Extech 407112 Vane Thermo-Anemometer Heavy Duty features: Multifunction Air Velocity Meter with wide temperature range; High accuracy via low friction ball bearing vane wheel on 39" (1m) cable; Utilizes a Type K sensor for temperature measurements; Data hold.
Extech 407123 Hot Wire Thermo-Anemometer Heavy Duty features: Telescoping probe is ideal for measuring in HVAC ducts and other small vents; extends up to 4ft (1.22m)long; Super large 1.4" (36mm) dual LCD display; Min/Max, Data Hold.
Extech 451112 Thermo-Anemometer Big Digit features: Multifunction Air Velocity Meter with wide temperature range; High accuracy via low friction ball bearing vane wheel on 39" (1m) cable; Utilizes a Type K sensor for temperature measurements, etc.
Extech 45118 Mini Thermo-Anemometer features: Waterproof pocket size with Air Velocity, Temperature and Windchill; Display Air Velocity and Temperature or Windchill; Selectable averaging function of 5, 10, or 13 second intervals, etc.
Extech 451181 Printing Anemometer Hygro-Thermometer: Measure, record, print and download air flow measurements to a PC; Simultaneously measures and displays Air Velocity, Temperature,Humidity, Wet Bulb, plus calculates CFM/CMM; Measure, record, print and download air flow measurements to a PC and much more.
