Atmospheric pressure

High quality barometers for meteorological applications

Sensors designed for accurate measurement of atmosperic pressure. DQA240.1 is more suitable for LSI-LASTEM data acquisition systems (0-1Vdc output). DQA801 is also suitable for integration in third part systems (0/4-20 mA output), its range is locally selectable by trimmer DQA251 is a high precision instrument for absolute pressure, QNH, QFE, QFF. Long-term stability and a web interface make it the perfect instrument for professional acquisition systems and meteorology, aviation. Heavy duty enclosure IP67, allows an easy installation also in harsh environmental conditions. This sensor is built according WMO and ICAO standards.

Barometric pressure


  • Wide range of models with technical specifications for meteorological applications;
  • Analogue outputs (DQA240.1, DQA801);
  • RS485, Ethernet digital output s(DQA251);
  • Very good accuracy: ±0.15 hPa (@20°C) ±0.20 hPa (-40÷60 °C) (DQA251);
  • QNH, QFE, QFF measurements (DQA251, Alpha-Log, Pluvi-ONE;
  • Alpha-Log and Pluvi-ONE data loggers are equipped with internal pressure sensor. In this document, tech-nical specification of this sensor are described (Read Alpha-Log/Pluvi-ONE column).

Barometric pressure

Available Models

Barometer. Modbus on RS485

Barometer. Modbus on RS485

Code: DQA240.1

Sensor is built according WMO and ICAO standards.
Barometer. 0/4-20 mA output. 10-30 Vdc/ac power supply

Barometer. 0/4-20 mA output. 10-30 Vdc/ac power supply

Code: DQA801

Barometric pressure sensor made for easy integration to third parties systems with accurate pressure measurement.
Barometer. 0-1 Vdc output

Barometer. 0-1 Vdc output

Code: DQA251

Barometric pressure sensor made for athmospheric pressure measurement using LSI-LASTEM systems. 0-1 Vdc output
documents LSI Lastem

Barometric Pressure