Seismograph Model creates a visual representation of the shock waves generated by an earthquake, Use to teach both mathematical and geological concepts by manually pulling the paper strip and recording simple movements made by jumping or moving, Pencil not included
HOBO* 4-Channel Analog Data Logger, high-performance, LCD display data logger for building performance monitoring applications, flexible support up to four external sensors for measuring temperature, current, CO2, voltage, Twice the accuracy with 16-bit resolution
HOBO* Temperature Data Logger, records temperature in indoor environments with its integrated sensor, ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, Accuracy: +/- 0.21 C from 0 to 50 deg C
HOBO* Plug Load Data Logger, high-accuracy, easy-to-deploy data logger that measures and records the power and energy consumption of 120V plug loads from office equipment, vending machines, and other devices, Indoor use only