The testo 435 is the preferred instrument for today's professional air balancing contractors, commissioning experts and building energy management specialists. Configurable with an arsenal of probes you can easily pinpoint and troubleshoot problems with HVAC systems and see the results of corrections immediately. Quickly and easily verify system performance to provide real time BTU/hour readings.
APPLICATIONS

• Air Balancing Analysis
• Air flow traverses in ducts
• IAQ Diagnostics
• V/AC system performance testing
• U-Value/R-Value determination

KEY POINTS

• Accepts wide variety of wired/wireless probes for airflow, pressure, temp. %RH, CO & C02
• Performs timed and multi-point averaging as well as CFM, BTUh calculations
• Internal precision pressure sensor available
• Data logs up to 10,000 readings (optional)
• Integrates readings of up to 3 wireless temperature/humidity probes
  

Complete diagnostic kits available.

Thermal Anemometer Probe

Velocity Range:

0 to 4000 fpm

3-Function Probe (T/H/V)

Temperature Range:

-4 to 158 ºF

Humidity Range:

0 to 100 %RH

Velocity Range:

0 to 4000 fpm

Mini-Vane Velocity Probe

Velocity Range:

118 to 8000 fpm

IAQ Probe (T/H/CO2)

Temperature Range:

32 to 122 ºF

Humidity Range:

0 to 100 %RH

CO2:

0 to 10000 ppm

Differential Pressure Internal on 435-3 & 435-4

Pressure Range:

0 to 10"H20

Wireless Humidity Probe option on 435-2 & 435-4

Temperature Range:

-4 to 160 ºF

Humidity Range:

0 to 100 %RH

Additional Probes, Accessories and Replacement Parts

lAO Probe (CO2, humidity, temp)

PN

06321535

3 Function Probe (temp, RH & velocity)

PN

06351535

CO Probe 0-500 ppm

PN

06321235

4" (100 MM) vane probe for 435

06359435

5/8" Telescopic Vane Velocity Probe

06359535

Hot-wire probe

06351025

Duct humidity / temperature probe

06369735

U-Value/R-Value probe*

06141635

* Requires a wireless temp or temp/RH probe

Wireless Probes and Accessories Note: For wireless upgrades of a 435, order a wireless module, if your analyzer does not have one. Then order a wireless handle and a wireless probe head. All wireless probe handles come with a K-type thermocouple socket.

Wireless Module (USA / Canada)

PN

05540190

Wireless Handle

PN

05540191

Wireless Humidity probe (2.0%) head

PN

06369736

Wireless temp/penetration probe head

PN

06020293

Wireless temp/surface probe head

PN

06020394

(NOTE: model 435-1 does not display humidity from a wireless humidity probe)

The 416 is the ideal instrument for in-duct airflow measurements because the small diameter «5/8") rotating vane probe permits easy access and very accurate readings. The mini-vane requires no air density corrections regardless of the temperature, pressure, or humidity. Internal functions make it both quick and easy to perform multi-pass traverses (which provide the most accurate flow profiles).
KEY POINTS

• Small probe provides easy duct access
• No air density corrections required
• Easy fiow traverses
• 30" telescoping probe handle included
• Calculates to CFM readings
• Large back-lit display
• HOLD/min/max functions for easy review

Ordering Information                  

The large-vane 417 allows for easy, air flow & velocity measurements from registers and grills. The 4" dia. rotating vane provides stable and accurate flow measurements from an
all-in-one instrument.
KEY POINTS

• Highly accurate airflow measurement (± 1.5% of rdg)
• Flow direction indication in display
• Measure velocity, volume flow (CFM) and ºF or ºC.
• Multi-point or timed-mean averaging
• HOLD/Min/Max functions for fast - easy review

TECHNICAL DATA Vane Head:

Velocity

50 to 4000 fpm (± 1 .5% of rdg)

Volume Flow:

Temperature:

Ordering Information                  

The 425 anemometer provides extremely fast response to air flow conditions in a duct or at a register. A hot-wire sensor employs extremely accurate NTC technology which permits reading in low­flow applications. An extremely small measuring head is mounted on a telescopic handle to permit access hard-to-reach installations.
KEY POINTS

• Flow, volume flow (CFM) and temperature measurements
• Multi-point and timed mean calculations
• HOLD/Min/Max make for fast easy data review
• Clear backlit display
• TopSafe protective case (optional)

TECHNICAL DATA Thermal Anemometer Head:

Velocity:

0 to 4000 fpm {±(6 fpm +5% of rdg.)}

Temperature: -4 to 160 ºF

Ordering Information

425

PN 400563 4251

Note: Thermal and pressure based anemometers need density correction for exact readings.

Testo's 512 digital manometers are multi-functional pressure measurement meters that allow you to perform system diagnostic tests with a single meter including total external static pressure (TESP) , differential pressure, manifold pressures, duct velocities and volumetric airflow with a Pitot tube,
KEY POINTS

• Complete with hose and Pitot tube for velocity analysis
• Air density compensation integrated
• Optional TopSafe protects from impact, dust and water
• Simultaneous velocity and pressure measurements in ventilation systems
• Pressure drops across fans, filters, etc,
• Building pressure and depressurization tests (512-1 only)
• Units: kPa, hPa, PA, mm H20, mm Hg, PSI, in H20, in Hg

TECHNICAL DATA

512-1

Pressure:

±1,0" H2O

Velocity:

o to 4,000 fpm

512-2

Pressure:

±80,0" H2O

Velocity:

o to 15,000 fpm

Ordering Information

512-1

PN 400563 5121

512-2

PN 400563 5122

Related Products:
410 - Vane Anemometer
510 - Digital Manometer

The 410 Pocket PRO is a handy tool to check then balance airflows to eliminate air stratification and drafts and to determine if IAQ falls within acceptable comfort guidelines
KEY POINTS

• Integrated 1.25" vane
• Timed average calculation
• HOLD/MAX/MIN

TECHNICAL DATA

Velocity

Range:

80 to 4000 fpm

Resolution:

Accuracy:

± (40 fpm + 2% of rdg.)

Units:

m/s, km/h, fpm, mph, knots, windchill (ºC/°F), Beaufort

Temperature

Range:

14 to 122 ºF

Resolution:

Accuracy:

± 0.9 ºF

Units:

ºC/ºF

Humidity (testo 410-2 only)

Range:

0 to 100 %rH

Resolution: 0.1 %rH

Accuracy:

± 2.5 %rH (5 to 95 %rH)

Units:

%rH, wet bulb, dewpoint

Operating

temp.:

14 to 122 ºF

Batteries:

(2 x AAA Alkaline)

Battery Life: (without backlight)

testo 410-1 :

testo 410-2:

Dimensions:

Ordering Information

410-1

PN 05604101

410-2

PN 0560 4102

APPLICATIONS

• Ambient indoor air quality spot checks and long-term evaluations
• Air quality measurements in ventilation ducts

KEY POINTS

• No maintenance, dual channel NDIR sensor
• Snapshot or long-term measurements
• Printing capabilities
• TopSafe protective case (optional)

TECHNICAL DATA

C02 Range: 0 to 10,000 ppm

Related Products: Pocket PROs

606

Thermohygrometer

540

Light Meter

460

RPM Meter

Ordering Information

535

PN 05605350

Testo's digital thermometers are ideal for measuring temperatures in a wide range of applications. Flexibility in use is offered with a large selection of air, surface and penetration/immersion probes available as wired or wireless options. Differential temperatures are provided by a unique dual port design in the testo 922.
APPLICATIONS

• Analysis of hydronic and forced air heating and cooling systems
• Monitoring industrial and process systems and equipment
• Refrigeration system inspection.

KEY POINTS

• Large backlit 2-line display
• Audible alarm (user adjustable)
• HOLD/Min/Max functions for easy review
• Printed output available
• Top Safe cover (optional) protects against dust, water and impact

TECHNICAL DATA Measuring Range:

Recommended Accessories

Printer with 7 rolls of paper

PN

Additional Probes (110)

Air probe NTC (-58 to 25rF, 4' cable)

PN

06131712

Pipe wrap probe NTC (-58 to 158°F)

PN

06134611

Immersion/penetration probe NTC (-58 to 302°F)

06131212

Additional Probes (922/925)

Air Probe - Type K

PN

06021793

Hi-temp spring-loaded probe

PN

06020693

Velcro pipe wrap probe (5" max dia.)

PN

06280020

Pipe clamp probe 2" (K type)

PN

06024592

Replacement TC clamp probe

PN

06020092

Immersion probe Type K

PN

06020593

Penetration probe Type K needle probe

PN

06280026