Measuring and control technology GSE

Measuring and control equipment. Hygrometers, thermometers, hygrostats, thermostats, sensors, all control of the growing space, ph meters (mostly without probes, new ones must be purchased), ec meters, ph & ec regulators, etc. etc.) Don't be afraid to buy old ph or ec meters, ec meters do not deteriorate with age and for ph you just need to buy a new probe for the old device. An ideal alternative if you want to try out watering regulation according to these devices and you don't want to buy expensive measuring devices.