Many low-cost wireless temperature and humidity sensors use a 433 MHz transmitter to send data back to their base stations. This is a great choice for the manufacturer of said devices because it ...

Mining nahcolite requires very careful monitoring of temperature, pressure, and flow to not only optimize production performance-but also to mine the product sustainably and protect the freshwater ...

One RF transmitter can power sensors ... battery-free wireless smart home sensors. These sensors can include window, door, temperature, light, humidity, water, and motion sensors.