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Technical Data Sheet
37TK-1_01 37TK-1_02

Climate sensor with Bluetooth® Carbon dioxide probe
Related products
Temperature measuring range


Handle with Bluetooth® for cordless connection of probe heads to the testo 440 measuring device. With practical button on the handle for saving individual measured values.
Product details

€582.00/Pack Qty. 

excl. VAT. | 1 unit(s) per Pack Qty.

Art. No. 37TK.1

Available (note delivery time)
Ready for dispatch in 1-2 weeks
from 6 Pack Qty. €552.90/Pack Qty.
from 24 Pack Qty. €523.80/Pack Qty.

Fits to / Accessories

1022-2_01
Dry cell battery High Energy, AA, 2600 mAh
Art. No. 1022.2
€5.85  /  4  unit(s) 
379H_01
Climate measuring device testo 440 Laboratory set
Art. No. 379H.1
€602.00  /  1  unit(s) 
379K_01
Climate measuring device testo 440 basic
Art. No. 379K.1
€358.00  /  1  unit(s) 

Product details


Handle with Bluetooth® for cordless connection of probe heads to the testo 440 measuring device. With practical button on the handle for saving individual measured values.



Climate sensor with Bluetooth® Carbon dioxide probe 

For checking the room climate, e.g. in offices, production rooms or warehouses. In addition to determining the CO2 level, humidity and temperature are measured in parallel. Calculation of wet bulb temperature, dew point and absolute humidity possible.



Delivery incl. Bluetooth® handle, table stand, calibration protocol and batteries.
Technical Information
Parameters carbon dioxide 
temperature 
humidity 
Sensor type carbon dioxide probe 
Carbon dioxide measuring range 0 to 10,000 ppm  
Carbon dioxide accuracy ±(50 ppm + 3% of measured value) (0 to 5000 ppm) 
±(100 ppm + 5% of measured value) (outside) 
Version 0 to 10,000 ppm  
Temperature measuring range 0 to +50.0 °C
Temperature accuracy ±0.5 °C 
Rel. humidity measuring range 5.0 to 95.0 %
Rel. humidity accuracy max. ±5%; see operating instructions 
Air pressure measuring range 700.0 to 1100.0 hPa 
Air pressure accuracy ±3 hPa 
Radio range outdoors 20 m
L x W x D 290 x 50 x 40 mm
Power supply 4 x 1.5 V AA batteries  
Climate sensor with Bluetooth® Carbon dioxide probe
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Art. No. Temperature measuring range Pack Qty. Price Quantity
37TK.1 0 to +50.0 °C 1 unit(s)

€582.00

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Selected quantity:   0
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Downloads / MSDS

Technical Information / German

Instruction / German

Technical Information / English

Instruction / English

Technical Information / French

Instruction / French