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Independent and system watchdog timers
A capacitive touch sensor module based on the dedicated TTP223 touch sensor IC
absolute stable
Can freeze at any time waveform display (HOLD function)
It’s easy to use for beginners
PH4502C PH Meter UV Sensor Independent and system watchdog timersHeating voltage: 5+ 0. 2V (AC DC) Working current: 5 10mA The detection concentration range: PH0 14 The detection range of temperature: 0 80 centigrade The response time: 5S Stability time: 60S Power consumption: 0. 5W The working temperature: 10 50 centigrade (the nominal temperature 20 centigrade) Working humidity: 95%RH (nominal humidity 65%RH) Service life: 3 years Size: 42mm x 32mm x 20mm The output: analog voltage signal output Pinout TO
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