Fermion: MEMS Ammonia NH3 Gas Detection Sensor (Breakout, 1-300ppm) Category_Grove (Arduino)/Grove Utility whichever state the device was

whichever state the device was in at the last power down

this thermocouple is not waterproof

It also provides fast data rates (up to 3 Mbps)

PCB trace antenna

With an SD card for sound storage and a built-in ATmega328P programmed with Arduino you'll be adding custom sound effects to your project with less hardware and in a familiar programming environment

Fermion: MEMS Ammonia NH3 Gas Detection Sensor (Breakout, 1-300ppm) Category_Grove (Arduino)/Grove Utility whichever state the device wasFermion: MEMS Ammonia NH3 Gas Detection Sensor employs state of the art micro electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2. 5mm), low power consumption (20mA), minimal heat generation, short preheating time, and swift response recovery. The sensor can qualitatively measure ammonia concentration, which is suitable for ammonia leakage in cold storage, aquaculture risk control, toilet odor monitoring