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The testo 435-4 multifunction instrument allows you to carry out all the measurements that are necessary to check and adjust ventilation and air conditioning systems and assess the quality of the indoor air. The 435-4 accepts a wide variety of probes to measure and record airflow, humidity, temperature and indoor air quality (IAQ) readings. With the included ComSoft Software this data can be organized by location, analyzed and reported.
Probe dependent menus and selectable user profiles ensure that the testo 435-4 multifunction meter is always ready to use. Easy set-up of user defined IAQ and airflow / duct profiles allow for fast measurement of many different tasks, and with a wide variety of probe choices available, the testo 435 is ready to handle a vast array of HVAC / IAQ applications. The superb data handling will keep your readings organized and ready however you need them, whether in a quick print out on-site or further anaylized and placed in to a report.
Testo 435-4 highlights:
Housing
ABS / TPE / Metal
Protection class
IP65
EU-/EG-guidelines
2004/108/EG
Warranty
2 years
Battery type
3 x AA 1.5 V
Battery life
200 h (typical vane measurement)
Display ligthing
Yes
Memory
10,000 measuring values
Storage temperature
-22° to 158 °F / -30 to +70 °C
Weight
15 oz. / 428 g
Dimensions
9 x 3 x 2 in. / 220 x 74 x 46 mm
Operating temperature
-4 to +122 °F / -20 to +50 °C
Measuring range
-50 To +150 ° C
Accuracy
± 0.2 ° C (-25 to +74.9 ° C) ± 0.4 ° C (-50 to -25.1 ° C) ± 0.4 ° C (+75 to +99.9 ° C ) ± 0.5% v. Mw. (remaining range)
Resolution
0.1 °C
-200 to +1370 °C
± 0.3 ° C (-60 to +60 ° C) ± (0.2 ° C + 0.5% v. Mw.) (Remaining range)
-200 to +400 °C
± 0.3 ° C (-60 to +60 ° C) ± (0.2 ° C + 0.5%) (remaining range
0.1 °F / 0.1 °C
0 to +100 %rH
See probe data
0.1 %rH
0 to 800 InH₂O / 0 to 2000 hPa
0.0 InH₂O / 0.1 hPa
0 to 11811 fpm / 0 to 60 m/s
2.00 fpm (Ø 60 mm vane + Ø 100 mm vane) / 0.01 m/s (Ø 60 mm vane + Ø 100 mm vane)19.7 fpm (Ø 16 mm vane) / 0.1 m/s (Ø 16 mm vane)
Technical data
0 to 3937 fpm / 0 to 20 m/s
2.00 fpm / 0.01 m/s
0 to +10 InH₂O / 0 to +25 hPa
±0.01 InH₂O (0 to +1 InH₂O) / ±0.02 hPa (0 to +2 hPa)±1 % of mv (Remaining Range)
0.00 InH₂O / 0.01 hPa
Overload
80 InH₂O / 200 hPa
0 to 100000 Lux
1 Lux0.1 Hz
0 to 10000 ppm
1 ppm
Testo 435-4, PC software, USB Cable, batteries, and conformity certificate
Integrated differential pressure measurements for flow velocity
Optional probes for multiple measurements (Light, Turbulance, pressure, Temperature, Humidity, Co2,Velocity)
Backlit LCD for easy viewing
Built-in memory stores up to 10,000 measurements