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Testo Smart Probes
Page 14 last saved: 2021-12-31
4.4 testo 510i operation principle
testo 510i has a differential pressure sensor, which can recognize differential pressure signal from
gas pipes. Sensor can transform Pressure signal to electronic signal automatically, and transform
analog signal from sensor to digital signal for MCU by A/D.
Then MCU control the Bluetooth module to send data to smart phone via Bluetooth and also
received parameter changed and action protocol from smart phone.
Key is use for start ,stop and hold value.
Led is use for indicate status of device.
Red : warning, such as low battery level
Yellow: finding App in smart phone via Bluetooth
Green: communication success.
4.5 testo 549i operation principle
testo 549i has a high pressure sensor, which can recognize high pressure from gas pipe. Sensor
can transform Pressure signal to electronic signal automatically, and transform analog signal from
sensor to digital signal for MCU by A/D.
Then MCU control the Bluetooth module to send data to smart phone via Bluetooth and also
received parameter changed and action protocol from smart phone.
Key is use for start ,stop and hold value.
Led is use for indicate status of device.
Red : warning, such as low battery level
Yellow: finding App in smart phone via Bluetooth
Green: communication success.
4.6 testo 605i operation principle
testo 605i has a temperature senor and humidity sensor, which can recognize ambient
temperature and humidity in air. Sensors can transform temperature and humidity signals to
electronic signal automatically, and transform analog signal from sensor to digital signal for MCU
by A/D.
Then MCU control the Bluetooth module to send data to smart phone via Bluetooth and also
received parameter changed and action protocol from smart phone.