Atlas Scientific Surveyor Analog pH Kit - Starter pH Sensor electronics pliers it uses 40 kHz ultrasonic

it uses 40 kHz ultrasonic pulses and a simple TRIG/ECHO interface that works with Arduino

Slave or Loopback three different modes(HC-06 just be Master/Slave

20mm Product URL https://circuit

it’s a GSM and GPS two-in-one function module which is called Crowtail- SIM808

Atlas Scientific Surveyor Analog pH Kit - Starter pH Sensor electronics pliers it uses 40 kHz ultrasonicStart Analog pH Monitoring with a Simple Ready to Use Kit The Atlas Scientific Surveyor Analog pH Kit is a low cost analog pH sensing kit built for quick integration and easy setup. It combines the Surveyor Analog pH Sensor Meter with a consumer grade pH probe and the buffer solutions needed to get started. This kit is a good fit when you want a basic analog output instead of a full digital EZO setup, while still using Atlas Scientific sensing