Alfred's Digital Temp. Controller for Heat MatLED temperature display Precise digital controller Temperature control range 40 108F (5 42C) Precision temperature probe and removable suction cup Operating indicator light Accepts one 3 prong ground plug Compatible with most major brands of heat mats Package dimensions: 8. 1" L x 6. 0" W x 2. 1" H Shipping weight: 0. 9 lbs

The water ring can also be used without the stakes if desired

Hold Function: saves measurements for convenient reading and recording

Increases the uptake of available plant nutrients

Filter sponge included

6 individual compartments measuring 33'' (83

These cause loss of accuracy

improved electrical economy

5 (D) x 23

Emerald Harvest Micro contains a powerful blend of micronutrients

Combine with Flora Micro and Flora Gro for optimal results

despite the low density of their fiber structure

soft start ballast - Short-circuit/circuit overheat/ lamp-failure protection