Today, this product range has expanded to include a large variety of measuring instruments for: Temperature, Humidity, Air velocity, Flue Gas Analysis, ultrasonic leak Sound meters, Transmitters for; Humidity & Temperature, Differential pressure, Dew point of compressed Air, Compressed air Counter, Data Monitoring / Logging System, Standalone portable loggers, Wireless Data Monitoring System. Aaru offers quality standards and up to One year warranty on all instruments.