CT-100-C portable tachometer with both contact and optical probe (60 to 60,000 RPM and 4 to 2,500 m/min).

CT-100-O portable tachometer with optical probe (60 to 60,000 RPM and 4 to 2,500 m/min).

AMI 300 : Portable multi-parameters device with Functions: Pressure, air velocity, airflow, hygrometry, temperature, air quality, tachometry, which makes it ideal for HVAC, facility managment, and commissioning engineers.