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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Factory Calibrated: The PH-80 meter is factory calibration to pH 7
• No fertilization necessary for up to 30 days
The battery percent level is displayed at start up alerting the user to the remaining battery power that is available
Metal Halide and High Pressure Sodium bulbs are favored by growers because of the wide color spectrum and efficiency
Gardening Indoors with H.I.D. Lights by George F. Van Patten & Alyssa F. Bust flowering nutrients Factory Calibrated: The PH-80 meterGardening Indoors with H. I. D. Lights, by George Van Patten, is a "how to" book that unlocks the door to the world of gardening indoors under fluorescent and high intensity discharge (HID) lamps. From the book: The benefits of artificial lighting are not exclusive to the professional gardener. Home hobbyists also reap the benefits of flexibility, control, and increased plant health. An otherwise unusable dark basement corner can be converted into a
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