Environmental sensors can be very costly, which can create a major barrier for community science groups. If you are interested in taking your data collection to another level, you can explore the innovative low-cost sensor technologies and water monitoring kits that are being built and sold by community science groups and water tech entrepreneurs. These include DIY data loggers that use open-source hardware to offer a low-cost alternative to conventional sensors. Other groups offer off-the-shelf, easy-to-use water quality test kits