testo 905-T2 User guide

180°

Multi-purpose
clip

Swivel head.
The display can
always be read.

Sprung thermocouple for

150 mm

Position measuring head directly on the surface:

wrong right

On

On
On

Switching on

Press button once: segment test appears.

  

...

%

...

°

...

8.88.8

Press button twice:

C

Hold function

Press button three times:

Current reading

uneven surfaces, adapts itself
to the surface.

Included in delivery: Multi-pur­pose clip

22.2°C

Hold



21.8°C

22.1°C

Instruction manual

testo 905-T2

Temperature stick

for surface measurements

You have made the right decision by choosing a measuring
instrument from the Testo stick product line. If handled
properly you will have many years of reliable and accurate
measured results.

Technical data

Sensor: ..............................................Thermocouple, type K

Measurement range: ....-50 to +350°C; short-term to +500°C/

Parameters:..................................................................°C/°F

Resolution: ........................................................0.1°C/0.1°F

Accuracy: (referred to calibration temperature of 25°C)

Ambient temperature: ............0 to +40°C/+32°F to +104°F

Storage temperature: ................-20 to +70°C/-4 to +160°F

Response time t99: ............................................Approx. 5 s

Battery type: ..................................3 V button cell (CR2032)

Battery lifetime:..............................................Approx. 150 h

Probe stem: ................................Ø 12 mm / length:150 mm

Warranty: ..................................................................2 years

• Do not measure on live parts!

• Do not damage crossed metal wires at bottom of probe -

• Observe measurement ranges of sensor.

• Do not exceed storage and operating temperature

• Approx. 15 min. adjustment time if ambient temperature

Please read before using instrument

Avoid sharp edges.

(e.g. protect measuring instrument from direct sunlight)!

changes.

Inexpert handling cancels your warranty.

Measuring instrument conforms with
EN 50 081-1 + EN 50 082-1

Changing the battery

-58 to +660°F; short-term to +930°F

±1°C ± 1% of m.v./ ±1.8°F ± 1% of m.v.

88:88°C



On
On

Switching off

Keep button pressed for 3 sec.

Switching between °C/°F

When switching on keep button pressed until the
segment test is finished. Stick switches from °C
to °F. Press button again to return to °C. Wait 3
seconds without pressing the button. The selec­ted unit then applies.

Auto Off function

After 10 minutes in the power save mode the
instrument switches itself off.



The battery has to be changed if the symbol appears in
the display during the measurement.
Open the housing using a screwdriver. Remove the used
button cell. Put in new button cell - Observe polarisation!