Bluelab® Combo Meter royal gold applied as a sidedress or

applied as a sidedress or steeped to make a potent guano tea or foliar spray

Has no effects on beneficial insects like honey bees or ladybugs when used as directed

All types of fruiting plants and flowers will benefit from mid-season applications

Just trim off the rough edge

Bluelab® Combo Meter royal gold applied as a sidedress orThe Bluelab Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops' daily nutrient requirements. Simple push button pH calibration. Successful pH calibration indicators. Low battery indicator. Over range and under range indicators. Display options available in degrees C and F, EC, CF, ppm