The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this statutory responsibility, KNMI operates and maintains a nationwide seismic monitoring network consisting of multiple monitoring locations. Each location is equipped with seismological instruments and a data logger that records the measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to fulfil its legal mandate, and the data are also made publicly available for (scientific) research purposes. To maintain the monitoring network, KNMI requires seismological instruments that perform accurate and consistent seismic measurements and are capable of transmitting data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct procurement procedures for the acquisition of these instruments. The objective of this procurement is to contract a supplier f See Descriptive Document – Lot nr.: 1 Seismological Instruments Lot 1 Surface Accelerometer The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Surface accelerometers with integrated data logger. See Descriptive Document Last tender date: 10/01/2026 10:00:00 Type of contract: Supplies Authority: Ministerie van Infrastructuur en Waterstaat Information URL: https://www.rijksoverheid.nl/ministeries/ministerie-van-infrastructuur-en-waterstaat Document URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Tenders URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Duration contract months: 96 Lot involves: FrameworkAgreement Criteria definitions: Quality: 30 (See Descriptive Document) Price: 70 (See Descriptive Document) – Lot nr.: 2 Seismological Instruments Lot 2 Dataloggers The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Data loggers with 6, 12, or 16 channels. See Descriptive Document Last tender date: 10/01/2026 10:00:00 Type of contract: Supplies Authority: Ministerie van Infrastructuur en Waterstaat Information URL: https://www.rijksoverheid.nl/ministeries/ministerie-van-infrastructuur-en-waterstaat Document URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Tenders URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Duration contract months: 96 Lot involves: FrameworkAgreement Criteria definitions: Quality: 30 (See Descriptive Document) Price: 70 (See Descriptive Document)

Seismological Instruments Lot 1 Surface Accelerometer en Lot 2 Dataloggers

The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this statutory responsibility, KNMI operates and maintains a nationwide seismic monitoring network consisting of multiple monitoring locations. Each location is equipped with seismological instruments and a data logger that records the measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to fulfil its legal mandate, and the data are also made publicly available for (scientific) research purposes. To maintain the monitoring network, KNMI requires seismological instruments that perform accurate and consistent seismic measurements and are capable of transmitting data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct procurement procedures for the acquisition of these instruments. The objective of this procurement is to contract a supplier f See Descriptive Document – Lot nr.: 1 Seismological Instruments Lot 1 Surface Accelerometer The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Surface accelerometers with integrated data logger. See Descriptive Document Last tender date: 10/01/2026 10:00:00 Type of contract: Supplies Authority: Ministerie van Infrastructuur en Waterstaat Information URL: https://www.rijksoverheid.nl/ministeries/ministerie-van-infrastructuur-en-waterstaat Document URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Tenders URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Duration contract months: 96 Lot involves: FrameworkAgreement Criteria definitions: Quality: 30 (See Descriptive Document) Price: 70 (See Descriptive Document) – Lot nr.: 2 Seismological Instruments Lot 2 Dataloggers The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI´s servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Data loggers with 6, 12, or 16 channels. See Descriptive Document Last tender date: 10/01/2026 10:00:00 Type of contract: Supplies Authority: Ministerie van Infrastructuur en Waterstaat Information URL: https://www.rijksoverheid.nl/ministeries/ministerie-van-infrastructuur-en-waterstaat Document URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Tenders URL: https://www.tenderned.nl/aankondigingen/overzicht/442373 Duration contract months: 96 Lot involves: FrameworkAgreement Criteria definitions: Quality: 30 (See Descriptive Document) Price: 70 (See Descriptive Document)

Seismological Instruments Lot 1 Surface Accelerometer

The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI's servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Surface accelerometers with integrated data logger. See Descriptive Document

Seismological Instruments Lot 2 Dataloggers

The Royal Netherlands Meteorological Institute (KNMI) is legally mandated to monitor and analyse seismic activity in and around the Netherlands. To fulfil this responsibility, KNMI operates a nationwide seismic monitoring network consisting of multiple monitoring stations. Each station is equipped with seismological instrumentation and a data logger that records measurement data and transmits it to KNMI's servers via a router. KNMI analyses these data to meet its statutory obligations, and the data are also made publicly available for (scientific) research. To maintain and operate the monitoring network, KNMI requires reliable seismological instruments that perform accurate and consistent seismic measurements and are capable of delivering data to KNMI. As a contracting authority subject to public procurement legislation, KNMI is required to conduct a procurement procedure for the acquisition of these instruments. The objective of this procurement is to award contracts to one or more suppliers for the supply of seismological monitoring equipment. In addition, the procurement aims to establish an effective long-term relationship between KNMI and the selected supplier(s) for the provision of instruments throughout the duration of the contract. The seismological monitoring network requires measurement equipment for the following purposes: 1. To maintain the operational capability of the existing monitoring network. 2. To expand the existing monitoring network through the installation of new monitoring stations. Scope The scope of this procurement consists of the supply of seismological monitoring equipment, including: • Data loggers with 6, 12, or 16 channels. See Descriptive Document