Noise Dosimeter with SD Card Logger Reflective & Greenhouse Films and perlite makes an impressive

and perlite makes an impressive growing media when mixed with compost or your favorite potting soil

It is soluble in water and forms a strongly alkaline solution

It shows fastest

Quick Calibration Mode using Hanna pH/EC Quick Cal Solution

Use FloraKleen® monthly to purge your hydroponic system or potted plants of excess salts that can accumulate as a result of regular fertilizer application

Noise Dosimeter with SD Card Logger Reflective & Greenhouse Films and perlite makes an impressiveCombination Dosimeter, Datalogger and Sound Level Meter This compact sound dosimeter from Lutron is designed for personal sound noise exposure recording and datalogging. This meter meets IEC61252 and ANSI S11. 25 standards for noise dose and sound exposure and IEC61672 Class 2 and ANSI S1. 4 Type S for sound level measurement. Comes as a complete kit with 4GB SD card, soft carrying case, instructions, 6 AAA batteries, integrated stand, mounting