The testo 425 hot wire anemometer provides incredible accuracy and is easy to use. The telescoping handle of this CFM meter extends to 33 inches, putting even high-up ductwork within reach. The testo 425 anemometer is ideally suited for low flow and velocity applications, and provides accurate, fast, and easy readings.

Features:

Telescoping hot wire probe
Measures velocity, volume flow (CFM), and temperature
Timed and multi-point average flow calculations
Auto-off function saves battery life

More products TESTO

TESTO 872 - THERMAL IMAGER WITH APP

• Highest image quality: IR resolution of 320 x 240 pixels, via integrated testo SuperResolution Technology 640 x 480 pixels
• Precise measurement: thermal sensitivity of 0.06°C
• Smart and wireless: use your mobile device with the free testo Thermography App and wirelessly transmit readings from the testo 770-3 clamp meter and the testo 605i humidity measuring instrument (both available separately)
• Innovative functions, such as testo ScaleAssist and testo ?-Assist for comparable, error-free thermal images

TESTO 512 - PRESSURE AND FLOW VELOCITY MEASURING INSTRUMENT 0 TO 2000 HPA

• 7 pressure units to choose from: psi, kPa, hPa, mmH2O, mmHg, inH2O, inHg
• Large measuring range up to 2000 hPa
• TopSafe protective case (optional) protects against impact, dirt, and spray water
• Backlit display / min and max values / hold function

TESTO 330-2 LL FLUE GAS ANALYZER 0632-3307

• High-resolution colour display for the graphic representation of your measurement data
• Extended measurement menus - such as gas pipe testing - for a comprehensive analysis of your heating system
• Logger function for easy long-term recording of the measurement curve
• Graphic processing of measurement data

TESTO 270 - COOKING OIL TESTER

• Improved ergonomic handle and rugged design
• Easy to clean under running water (IP65)
• Large, illuminated back-lit display and LED visual alarm indication
• Hold and auto-hold function

TESTO 770-2 - HOOK CLAMP METER WITH THERMOCOUPLE ADAPTER

• Unique hook-on function separates and grabs wires, without using your hands
• Retractable post makes hook release fast and easy
• µA for flame rod (ignition flame sensor) testing, and can measure temperature using type K thermocouple adapter

TESTO 176T2 - TWO-CHANNEL TEMPERATURE DATA LOGGER

• Two external RTD sensor connections for highly accurate data logging
• Large easy to read backlit display
• Capable of storing up to 2,000,000 temperature readings
• Rugged and waterproof according to IP65

TESTO 815 - SOUND LEVEL MEASURING INSTRUMENT

• Frequency evaluation according to characteristic curves A and C
• Easy to adjust (adjustment screwdriver included in the scope of delivery)
• Min./max. memory
• Integrated tripod knuckle screw (1/4 inch)

TESTO 885-1 - THERMAL IMAGER (320 X 240 FPA)

• 640 x 480 SuperResolution images using included IRSoft analysis
• Large 4.3" rotating touchscreen display
• 2GB SD card for storage included
• Optional lens protection glass

TESTO 477 - LED STROBOSCOPE

• Very high measurement range (up to 300,000 flashes per minute)
• Very high illumination (up to 1500 Lux)
• Long operating times (battery power for up to 5 h)
• Trigger input and output (for connectivity to external systems and control via external sensor)

TESTO 440 - INDOOR COMFORT COMBOKIT WITH BLUETOOTH

• Accurate measurement results, thanks to air density compensation via integrated absolute pressure measurement
• Measuring range: 0 to 10,000 ppm, 14 to 122 °F, and 5 to 95% RH
• The Bluetooth handle makes it more convenient to carry out your measurements and guarantees less cable clutter in your case - it transmits readings to the testo 440, from up to 65 feet away
• Practical button on the handle - for storing individual readings
• Versatile - the universal handle can be connected to all probe heads, so you can take care of more applications, and use less equipment