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testo 400 IAQ and comfort kit with data logger and tripod

testo 400 IAQ and comfort kit with tripod

0563 0402 01

testo 400 IAQ and comfort kit with tripod

testo 400 IAQ and comfort kit with tripod

0563 0402 01

Ideal kit for IAQ professionals, with a focus on indoor air quality and comfort level.

You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one CO₂ probe (wired), one turbulence probe and one globe thermometer Ø 150 mm (both with fixed cable). Use the measuring tripod to ensure standard-compliant positioning of the probes. In combination with the IAQ data logger, long-term measurements up to 2 weeks can be recorded, even without the IAQ measuring instrument.

testo 400 universal IAQ instrument, silicone hoses, mains unit with USB cable, calibration protocol, instruction manual (0560 0400)
CO₂ probe including temperature and humidity sensor (0632 1552) (consisting of CO₂ probe head and cable handle (cable length 1.4 m); table stand and calibration protocol.

Please do not use the probe in condensing atmospheres. For continuous application in high-humidity ranges
> 80% RH at ≤ 30 °C for > 12 h
> 60% RH at > 30 °C for > 12 h
please contact Testo Service or contact us via the Testo website.
Turbulence probe with fixed cable and calibration protocol (0628 0152)
Globe thermometer (Ø 150 mm, TC type K) with fixed cable (0602 0743)
IAQ data logger for long-term measurements (0577 0400)
Measuring tripod for comfort level measurements, consisting of a folding stand, mounting rod, handheld instrument holder, 4 x probe mounts, including bag (0554 1591)
Transport case for IAQ and comfort level measurements (0516 2400)

testo 400 – universal IAQ instrument

: 0560 0400 01

For the measurement of radiant heat according to ISO 7243, ISO 7726, DIN EN 27726 and DIN 33403

: 0602 0743

IAQ data logger for long-term measurements

: 0577 0400

Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag

: 0554 1591

Transport case for IAQ and comfort level measurements

: 0516 2400

testo 400 – universal IAQ instrument

0560 0400 01

Temperature - NTC

Measuring range	-40 to +150 °C
Accuracy	±0.5 % of mv ±1 Digit (Remaining Range) ±0.4 °C ±1 Digit (+75 to +99.9 °C) ±0.2 °C ±1 Digit (-25 to +74.9 °C) ±0.4 °C ±1 Digit (-40 to -25.1 °C)
Resolution	0.1 °C

Temperature - TC Type K (NiCr-Ni)

Measuring range	-200 to +1370 °C
Accuracy	±(0.3 °C + 0.1 % of mv) ±1 Digit
Resolution	0.1 °C

Differential pressure (internal sensor) - Piezoresistive

Measuring range	0 to +200 hPa
Accuracy	±(0.1 hPa + 1.5 % of mv) ±1 Digit (25.001 to 200 hPa) ±(0.3 Pa + 1 % of mv) ±1 Digit (0 to 25 hPa)
Resolution	0.001 hPa

Absolute Pressure (internal sensor and external probe)

Measuring range	700 to 1100 hPa
Accuracy	±3 hPa
Resolution	0.1 hPa

General technical data

Weight	510 g (instrument)
Dimensions	210 x 95 x 39 mm ((LxWxH))
Operating temperature	-5 to +45 °C
Product-/housing material	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
Memory	2 GB; 1,000,000 measuring values
Storage temperature	-20 to +60 °C

For the measurement of radiant heat according to ISO 7243, ISO 7726, DIN EN 27726 and DIN 33403

0602 0743

Temperature - TC Type K (NiCr-Ni)

Measuring range	0 to +120 °C
Accuracy	Class 1 ¹⁾
1) According to standard EN 60584-1, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

General technical data

Weight	385 g
Dimensions	250 x 150 x 150 mm
Cable length	1.4 m
Emissivity	0,95
Probe head diameter	150 mm
Product colour	Black

IAQ data logger for long-term measurements

0577 0400

Temperature - NTC

Measuring range	-40 to +150 °C
Accuracy	±0.5 % of mv ±1 Digit (Remaining Range) ±0.4 °C ±1 Digit (+75 to +99.9 °C) ±0.2 °C ±1 Digit (-25 to +74.9 °C) ±0.4 °C ±1 Digit (-40 to -25.1 °C)
Resolution	0.1 °C

Temperature - TC Type K (NiCr-Ni)

Measuring range	-200 to +1370 °C
Accuracy	±(0.3 °C + 0.1 % of mv) ±1 Digit
Resolution	0.1 °C

General technical data

Storage temperature	-20 to +60 °C
Weight	162 g
Dimensions	136 x 89 x 39 mm (LxWxH)
Operating temperature	-5 to +45 °C
Product-/housing material	Plastic
Protection class	IP20
Product colour	Black
Connectable probes	4 x digital probe with fixed cable or NTC temperature probe with fixed cable (via Testo Universal Connector - TUC); 2 x temperature probe TC type K with fixed cable
Cable length	1 m
Power supply	External power supply via mains unit
Interface	USB
Memory	360,000 measuring values; 1.5 MB
*TUC connection (Testo Universal Connector): For the connection of fixed cable digital probes and NTC probes.

Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag

0554 1591

General technical data

Weight	5100 g
Dimensions	730 x 220 x 245 mm ((LxWxH))
Product colour	Black

Transport case for IAQ and comfort level measurements

0516 2400

General technical data

Weight	3250 g
Dimensions	520 x 410 x 210 mm LxWxH
Product-/housing material	Plastic
Product colour	Black

Comfort probes

Turbulence probe (digital), wired: for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55 – measuring range 0 to +5 m/s, 0 to +50 °C

:
0628 0152

Comfort probes

CO2 probe (digital) with Bluetooth® including temperature and humidity sensor

CO₂ probe (digital) with Bluetooth^® including temperature and humidity sensor: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1551

Comfort probes

Lux probe (digital) for measuring illuminance, wired

Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux

:
0635 0551

Comfort probes

CO2 probe (digital) including temperature and humidity sensor, wired

CO₂ probe (digital) including temperature and humidity sensor, wired: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1552

Comfort probes

CO2 probe head including temperature and humidity sensor

CO₂ probe head including temperature and humidity sensor: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1550

Comfort probes

CO probe (digital) with Bluetooth^®: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

:
0632 1271

Comfort probes

CO probe head: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 500 ppm

:
0632 1270

Comfort probes

CO probe (digital), wired: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

:
0632 1272

Comfort probes

For the measurement of radiant heat according to ISO 7243, ISO 7726, DIN EN 27726 and DIN 33403

:
0602 0743

Humidity probes

Humidity/temperature probe (digital) with Bluetooth^®: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9731

Humidity probes

Humidity/temperature probe (digital), wired: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9732

Humidity probes

Humidity/temperature probe head: for attachment to universal Bluetooth^® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9730

Humidity probes

High-precision humidity/temperature probe (digital) with Bluetooth^®: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9771

Humidity probes

High-precision humidity/temperature probe (digital), wired: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9772

Humidity probes

High-precision humidity/temperature probe head: for attachment to a universal Bluetooth^® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9770

Humidity probes

Robust humidity/temperature probe (digital) for temperatures up to +180 °C, wired: for measurements in industrial exhaust air, in bulk materials and in climatic test cabinets – accuracy ±2% RH (2.1 to 98% RH) / ±0.4 °C (0.1 to +50 °C), measuring range 0 to 100% RH / -20 to +180 °C

:
0636 9775

Humidity probes

testo 605i - thermohygrometer operated via smartphone

:
0560 2605 02

Pitot tubes

Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity

:
0635 2045

Pitot tubes

Stainless steel Pitot tube, length 350 mm, Ø 7 mm - for measuring flow velocity

:
0635 2145

Pitot tubes

Stainless steel Pitot tube, length 1000 mm, Ø 7 mm - for measuring flow velocity

:
0635 2345

Pitot tubes

For measuring flow velocities, e.g. in ventilation ducts or process air

:
0635 2043

Pitot tubes

For measuring flow velocities, e.g. in ventilation ducts or process air

:
0635 2143

Pitot tubes

For measuring flow velocities, e.g. in ventilation ducts or process air

:
0635 2243

Pressure probes

Measurement of gas flow and static pressure

:
0560 1510

Pressure probes

testo 549i - High-pressure gauge operated via smartphone

:
0560 2549 02

Temperature probes

Non-contact infrared measurement of surface temperature

:
0560 1805

Temperature probes

High-precision immersion/penetration probe (digital)

High-precision immersion/penetration probe (Pt100 temperature sensor, digital) for temperature measurements in liquids and pastes – measuring range -80 to +300 °C, accuracy up to ±0.05 °C

:
0618 0275

Temperature probes

Immersion/penetration probe (digital) with Pt100 temperature sensor: for temperature measurements in liquids and pastes – measuring range -100 to +400 °C, accuracy up to ±0.15 °C

:
0618 0073

Temperature probes

Glass-coated laboratory probe (Pt100 temperature sensor, digital) for temperature measurements in aggressive media – measuring range -50 to +400 °C

:
0618 7072

Temperature probes

Robust, fast-action air probe (digital)

:
0618 0072

Temperature probes

Flexible temperature probe (digital) with Pt100 temperature sensor: for temperature measurements in locations that are difficult to access and in liquids – measuring range -100 to +260 °C

:
0618 0071

Temperature probes

Pipe wrap probe with NTC temperature sensor for measurements on pipes (Ø 5-65 mm)

Pipe wrap probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 5-65 mm) – measuring range -60 to +130 °C

:
0615 5605

Temperature probes

Temperature probe with Velcro and NTC temperature sensor

Temperature probe with Velcro (NTC temperature sensor) for measuring the surface temperature of pipes – measuring range -50 to +70 °C

:
0615 4611

Temperature probes

Waterproof immersion/penetration probe with NTC temperature sensor

Waterproof immersion/penetration probe (NTC temperature sensor) for temperature measurements in liquids and semi-solid media – measuring range -50 to +150 °C, accuracy ±0.2 °C (-25 to +74.9 °C)

:
0615 1212

Temperature probes

Robust air probe with NTC temperature sensor

Robust air probe (NTC temperature sensor) with a short response time, for measuring air temperature – measuring range -50 to +125 °C, accuracy ±0.2 °C (-25 to +80 °C)

:
0615 1712

Temperature probes

Clamp probe with NTC temperature sensor for measurements on pipes (Ø 6-35 mm)

Clamp probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 6-35 mm) – measuring range -40 to +125 °C

:
0615 5505

Temperature probes

Thermocouple type K

:
0602 1793

Temperature probes

Fast-action surface probe with sprung thermocouple strip

Fast response time (3 seconds) thanks to the thermocouple strip

:
0602 0393

Temperature probes

Fast-reaction paddle surface probe (TC type K) - Measuring range: - 0 to +300°C

:
0602 0193

Temperature probes

Efficient, waterproof surface probe with small measurement head

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:
0602 0693

Temperature probes

Fast response time (3 seconds) thanks to the thermocouple strip

:
0602 0993

Temperature probes

Magnetic probe (TC type K) - for surface temperatures

Thermocouple type K

:
0602 4792

Temperature probes

Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten

Self-adhesive thanks to a magnet: probe for measuring surface temperature on metal surfaces

:
0602 4892

Temperature probes

Waterproof surface probe with widened measurement tip

Extra-wide measuring tip for flat surfaces

:
0602 1993

Temperature probes

With Velcro: makes it easy to attach the surface probe to pipes with a diameter of up to 120 mm

:
0628 0020

Temperature probes

Pipe wrap probe for pipe diameter 5 to 65 mm

With clamping bracket: enables quick, easy attachment of the probe to pipes with a diameter of 5 to 65 mm

:
0602 4592

Temperature probes

Clamp probe (TC type K) for temperature measurements on pipes with Ø 15-25 mm – Measuring range -50 to +100°C, briefly up to +130°C

:
0602 4692

Temperature probes

Efficient and fast-action immersion probe, waterproof

Short response time of 2 seconds

:
0602 0593

Temperature probes

Fast-action, waterproof immersion/penetration probe

1.5 mm thin probe tip for fast temperature recording, 60 mm long probe shaft

:
0602 2693

Temperature probes

Immersion measuring tip with TC plug type K - for fast temperature measurements

:
0602 5792

Temperature probes

Immersion measurement tip, flexible, for measurements in air

Flexible immersion measuring tip (TC type K) - Measuring range: -40 to +1000°C

:
0602 5693

Temperature probes

Waterproof immersion/penetration probe, TC Type K

Thermocouple type K

:
0602 1293

Temperature probes

Flexible, low-mass immersion measurement tip

TC Type K temperature probe with flexible measuring tip, short response time and 2 m cable

:
0602 0493

Temperature probes

Wasserdichter Lebensmittelfühler aus Edelstahl (IP65)

Waterproof stainless steel food probe (TC type K) - measuring range: -60 to +400°C

:
0602 2292

Temperature probes

Thermocouple with TC adapter, flexible, 800 mm long

Flexible thermoelectric couple (TC type K, glass fibre) – Measuring range: -50 to +400°C

:
0602 0644

Temperature probes

Thermocouple with TC adapter, flexible, length 1500 mm

Flexible thermoelectric couple (TC type K, glass fibre) – measuring range -50 to +400°C

:
0602 0645

Temperature probes

Thermocouple with TC adapter, flexible, 1500 mm long, PTFE

Flexible thermoelectric couple (TC type K, PTFE) – measuring range -50 to +250°C

:
0602 0646

Temperature probes

testo 115i - Clamp thermometer operated via smartphone

:
0560 2115 02

Temperature probes

testo 915i - Thermometer with air probe (TC type K) and smartphone operation

:
0563 3915

Velocity

Hot wire probe (digital) with Bluetooth^®including temperature and humidity sensor: for measurements in ventilation ducts – measuring range 0 to +30 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1571

Velocity

Hot wire probe (digital) including temperature and humidity sensor, wired: for measurements in ventilation ducts – measuring range 0 to +30 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1572

Velocity

Hot wire probe head including temperature and humidity sensor: for attachment to extendable telescope for air velocity probes with universal handle – measuring range 0 to +30 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1570

Velocity

Vane probe (Ø 16 mm, digital) with Bluetooth® including temperature sensor: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9571

Velocity

Vane probe (Ø 16 mm, digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9572

Velocity

16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9570

Velocity

Hot wire probe (digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range 0 to 30 m/s, -20 to +70 °C

:
0635 1032

Velocity

Vane probe (Ø 16 mm, digital), wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s

:
0635 9532

Velocity

Fume cupboard probe (digital), wired: for measuring inflow speed and exhaust air volume flow in fume cupboards according to DIN EN 14175-3/-4 – measuring range 0 to 5 m/s, 0 to +50 °C

:
0635 1052

Velocity

High-precision vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at air outlets in cleanrooms and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9371

Velocity

High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at air outlets in cleanrooms, as well as at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9372

Velocity

High-precision 100 mm vane probe head including temperature sensor: for attachment to extendable telescope for air velocity probes with universal handle or to a universal Bluetooth^® or cable handle – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9370

Velocity

Vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9431

Velocity

Vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9432

Velocity

100 mm vane probe head: for attachment to extendable telescope for air velocity probes with universal handle or to universal Bluetooth^® or cable handle – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9430

Velocity

For measuring volume flow, air velocity and temperature

:
0560 1405

Velocity

Measurement of air velocity, volume flow and temperature

:
0560 1410

Velocity

Hot ball probe (Ø 3 mm) - for flow and temperature

Hot ball probe (Ø 3 mm, digital), incl. temperature sensor, fixed cable: for measurement in non-directional air flows – measuring range 0 to 10 m/s, -20 to +70 °C

:
0635 1051

Velocity

Hot wire probe (Ø 7.5 mm, digital), incl. temperature sensor, fixed cable: for measurement in ventilation ducts, at plate outlets, ventilation grilles – measuring range 0 to 20 m/s, -20 to +70 °C

:
0635 1026

Velocity

Make sure you get the testo 420 volume flow hood for larger ceiling outlets and at the same time enjoy multiple maintenance benefits on HVAC systems. Because the flow hood with the removable measuring instrument is not only exceptionally light, it also guarantees accurate volume flow calculations at swirl outlets

:
0563 4200

Accessories

IAQ data logger for long-term measurements

:
0577 0400

Accessories

Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag

:
0554 1591

Accessories

Transport case for air flow measurements

:
0516 1400

Accessories

Transport case for IAQ and comfort level measurements

:
0516 2400

Accessories

Universal cable handle for connecting probe heads

Cable handle for connecting probe heads: transmits readings via cable

:
0554 2222

Accessories

Universal Bluetooth® handle for connecting probe heads

Bluetooth^® handle for connecting probe heads: transmits readings conveniently via Bluetooth

:
0554 1111

Accessories

USB mains unit, including cable

:
0554 1106

Accessories

Connection hose, silicone - max. load capacity up to 700 hPa (mbar)

:
0554 0440

Accessories

Connection hose silicone-free for differential pressure measurement, length 5 m, load up to maximum 700 hPa, (mbar)

:
0554 0453

Accessories

Free download: testo DataControl PC software

:
0501 4000

Accessories

Measuring tripod for flow measurements, for standard-compliant and secure positioning of probes

:
0554 1592

Accessories

testovent 417 volume flow straightener set

Convenient, quick volume flow measurement

:
0554 4173

Accessories

testo 318 - Endoscope

:
0563 3185

Certificates

ISO pressure calibration certificate; with 5 measuring points distributed over the measuring range; accuracy > 0.6 % of f.v.

:
0520 0005

Certificates

ISO pressure calibration certificate; with 5 measuring points distributed over the measuring range, accuracy 0.1 to 0.6 % of f.v.

:
0520 0025

Certificates

DAkkS pressure calibration certificate; with 5 measuring points distributed over the measuring range, accuracy > 0.6 % of f.v.

:
0520 0225

Certificates

ISO temperature calibration certificate for air/immersion probes; with 2 measuring points: 0 / +60 °C

:
0520 0042

Certificates

ISO temperature calibration certificate for air/immersion probes; with 1 measuring point: 0 °C

:
0520 0062

Certificates

ISO temperature calibration certificate for air/immersion probes; with 1 measuring point: +60 °C

:
0520 0063

IAQ measurements in the field of air conditioning and ventilation

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, reports, versatile combination options with IAQ probes

IAQ measurements in the field of air conditioning and ventilation

Custom-combine your Testo IAQ measuring instrument with IAQ probes and accessories for your application.

With the right products, you can handle all kinds of IAQ applications:

Air flow measurements: Flow measurements in ducts, at outlets and on filters as per EN ISO 12599 and ASHRAE 111
Comfort level measurements: Measurement of indoor air quality or turbulence as per EN ISO 7730 and ASHRAE 55, NET measurement as per DIN 33403, PMV/PPD as per EN ISO 7730 and ASHRAE 55, WBGT measurement as per DIN 33403 and EN ISO 7243
Measurements in laboratories and cleanrooms: Flow measurements in fume cupboards as per DIN EN 14175-3/-4, differential pressure measurements and laminar flow measurements in cleanrooms, humidity measurements in cleanrooms

Datenblatt testo 400 IAQ Datenlogger

Instruction manual testo 400(pdf, 5.1 MB)
EU declaration of conformity testo 400 (07/2025 …)(pdf, 54.8 kB)