TESTO 177 User Manual

6
Please read through the following safety instructions carefully:
Avoiding electricity:
Never use the instrument and external probes to measure on or near live parts if the instrument is
not expressly approved for current and voltage measurement!
Product safety:
Prior to each measurement, check if the connections are connected properly via the blind plug and
if the right probe is correctly inserted. Otherwise the protection class specified in the Technical data
cannot be guaranteed.
The logger should only be operated within the parameters specified in the Technical data.
Please handle the logger with care.
The instrument should only be opened if expressly described in the instruction manual for
maintenance purposes.
Force should never be applied!
Only for testo 177-4
The probe sockets in testo 177-4 are not isolated from one another. Please take note of this when
using surface probes with a non-insulate thermocouple.
Disposal:
Please dispose of spent batteries responsibly.
You can return your logger directly to us at the end of its service life. We will dispose of it
responsibly.
1. Basic safety instructions

TESTO 177 Specifications

General

Temperature resolution	0.1 °C
Humidity accuracy	±2 %RH (+2 to +98 %RH) ±3 %RH (remaining range)
Humidity resolution	0.1 %RH
Battery life	Typically 3 years at +25 °C and 15-minute measurement cycle
Measurement Parameters	Temperature, humidity
Display	LCD
Probe Type	Integrated