Arctic environmental conditions, providing system stability according to specified requirements. Mandatory requirements for the weather stations are described in this tender request document and in detail in annex 1: General description. The weather stations 40 units to be acquired is a one-time purchase plus possible option purchase. The weather stations 40 units must be delivered by latest 31.10.2026. Annexes: annex 1: General description annex 2: the draft supply agreement annex 3: JYSE 2025 SUPPLIES General Terms of Public Procurement in Supply Contracts