These all use the same PCB with different components populated to achieve the different output voltages:
Note: Due to the bulkiness of the antenna
The Dragino S31B-LB is a LoRaWAN Temperature and Humidity Sensor for Internet of Things solution
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Operating temperature range: -40°C to 85°C
BITalino ClassBIT Sciences Schraubstock These all use the sameClassBIT Sciences is a teaching package designed for non technical fields. This package is ideal for science disciplines such as Physiology, Psychophysiology, Neuroscience, Biology, Sports Sciences, Health Sciences, etc., where the focus is on learning biosignals and physiology. It includes 10 individual sets fully equipped with various biosensors, including EMG, ECG, EDA, EEG, Respiration, and PPG sensors. Scope of Delivery: ClassBIT Sciences