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Transmitter with 2 analog outputs (temperature/humidity) -
High-precision Testo humidity sensor with long-term stability -
Adjustment without disassembling the transmitter -
P2A software for parameterization, adjustment and analysis
Measuring and control technology helps you to reduce your energy costs. For instance, the testo 6621 temperature and humidity transmitter can be put to good use in automated building services where it meets increasing demands in terms of the accuracy, reliability and safety of climate measurements. Accurate measurement supports you in keeping your expenditure on energy cost-efficient.
Product Description
The testo 6621 temperature and humidity transmitter offers you accurate measurement of temperature and humidity values in rooms or in ducts. As a transmitter, it converts the measured parameter into a standardized electrical signal and is therefore able to be used in automated building services.
The testo 6621 temperature and humidity transmitter offers these advantages
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2 analog outputs (temperature/humidity), 1 passive humidity and temperature analog output as an option -
Patented humidity sensors: The Testo humidity sensor is high-precision and has long-term stability -
Adjustment without disassembling the temperature and humidity transmitter -
P2A software for parametrization, adjustment and analysis saves time and money during commissioning -
Optimum calibration concept through adjustment of the whole signal chain -
(1-point, 2-point and analog adjustment) -
2-line LC display optional -
Product versions: The temperature and humidity transmitter is available in various designs – for measurement in rooms or in ducts
Delivery Scope
testo 6621 temperature and humidity transmitter as a wall or duct version, with selectable signal outputs, 2-line display (optional), external interface for adjustment and commissioning, along with 2 analog outputs.
US 25875 
BR 23153 
GB 16976 
AU 9827 
CA 9281 
IN 6262 
IE 4472 
NZ 4010 
