With calibrated CO2 sensor module and compensated Temperature/ Humidity sensor integration
Smart public toilet ammonia and odor monitoring
2″ TFT LCD Support NA TF/SD card Support NA Frame Buffer 8MByte 8MByte SPI Speed 8MHz 8MHz Power 50mA@5V
Arduino Leonardo / Seeeduino Lite
Left 3V3 Power Supply Voltage Selection 3V3/5V
Industrial LTE CAT-1 Serial Cellular Modem USR-G771 Farm Sensors With calibrated CO2 sensor moduleIndustrial LTE CAT 1 Serial Cellular Modem USR G771 USR G771 E is an LTE CAT 1 cellular modem, which supports LTE and GSM, covers the mainstream frequency bands of European operators. It has perfect software function, supports TCP UDP transparent transmission, SMS transmission, HTTPD Client mode, and AT command configuration. Also, it is simple to configure, has high reliability and built in hardware watchdog, supports FOTA upgrading. USR G771 E has