testo 176P1 - Five-channel pressure, temperature, and RH data logger

Order-Nr.  0572 1767

  • Pressure, temperature, and humidity measurements

  • Internal pressure and external temperature and humidity probes for quick, highly accurate measurements

  • Large, easy to read, backlit display

  • Large data memory capable of storing 2,000,000 measurements

The testo 176P1 pressure, temperature, and humidity measurement logger has a large display that makes it easy to read. The 176P1 is an ideal pressure, temperature, and RH data logger for the highly accurate and secure documentation of conditions in a laboratory, enviro chamber, clean room, or hospital control area. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software.

Product Description

The testo 176P1 pressure, temperature, and RH data logger is an ideal, highly accurate data logger for the monitoring of pressures, temperatures, and humidity.
  • Internal pressure and external NTC sensor connections
  • Data transfer possible using the USB port, or SD card (optional)
  • Easy to read large display that shows current reading
  • IP54 protection class
  • Capable of CFR 21 Part 11 Compliancy
  • Free data logger software available for download
  • Data is secured within the logger, and can be password protected using ComSoft


Delivery Scope

testo 176P1 pressure, temperature, and humidity highly accurate measurement logger, batteries, certificate of conformity
Temperature - NTC

Measuring range

-4° to 158 °F / -20 to +70 °C


±0.4 °F (-4° to 158 °F) ±1 Digit / ±0.2 °C (-20 to +70 °C) ±1 Digit

±0.7 °F (Remaining Range) ±1 Digit / ±0.4 °C (Remaining Range) ±1 Digit


0.1 °F / 0.1 °C

Humidity - Capacitive

Measuring range

0 to 100 %rH*


dependent on probe selected


0.1 %rH

* Not for condensing atmospheres.

Absolute Pressure

Measuring range

9 to 16 psi / 600 to 1100 mbar


±0.0 psi (32° to 122 °F) ±1 Digit / ±3 mbar (0 to +50 °C) ±1 Digit


0.0 psi / 0.1 mbar

General technical data


7.69 oz.


4 x 2 x 1 in. / 103 x 63 x 33 mm

Operating temperature

-4° to 158 °F / -20 to +70 °C



Protection class



4 external; 1 internal

Product colour


Connectable probes

2 x NTC temperature probe or 2 x humidity probe


EU-guideline 2014/30/EU; 2011/65/EU

Measuring rate

1 s to 24 h; 2 s to 24 h (online measurement)

Battery type

1 x Lithium (TL-5903)

Battery life

8 years at 15 min. meas. rate, +25 °C


mini usb, SD card slot


2,000,000 measuring values

Storage temperature

-40° to 185 °F / -40 to +85 °C



USB connection cable

Order Number: 0449 0047

$ 39.00
excl. tax
Wall holder

Order Number: 0554 1703

ComSoft Professional 4

Order Number: 0554 1704

ComSoft CFR 21 Part 11

Order Number: 0554 1705

Monitoring and documentation of laboratory conditions

The ambient conditions for research projects must frequently be documented in laboratories to check external influencing factors. In addition to recording temperature and humidity, this also includes checking the absolute pressure. There are major requirements in terms of reliability, along with tamper-proofing and data security of the recording instrument, as incorrect documentation could invalidate the whole research result. There are only a few instruments which can log all three measurement parameters at the same time and also offer the required amount of data security.