NeuLog Sound Logger Sensor Type_Abacus supplying two voltmeter scales on

supplying two voltmeter scales on one accessory so students switch between low and mid-cell voltages without rewiring

Illustrates the sources and effects of air and water pollution on an annotated wall-mountable backboard

and integrated stirrer for liquid mixing

Wooden-base Morse code key with a black knob

Designed to clamp loose components into the modular demonstration system

NeuLog Sound Logger Sensor Type_Abacus supplying two voltmeter scales onTwo operating modes on this sound data logging sensor slow at 40 to 110 dB with 0. 1 dB resolution, fast for waveform capture at up to 10,000 samples per second across the audio band.