External dimensions (L x W x H) 

55 x 85 x 10 mm

Size of the LCD display 

23 x 18 mm

Weight

35g

Storage temperature (inactive)

30 °C to +60 °C, depending on alarm limit -22 °F to +140 °F

Operating temperature

30 °C to +55 °C -22 °F to +131 °F

(display visible) 

10 °C to +55 °C  +14 °F to +131 °F

Alarm temperature range 

-25 °C to +50 °C, in 0.1 °C increments -13 °F to +122 °F

Alarm limits 

p to 5 individually programmable alarm limits   (2 single events, 3 cumulative)

Alarm time

1 minute to 20 days

Temperature measurement interval 

Every minute

Accuracy of temperature measurement 

± 0.5 °C typ. (-5 °C to +30 °C) ± 0.6 °C (beyond this range) 
± 1.0 °F typ. (+23 °F to +86 °F) ± 1.1 °F (beyond this range)

Accuracy of time measurement 

± 30 minutes/year

Calibration 

Every device is calibrated / NIST traceable

Date/time programming

GMT standard programming, other time zones on request

Protection class 

IP64

Operating lifetime and shelf life 

Up to 5 years – expiry date printed on label 

Activation

Break-off tab

Manipulation

Q-tag® CLm can not be manipulated or reset   without destroying it (irreversible display)