Active Air 3-Way Meter Monitors & Timers 6 umol/s Photon Flux @

6 umol/s Photon Flux @ 277V

cold pressed Ascophyllum nodosum seaweed

BPA-free and made of 100% food-grade nylon

operating range 33 °F–110 °F

#741606 is 20 in x 4

Active Air 3-Way Meter Monitors & Timers 6 umol/s Photon Flux @Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3 Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist); light readings range from 0 LUX (low light) to 2000 LUX (very strong light); accurate pH readings range between pH 3. 5 and 8. The durable, easy to read tester is suitable for indoors or out and needs no batteries to operate. Remove from soil and clean prongs after each use to