Testo 176, 174 Specifications

With the professional
Testo data loggers,
a new age begins for you

Committing to the future

Logger series
testo 174

Next Generation!

Logger series
testo 175

Logger series
testo 176

The new generation of data loggers –

into the future with USB connection and storage card

A high level of user-friendliness and absolute security characterize the new generation of Testo data loggers. With

the current range of a total of 13 data loggers, Testo offers the right solution for various applications. In addition to

the eleven new instruments from the testo 175 and testo 176 series , it also includes the two mini data loggers

testo 174T and testo 174H.

The testo 175 series consists of four compact data loggers for the measurement of temperature and humidity. The

testo 176 series contains seven data loggers which are especially suited to applications in demanding surroun-

dings, such as in laboratories. An absolute innovation in this series is the testo 176 P1, with which absolute pressu-

re can be measured and documented, in addition to temperature and humidity.

Safety

• Data security thanks to non-volatile memory – even when the batteries are

spent, the data are not lost

• Password protection prevents changes by unauthorized persons

• Anti-theft lock – with the help of a wall holder, the loggers can be perma-

nently attached and secured against theft with a padlock

• Robustness – three data loggers from the testo 176 series have a metal

housing which offers optimum protection from impact

User-friendliness

• Two standard interfaces (mini USB and SD card) allow easy programming

and readout of the loggers via direct connection to the PC

– an additional interface for the readout is not required

• Large display for non-problematic reading of measurement data –

even in badly lit rooms, thanks to backlighting at the press of a button

• Operating comfort thanks to one-button menu structure – a click on the

“Go” button and the recording of the measurement values begins

• Longer battery life due to improved energy management – the loggers

testo 176 record data without interruption for up to 8 years

• The large memory of the loggers testo 176 collects up to 2 million measu-

rement values – the logger needs to be read out considerable less often

Secure and simple –
an overview of the new data loggers testo 175 and testo 176:

All new data loggers from the series testo 175 and testo 176 have a

USB and an SD card interface, making readout of the data fast and

easy. The considerably higher memory capacity and the power supply

using conventional batteries are further plus points of the new produc-

ts. It goes without saying that the proven one-button menu structure,

which offers absolute operating convenience, has been retained in the

new generation of data loggers.

One-button menu structure

USB interface

SD card

The right logger software for every application

testo ComSoft Professional 4 – for demanding users

• The ComSoft Professional 4 offers analysis and presentation possibilities over and above the basic functions

• Many measurement sites and data loggers can be organized in a clear tree structure, for example

More information:

www.testo.com

Three software versions are available for programming and reading out the data loggers, as well as for the

analysis of the data. Depending on the requirement, Testo offers the right software solution. The testo

ComSoft Basic 5 with new graphic user interface offers all the basic functions of a standard logger soft-

ware. Independently of where the data loggers are used – the testo ComSoft Basic 5 facilitates the configu-

ration and readout of the instruments as well as the analysis of the data. User-friendliness and intuitive ope-

ration are paramount here. Requirements over and above this, such as the correlation of measurement data

which have beenrecorded at different sites, are optimally fulfilled by the testo ComSoft Professional 4. The

pharmaceutical industry makes very special demands, whose fulfilment is guaranteed by the testo ComSoft

CFR21 Part 11.

testo ComSoft Basic 5 – for easy operation and convenient analysis

• Graphic user interface guides the user step-by-step through the individual procedures

• Convenient export functions, e. g. for further processing of the data in Microsoft Excel, or the generation

of a PDF which can be made available to other users

• The testo ComSoft Basic 5 offers all the basic functions of a logger software

• Free download of the testo ComSoft Basic 5 with mandatory registration

CD ComSoft Basic 5, if free,
registration-mandatory download not
wanted

testo ComSoft CFR 21 Part 11 – specially for the requirements of the pharmaceutical industry

• The ComSoft CFR 21 Part 11 is a validation-capable software, and fulfils all the stipulations of the

FDA (Food and Drug Administration) in the framework of a closed system

• Conformity with the CFR guidelines is confirmed by an independent institute

Order no.: 0554 1704

Order no.: 0572 0580

Order no.: 0554 1705

testo 175 T2

Order no.: 0572 1752

testo 175 T1

Order no.: 0572 1751

testo 174H

Order no.: 0572 6560

Logger series testo 175
The compact ones...

Logger series testo 174
The small ones...

Technical data testo 174T

Sensor NTC

Channels 1 x internal

Measurement units °C, °F

Measuring range -30 to +70 °C

Accuracy ±0.5 °C

± 1 digit (-30 to +70 °C)

Resolution 0.1 °C

Battery life 500 days
(at +25 °C) at 15 min. meas. rate

Operating temperature -30 to +70 °C

Storage temperature -40 to +70 °C

Dimensions 60 x 38 x 18,5 mm

Battery type 2 x CR 2032 Lithium

Protection class IP 65

Meas. cycle 1 min - 24 h

Memory 16,000 readings

Software ComSoft Basic 5

ComSoft Professional 4

1-channel temperature logger
with internal sensor (NTC)

2-channel temperature and
humidity data logger with inter­nal sensor (NTC/capacitive
humidity sensor)

1-channel temperature logger
with internal sensor (NTC)

2-channel temperature data
logger with internal (NTC), and
external sensor connection
(NTC)

· Reliable temperature measure-

ment for the monitoring of cold
chains and sensitive products in
stroage and transport

· Easy readout of the data, and

transfer to a PC via Testo USB
interface

· Low-budget temperature and

humidity monitoring for living,
work, and storage rooms

· Easy readout of the data, and

transfer to a PC via Testo USB
interface

· Professional temperature moni-

toring for refrigerated and deep­freeze rooms

· Compact data logger for long-

term monitoring of temperature,
e. g. during transport of goods

· Simultaneous monitoring of air

and product temperature

· External probe input for easy

connection, e. g. of a permitted
food probe for measuring the
core temperature of the goods

testo 174H

NTC/ capacitive humidity sensor

2 x internal

°C, °F, %rF, %RH

-20 to +70 °C internal
0 to 100 %RH

±0.5 °C (-20 to +70 °C)
±3 %RH (2 to 98 %RH)
+0.03 %RH/K

0.1 °C, 0.1 %RH

1 year
at 15 min. meas. rate

-20 to +70 °C

-40 to +70 °C

60 x 38 x 18,5 mm

2 x CR 2032 Lithium

IP 20

1 min - 24 h

16,000 readings

ComSoft Basic 5
ComSoft Professional 4

testo 175 T1

NTC

1 x internal

°C, °F

-35 to +55 °C internal

±0.5 °C
(-35 to +55 °C)

0.1 °C

3 years
at 15 min. meas. rate

-35 to +55 °C

-35 to +55 °C

89 x 53 x 27 mm

3 x AlMn Type AAA or Energizer

IP 65

10 sec - 24 h

1 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 175 T2

NTC

1 x internal, 1 x external

°C, °F

-35 to +55 °C internal

-40 to +120 °C external

±0.5 °C
(-35 to +55 °C)

0.1 °C

3 years
at 15 min. meas. rate

-35 to +55 °C

-35 to +55 °C

89 x 53 x 27 mm

3 x AlMn Type AAA or Energizer

IP 65

10 sec - 24 h

1 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 174T

Order no.: 0572 1560

testo 174T

testo 174H testo 175 T2testo 175 T1

testo 176 T1

Order no.: 0572 1761

testo 176 T1

Pt100 class A

1 x internal

°C, °F

-35 to +70 °C

±0.2 °C (-35 to +70 °C)

0,01 °C

8 years
at 15 min. meas. rate

-35 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 68

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 175 H1

Order no.: 0572 1754

testo 175 T3

Order no.: 0572 1753

2-channel temperature and
humidity data logger with exter­nal humidity sensor
(NTC/capacitive humidity sen­sor)

1-channel temperature logger in
metal housing with highly
accurate internal sensor
(Pt100)

2-channel temperature logger
with connections for highly
accurate external sensor
(Pt100)

· Parallel monitoring and recor-

ding of two temperature measu­rement sites

· Easy monitoring and documen-

tation, e. g. of the flow and
return temperature of a heating
system

· Professional long-term monito-

ring of temperature and humidi­ty in work and storage rooms

· Fast reaction time thanks to

external humidity probe

· Highly accurate temperature

measurementt under extreme
conditions

· Robust metal housing protects

from mechanical influences
such as impact

· Highly accurate temperature

measurement in the food sec­tor and in laboratories

· Temperature monitoring e. g. in

refrigerators with highly accura­te Pt100 probes

testo 175 T3

TC (Types T and K)

2 x external

°C, °F

-50 to +400 °C (Type T)

-50 to +1000 °C (Type K)

±0.5 °C (-50 to +70 °C)
±0.7 % of mv (+70.1 to +1000 °C)

0.1 °C

3 years
at 15 min. meas. rate

-20 to +55 °C

-20 to +55 °C

89 x 53 x 27 mm

3 x AlMn Type AAA or Energizer

IP 65

10 sec - 24 h

1 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 175 H1

NTC/ capacitive humidity sensor

2 x internal (stump)

°C, °F, %rF, %RH, td, g/m

3

-20 to +55 °C

-40 to +50 °C

td

0 to 100 %RH

±2 %RH (2 to 98 %RH)
+0.03 %RH/K
±0.4 °C (-20 to +55 °C)

0.1 °C, 1 %RH

3 years
at 15 min. meas. rate

-20 to +55 °C

-20 to +55 °C

149 x 53 x 27 mm

3 x AlMn Type AAA or Energizer

IP 54

10 sec - 24 h

1 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

2-channel temperature data
logger with external sensor
connections
(TC Type T und Type K)

testo 175 T3 testo 175 H1

Logger series testo 176
The versatile ones...

testo 176 T3

testo 176 T2

testo 176 T1

4-channel temperature d ata
logger in metal housing with
external sensor connection
(TC Type T, Type K and Type J)

· Parallel temperature measure-

ment at up to four measurement
sites using different connectable
thermocouple probes for different
applications

· Robust metal housing protects

from mechanical influences such
as impact

testo 176 T3

Order no.: 0572 1763

testo 176 T3

TC (Types T , K and J)

4 x external

°C, °F

-200 to +400 °C (Type T)

-195 to +1000 °C (Type K)

-100 to +750 °C (Type J)

±1% of mv (-200 to -100.1 °C)
±0.3 °C (-100 to +70 °C)
±0.5% of mv (+70.1 to +1000 °C)

0.1 °C

8 years
at 15 min. meas. rate

-20 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 54

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 176 T2

Order no.: 0572 1762

testo 176 T2

Pt100 class A

2 x external

°C, °F

-50 to +400 °C

±0.2 °C (-50 to +200 °C)
±0.3 °C (+200.1 to +400 °C)

0,01 °C

8 years
at 15 min. meas. rate

-35 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 65

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 176 T4

Order no.: 0572 1764

testo 176 T4

TC (Types T , K and J)

4 x external

°C, °F

-200 to +400 °C (Type T)

-195 to +1000 °C (Type K)

-100 to +750 °C (Type J)

±1% of reading (-200 to 100.1 °C)
±0.3 °C (-100 to +70 °C)
±0.5% of m.v. (+70.1 to +1000 °C)

0.1 °C

8 years
at 15 min. meas. rate

-20 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 54

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 176 T4

testo 176 P1

testo 176 H2

testo 176 H1

4-channel temperature data logger
with external sensor connections
(TC Type T, Type K and Type J)

4-channel temperature and
humidity data logger with external
sensor connections
(NTC/capacitive humidity sensor)

4-channel temperature and humidity
data logger in metal housing with
external sensor connections
(NTC/capacitive humidity sensor)

5-channel pressure, temperature and humidity data
logger with internem sensor (absolute pressure)
and external sensor connections (NTC/capacitive
humidity sensor)

· Highly accurate and secure documentation of the

ambient conditions e. g. in a laboratory

· Internal absolute pressure sensor and connection

possibilities for two external humidity probes

· Parallel temperature measurement at

up to four measurement sites using
different connectable thermocouple
probes for different applications

· Easy monitoring and documentation,

e. g. of the flow and return temperatu­re of an underfloor heating system at
up to four measurement sites simulta­neously

· Parallel temperature and humidity

measurement

· Different connectable humidity and

temperature probes, e. g. for humi­dity monitoring in storerooms

· Parallel temperature and humidity

measurement with various connec­table humidiy and temperature pro­bes for different applications

· Robust metal housing protects from

mechanical influences such as impact

testo 176 H2

Order no.: 0572 1766

testo 176 H2

NTC/ capacitive humidity sensor

2 probes, 4 external channels

°C, °F, %rF, %RH, td, g/m3, WB

-20 to +70 °C

-40 to +70 °C

td

0 to 100 %RH

±0.2 °C (-20 to +70 °C)
±0.4 °C (remaining meas. range)

0.1 °C, 0.1 %RH

8 years
at 15 min. meas. rate

-20 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 65

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 176 P1

NTC/ capacitive humidity sensor/ absolute pressure sensor

1 x internal, 2 probes, 4 external channels

°C , °F, %rF, %RH, td, g/m3, hPa, mbar, in Hg, in H20, psi

-20 to +70 °C

-40 to +70 °C

td

0 to 100 %RH / 600 mbar to 1100 mbar

±0.2 °C (-20 to +70 °C)
±0.4 °C (remaining measuring range)
±3 mbar (0 to 50 °C)

0.1 °C, 0.1 %RH, 1 mbar

8 years
at 15 min. meas. rate

-20 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 54

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

testo 176 P2

Order no.: 0572 1767

testo 176 H1

Order no.: 0572 1765

testo 176 H1

NTC/ capacitive humidity sensor

2 probes, 4 external channels

°C, °F, %rF, %RH, td, g/m3, WB

-20 to +70 °C

-40 to +70 °C

td

0 to 100 %RH

±0.2 °C (-20 to +70 °C)
±0.4 °C (rest of measuring range)

0.1 °C, 0.1 %RH

8 years
at 15 min. meas. rate

-20 to +70 °C

-40 to +85 °C

103 x 63 x 33 mm

1 x Lithium (TLH-5903)

IP 65

1 sec - 24 h

2 mio. measurement values

ComSoft Basic 5
ComSoft Professional 4
ComSoft CFR 21 Part 11

External probes –
the right accessories for every application

The specified tightness class for data loggers is fulfilled with these probes
Probe tested according to EN 12830 for suitability for the areas of transport and storage
without protective glass
Long-term measuring range to +125 °C, briefly to +150 °C or +140 °C (2 minutes)
Acc. to norm 60584-2, 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)

*

**

***

****

Probe Meas. range Accuracy t99 Order no.

NTC

Stump probe, IP 54 -20 to +70 °C ±0.2 °C (-20 to +40 °C) 15 sec 0628 7510

±0.4 °C (+40.1 to +70 °C)

Stationary probe -30 to +90 °C ±0.2 °C (0 to +70 °C) 190 sec 0628 7503*
with aluminium sleeve, IP 65 ±0.5 °C (remaining meas. range)

Stainless steel NTC food probe -50 to +150 °C

***

±0.5% of m.v. (+100 to +150 °C)

8 sec 0613 2211*

(IP 65) with PUR cable ±0.2 °C (-25 to +74.9 °C)

±0.4 °C (rem. meas. range)

Accurate immersion/penetration probe -35 to +80 °C ±0.2 °C (-25 to +74.9 °C) 5 sec 0628 0006*
Cable length 1.5 m, IP 67 ±0.4 °C (remaining meas. range)

Waterproof NTC -50 to +150 °C

±0.5% of reading (+100 to +150 °C)

10 sec 0613 1212

immersion/penetration probe ±0.2 °C (-25 to +74.9 °C)

±0.4 °C (rem. meas. range)

Thermocouple

Stationary probe with stainless -50 to +205 °C Class 2 **** 20 sec 0628 7533
steel sleeve, TC Type K

Pipe wrap probe with Velcro tape for -50 to +120 °C Class 1**** 90 sec 0628 0020
temperature measurements on pipes
diameter to max. 120 mm,
Tmax. +120 °C, TC Type K

Pipe wrap probe for pipe diameters -60 to +130 °C Class 2**** 5 sec 0602 4592
5 to 65 mm, with exchangeable
measuring head, measuring
range briefly up to +280 °C, TC type K

Magnet probe, adhesion approx.10 N, -50 to +400 °C Class 2**** 0602 4892
with magnets, for higher
temperatures, for measurements
on metal surfaces, TC type K

Thermocouple with TC plug -50 to +400 °C Class 2**** 5 sec 0602 0645
flexible, length 1500 mm,
fibreglass, TC Type K

Superfast needle probe -50 to +250 °C ± 0.2 °C (-20 to +70 °C) Cla ss 1 2 s ec 0628 0030
for monitoring (remaining measuring range)****
cooking times in ovens, TC Type T

Pt100

Robust Pt100 -50 to +400 °C Class A (-50 to +300 °C), 10 sec 0609 2272*
Stainless steel food probe (IP 65) Class B (rem. meas. range)

Robust, waterproof Pt100 -50 to +400 °C Class A (-50 to +300 °C), 12 sec 0609 1273*
immersion/penetration probe Class B (rem. meas. range)

Laboratory probe Pt100, glass-coated, -50 to +400 °C Class A (-50 to +300 °C), 45 sec 0609 7072*
Glass tube (Duran 50) exchangeable, Class B (rem. meas. range) 12 sec **
resistant to corrosive media

Humidity

Humidity / temperature probe 12 mm

-20 to +70 °C, ±0.3 °C, ±2 %RH (2 to 98 %RH) 0572 6172
0 to +100 %RH

Humidity / temperature probe 4 mm 0 to +40 °C, ±0.3 °C, ±2 %RH (2 to 98 %RH) 0572 6174

0 to +100 %RH

Complete overview of probes:

www.testo.com/datenloggers

Ordering data

Designation Order no.

Data loggers

testo 174T 1-channel temperature logger with internal sensor (NTC) 0572 1560

testo 174H 2-channel temperature and humidity data logger with internal sensor (NTC/capacitive humidity sensor) 0572 6560

testo 175 T1 1-channel temperature logger with internal sensor (NTC) 0572 1751

testo 175 T2 2-channel temperature data logger with internal (NTC), and external sensor connection (NTC) 0572 1752

testo 175 T3 2-channel temperature data logger with external sensor connection (TC Type T and Type K) 0572 1753

testo 175 H1 2-channel temperature and humidity data logger with external sensor (NTC/capacitive humidity sensor) 0572 1754

testo 176 T1 1-channel temperature logger in metal housing with highly accurate internal sensor (Pt100) 0572 1761

testo 176 T2 2-channel temperature logger with connections for highly accurate external sensor (Pt100) 0572 1762

testo 176 T3 4-channel temperature data logger in metal housing with external sensor connection (TC Type T, Type K and Type J) 0572 1763

testo 176 T4 4-channel temperature data logger with external sensor connections (TC Type T, Type K and Type J) 0572 1764

testo 176 H1 4-channel temperature and humidity data logger with external sensor connections (NTC/capacitive humidity sensor) 0572 1765

testo 176 H2 4-channel temperature and humidity data logger in metal housing 0572 1766

with external sensor connections (NTC/capacitive humidity sensor)

testo 176 P1 5-channel pressure, temperature and humidity data logger with internal sensor (absolute pressure) and 0572 1767

external sensor connections (NTC/capacitive humidity sensor)

Accessories

testo 174D USB interface for programming and reading out the loggers testo 174T and testo 174H 0572 0500

USB cable Cable for connecting the data loggers testo 175 and testo 176 with a PC, mini USB to USB 0449 0047

SD card

SD card for collecting the measurement data from the data loggers testo 175 and testo 176, application range to -20 °C

0554 1700

Wall holder Wall holder (black) with padlock for testo 175 0554 1702

Wall holder Wall holder (black) with padlock for testo 176 0554 1703

Battery testo 174 Lithium button battery CR 2032 for testo 174T and testo 174H (please order two batteries per logger) 0515 0028

Battery for testo 175 Application range below -10 °C, alkaline manganese microcells AAA (please order 3 batteries per logger) 0515 0009

Battery for testo 175 Application range below -10 °C, Energizer L92 microcells AAA (please order 3 batteries per logger) 0515 0042

Battery for testo 176 1 x TLH-5903 AA cell 0515 1760

.

Software

ComSoft Basic 5 CD ComSoft Basic 5 (if free, registration-mandatory download not wanted) 0572 0580

ComSoft Professional 4 Pro software incl. data archiving 0554 1704

ComSoft CFR 21 Part 11 Software for requirements according to CFR 21 Part 11 for Testo data loggers 0554 1705

Calibration certificates

ISO temperature calibration certificate; temperature probe; calibration points: -18 °C, 0 °C, +40 °C; per channel/instrument 0520 0153

DKD temperature calibration certificate; temperature probe; calibration points: -18 °C, 0 °C, +60 °C; per channel/instrument 0520 0261

ISO humidity calibration certificate; humidity probe; calibration points: 11.3 %RH and 75.3 %RH at +25 °C/+77 °F; per channel/instrument 0520 0076

DKD humidity calibration certificate; humidity probe; calibration points: 11.3 %RH and 75.3 %RH at +25 °C/+77 °F; per channel/instrument 0520 0246

ISO calibration certificate absolute pressure, pressure sensor, 5 calibration points over measuring range 0520 0125

DKD calibration certificate absolute pressure, pressure sensor, 11 calibration points over measuring range 0520 0212

0981 3224/Süd/R/Q/11.2010 Subject to change without notice.