Humidity/Temperature Monitor Lighting Accessories it provides a higher level

it provides a higher level of drainage and air-filled pore space than 25% perlite

Humboldt nutrients ProZyme is specially developed for cleansing and treating all growing mediums

Daisy-chain multiple sensors into your system for large-scale or multi-zone monitoring

burn-free application

Humidity/Temperature Monitor Lighting Accessories it provides a higher levelLarge Display Digital Humidity Temperature Monitor Simultaneously monitors both temperature and humidity on an extra large 3 3 16 x 2" dual display which can be read from across a room. Monitor humidity and temperature in labs, chemical storage areas, clean rooms, stock rooms, warehouses, factories, greenhouses, and outdoors. Recall min max temperature and min max humidity readings over any time period. Stand or wall mount. Comes with 1 AAA battery