Super Sprouter Standard Humidity Dome Quantity:Case of 40 but there are also two

but there are also two pockets in the top of the case specially designed for your probes

The GroLine Waterproof EC/TDS (ppm) Tester HI98318 by HANNA Instruments is a convenient pocket meter for measuring the EC/TDS of a hydroponic nutrient solution

Hour Meter

and chemical resistant

Super Sprouter Standard Humidity Dome Quantity:Case of 40 but there are also twoThe Super Sprouter Standard Humidity Dome is an excellent quality 7 inch tall humidity dome has two vents that can be opened or closed to help control humidity. The built in recessed finger slots allow for easy removal of the dome from the tray and gives streamlined fit for use in propagation racks. This dome fits the Super Sprouter 10in x 20in propagation trays. 7 inch Clear Vented