Hydrofarm Jump Start Digital Thermostat for Heat Mat Water Management > Filtration and of course

and of course

Perlite varies in colour from bone white to gray

*A yellow sticky plate made of durable

black spot

and provides long lasting residual control

Hydrofarm Jump Start Digital Thermostat for Heat Mat Water Management > Filtration and of courseHYDROFARM JUMP START DIGITAL THERMOSTAT FOR HEATING MAT About Jump Start Digital Temp. Controller For Heat Mat: Digital temperature controller for heat mats Provides constant optimum temperatures for specific crops Controls temperature in colder or warmer environments Illuminated indicator light; 3 prong ground plug Compatible with all heat mats Controllable range from 68 108 F Celsius or Fahrenheit read out Max current 8. 3 amps 1000 watts Qty x 1