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000 years in traditional Chinese medicine
Steinernema carpocapsae and Steinernema feltiae
HORTILUX Metal Halide provides optimum spectral energy required for vegetative growth
Graphic Display Sound Meter Controllers Orders ship via OvernightFeatures a large bar graph display, A & C decibel frequency weighting scales, min max, peak, fast or slow response, AC or DC output, auto power off, low battery indicator. Covers 30 to 130 dB in the A & C scales with a resolution of 0. 1 dB and an accuracy of 1. 4 dB (ref 94 dB@1KHz). Comes ready to use with a windscreen, 9V battery, instructions, and a foam lined hard shell carrying case. N. I. S. T. Traceable Certificate of Calibration available, or