2-Pt. Acoustical Calibrator - Class 2 RKIN Planting Depth: Variable

Planting Depth: Variable

Germination: 10–20 Days

nutrient absorption

the XT 1000W will deliver the best light spectra on the market combined with ultra-high PPFD levels

view climate data

2-Pt. Acoustical Calibrator - Class 2 RKIN Planting Depth: VariableFor calibration of all Sper Scientific digital sound meters or any sound level meter with 1 or microphone. Conforms to ANSI S1. 40 1984 and IEC942 1988 Class 2 standards for acoustical calibrators. Simply place the calibrator on to the digital sound meters microphone, turn on the calibrator, and adjust the decibel meters reading to either 94 or 114 dB. Operates at a frequency of 1KHz 4% and with an accuracy of 0. 5 dB. Built in battery check. Easily