testo 400 Comfort Kit - for comfort professionals in high performance buildings

testo 400 is the universal measuring instrument for all TAB / Commissioning and IAQ professionals, enabling them to measure, document and analyze all IAQ parameters with just one instrument.

Smart support through stored measurement menus and evaluation of measuring values according to the traffic light principle – for error-free measurements
Manage all the relevant customer data, including measuring points, directly in the instrument - work directly and efficiently on site
Complete and send measuring values with full documentation, including photos, comments and your own logo directly on site – get to the next job faster
Probe heads can be changed without restarting the instrument – easy handling with no lost time
Calibration of probes which is independent of the measuring instrument and adjustment function at up to six measuring points for zero-error display – fewer downtimes and high-precision measurements

As consultants, experts, technical service providers, or service technicians in the air conditioning and ventilation sector, the testo 400 therefore supports you in the truly smart performance of your measuring tasks. Relevant quality parameters in industrial production and manufacturing processes can also be reliably and accurately checked using the testo 400.

Temperature - NTC	Measuring range -40.0° to 302.0 °F / -40 to +150 °C
Accuracy ±0.5 % of mv ±1 Digit (Remaining Range) ±0.4 °F ±1 Digit (-13° to 166.8 °F) / ±0.2 °C ±1 Digit (-25 to +74.9 °C) ±0.7 °F ±1 Digit (-40° to -13.2 °F) / ±0.4 °C ±1 Digit (-40 to -25.1 °C) ±0.7 °F ±1 Digit (75° to 211.8 °F) / ±0.4 °C ±1 Digit (+75 to +99.9 °C)
Resolution 0 °F / 0.1 °C

Measuring range

-40.0° to 302.0 °F / -40 to +150 °C

Accuracy

±0.5 % of mv ±1 Digit (Remaining Range)

±0.4 °F ±1 Digit (-13° to 166.8 °F) / ±0.2 °C ±1 Digit (-25 to +74.9 °C)

±0.7 °F ±1 Digit (-40° to -13.2 °F) / ±0.4 °C ±1 Digit (-40 to -25.1 °C)

±0.7 °F ±1 Digit (75° to 211.8 °F) / ±0.4 °C ±1 Digit (+75 to +99.9 °C)

Resolution

0 °F / 0.1 °C

Temperature - Type K TC	Measuring range -328.0° to 2498.0 °F / -200 to +1370 °C
Accuracy ±(0.5 °F + 0.1 % of mv) ±1 Digit / ±(0.3 °C + 0.1 % of mv) ±1 Digit
Resolution 0.1 °F / 0.1 °C

Measuring range

-328.0° to 2498.0 °F / -200 to +1370 °C

Accuracy

±(0.5 °F + 0.1 % of mv) ±1 Digit / ±(0.3 °C + 0.1 % of mv) ±1 Digit

Resolution

0.1 °F / 0.1 °C

Differential pressure (internal sensor) - Piezoresistive	Measuring range 0 to +80 InH₂O / 0 to +200 hPa
Accuracy ±(0.0 InH₂O + 1.5 % of mv) ±1 Digit (10.000 to 80 InH₂O) / ±(0.1 hPa + 1.5 % of mv) ±1 Digit (25.001 to 200 hPa) ±(0.0 InH₂O + 1 % of mv) ±1 Digit (0 to 25 InH₂O) / ±(0.3 Pa + 1 % of mv) ±1 Digit (0 to 25 hPa)
Resolution 0.000 InH₂O / 0.001 hPa

Measuring range

0 to +80 InH₂O / 0 to +200 hPa

Accuracy

±(0.0 InH₂O + 1.5 % of mv) ±1 Digit (10.000 to 80 InH₂O) / ±(0.1 hPa + 1.5 % of mv) ±1 Digit (25.001 to 200 hPa)

±(0.0 InH₂O + 1 % of mv) ±1 Digit (0 to 25 InH₂O) / ±(0.3 Pa + 1 % of mv) ±1 Digit (0 to 25 hPa)

Resolution

0.000 InH₂O / 0.001 hPa

Absolute Pressure (internal sensor and external probe)	Measuring range 280 to 440 InH₂O / 700 to 1100 hPa
Accuracy ±1 InH₂O / ±3 hPa
Resolution 0.1 InH₂O / 0.1 hPa

Measuring range

280 to 440 InH₂O / 700 to 1100 hPa

Accuracy

±1 InH₂O / ±3 hPa

Resolution

0.1 InH₂O / 0.1 hPa

General technical data	Weight 17.99 oz. (instrument) / 510 g (instrument)
Dimensions 8.3 x 3.7 x 1.5 in. ((LxWxH)) / 210 x 95 x 39 mm ((LxWxH))
Operating temperature 23.0° to 113.0 °F / -5 to +45 °C
Housing Plastic
Protection class IP40
Connectable probes 4 x digital Bluetooth® probe or testo Smart Probe; 2 x digital probe with fixed cable or temperature probe NTC with fixed cable (via Testo Universal Connector - TUC); 2 x temperature probe TC type K with fixed cable
Product colour black/orange
Camera image size Main camera: 8.0 MP; Front camera: 5.0 MP
Battery life approx. 10 hrs continuous operation
Display type 5.0" touch display, HD 1280*720 pixels, IPS (160 k)
Power supply Rechargeable li-ion battery (5550 mAh)
Interface Bluetooth®; USB; WLAN
Memory 2 GB; 1,000,000 measuring values
Storage temperature -4.0° to 140.0 °F / -20 to +60 °C
*TUC connection (Testo Universal Connector): For the connection of fixed cable digital probes and NTC probes.

Weight

17.99 oz. (instrument) / 510 g (instrument)

Dimensions

8.3 x 3.7 x 1.5 in. ((LxWxH)) / 210 x 95 x 39 mm ((LxWxH))

Operating temperature

23.0° to 113.0 °F / -5 to +45 °C

Housing

Plastic

Protection class

IP40

Connectable probes

4 x digital Bluetooth® probe or testo Smart Probe; 2 x digital probe with fixed cable or temperature probe NTC with fixed cable (via Testo Universal Connector - TUC); 2 x temperature probe TC type K with fixed cable

Product colour

black/orange

Camera image size

Main camera: 8.0 MP; Front camera: 5.0 MP

Battery life

approx. 10 hrs continuous operation

Display type

5.0" touch display, HD 1280*720 pixels, IPS (160 k)

Power supply

Rechargeable li-ion battery (5550 mAh)

Interface

Bluetooth®; USB; WLAN

Memory

2 GB; 1,000,000 measuring values

Storage temperature

-4.0° to 140.0 °F / -20 to +60 °C

*TUC connection (Testo Universal Connector): For the connection of fixed cable digital probes and NTC probes.

General technical data	Weight 114.64 oz. / 3250 g
Dimensions 20.5 x 16.1 x 8.3 in. LxWxH / 520 x 410 x 210 mm LxWxH
Housing Plastic
Product colour Black

Weight

114.64 oz. / 3250 g

Dimensions

20.5 x 16.1 x 8.3 in. LxWxH / 520 x 410 x 210 mm LxWxH

Housing

Plastic

Product colour

Black

General technical data	Storage temperature -4° to 140 °F / -20 to +60 °C
Weight 8.8 oz. / 250 g
Dimensions 15.7 x 3.5 x 3.5 in. / 400 x 90 x 90 mm
Operating temperature 32° to 122 °F / 0 to +50 °C
Cable length 4.593 ft. / 1.4 m
Probe head diameter 32.283 in. / 820 mm
Product colour black/orange
Standards EN ISO 7730 / ASHRAE 55

Storage temperature

-4° to 140 °F / -20 to +60 °C

Weight

8.8 oz. / 250 g

Dimensions

15.7 x 3.5 x 3.5 in. / 400 x 90 x 90 mm

Operating temperature

32° to 122 °F / 0 to +50 °C

Cable length

4.593 ft. / 1.4 m

Probe head diameter

32.283 in. / 820 mm

Product colour

black/orange

Standards

EN ISO 7730 / ASHRAE 55

Temperature - NTC	Measuring range 32° to 122 °F / 0 to +50 °C
Accuracy ±0.9 °F / ±0.5 °C
Resolution 0.1 °F / 0.1 °C

Measuring range

32° to 122 °F / 0 to +50 °C

Accuracy

±0.9 °F / ±0.5 °C

Resolution

0.1 °F / 0.1 °C

Absolute Pressure	Measuring range +280 to +440 InH₂O / +700 to +1100 hPa
Accuracy ±1.2 InH₂O / ±3.0 hPa
Resolution 0.1 InH₂O / 0.1 hPa

Measuring range

+280 to +440 InH₂O / +700 to +1100 hPa

Accuracy

±1.2 InH₂O / ±3.0 hPa

Resolution

0.1 InH₂O / 0.1 hPa

Velocity - Hot wire anemometer	Measuring range 0 to 984 fpm / 0 to 5 m/s
Accuracy ±(5.91 fpm + 4 % of mv) / ±(0.03 m/s + 4 % of mv)
Resolution 1.97 fpm / 0.01 m/s

Measuring range

0 to 984 fpm / 0 to 5 m/s

Accuracy

±(5.91 fpm + 4 % of mv) / ±(0.03 m/s + 4 % of mv)

Resolution

1.97 fpm / 0.01 m/s

Light	Measuring range 0 to 9300 ftc 0 to 100000 Lux
Accuracy F1 = 6 % = V(Lambda) adjustment Class C according to DIN 5032-7 DIN 13032-1 Appendix B F2 = 5 % = cos-true evaluation
Resolution 0.1 Lux (< 10000 ) 1 Lux (> 10000 )

Measuring range

0 to 9300 ftc

0 to 100000 Lux

Accuracy

F1 = 6 % = V(Lambda) adjustment

Class C according to DIN 5032-7

DIN 13032-1 Appendix B

F2 = 5 % = cos-true evaluation

Resolution

0.1 Lux (< 10000 )

1 Lux (> 10000 )

General technical data	Storage temperature -4° to 122 °F / -20 to +50 °C
Weight 3.9 oz. / 110 g
Dimensions 4.3 x 2.2 x 0.9 in. / 110 x 55 x 22 mm
Operating temperature 32° to 122 °F / 0 to +50 °C
Cable length 4.593 ft. / 1.4 m
Product colour Black

Storage temperature

-4° to 122 °F / -20 to +50 °C

Weight

3.9 oz. / 110 g

Dimensions

4.3 x 2.2 x 0.9 in. / 110 x 55 x 22 mm

Operating temperature

32° to 122 °F / 0 to +50 °C

Cable length

4.593 ft. / 1.4 m

Product colour

Black

Temperature - NTC	Measuring range -4° to 158 °F / -20 to +70 °C
Accuracy ±0.9 °F / ±0.5 °C
Resolution 0.1 °F / 0.1 °C

Measuring range

-4° to 158 °F / -20 to +70 °C

Accuracy

±0.9 °F / ±0.5 °C

Resolution

0.1 °F / 0.1 °C

Humidity - Capacitive	Measuring range 0 to 100 %rH
Accuracy long-term stability: ±1 %RH / year ±0.03 %rF/K (k=1) ±2 %rH (5 to 90 %rH)
Resolution 0.1 %rH

Measuring range

0 to 100 %rH

Accuracy

long-term stability: ±1 %RH / year

±0.03 %rF/K (k=1)

±2 %rH (5 to 90 %rH)

Resolution

0.1 %rH

General technical data	Storage temperature -4° to 140 °F / -20 to +60 °C
Weight 5.8 oz. / 165 g
Dimensions 11.4 x 2.0 x 1.6 in. / 290 x 50 x 40 mm
Operating temperature 23° to 122 °F / -5 to +50 °C
Diameter probe shaft 0.472 in. / 12 mm
Length probe shaft 5.512 in. / 140 mm
Product colour black/orange
Battery type 4 x AA batteries
Battery life 140 h
Data transfer Bluetooth®

Storage temperature

-4° to 140 °F / -20 to +60 °C

Weight

5.8 oz. / 165 g

Dimensions

11.4 x 2.0 x 1.6 in. / 290 x 50 x 40 mm

Operating temperature

23° to 122 °F / -5 to +50 °C

Diameter probe shaft

0.472 in. / 12 mm

Length probe shaft

5.512 in. / 140 mm

Product colour

black/orange

Battery type

4 x AA batteries

Battery life

140 h

Data transfer

Bluetooth®

Air flow and IAQ measurements in the field of air conditioning and ventilation

Air flow measurements: Flow measurements in ducts, at outlets and on filters as per ASHRAE 111

High-precision, location-independent and built-in differential pressure sensor, smart and intuitive measurement programs for IAQ measurements in accordance with the standards, creation of documentation on site, e-mailing of reports, versatile combination options with IAQ probes

Measurements in laboratories and cleanrooms: Flow measurements in fume cupboards, differential pressure measurements and laminar flow measurements in cleanrooms, humidity measurements in cleanrooms

Comfort level measurements: Measurement of indoor air quality or turbulence as per ASHRAE 55, NET measurement as per DIN 33403, PMV/PPD as per ASHRAE 55

testo 400 Comfort Kit - for comfort professionals in high performance buildings

testo 400 Comfort Kit - for comfort professionals in high performance buildings

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