Thermometer, Material: Glass, Dual scale, Mounted on aluminum back, Filling: 3 grams of Toluene mixed with red color, Temperature: -30 deg to 110 deg C
conductivity tester, handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts, Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs
Stopwatch, Water-resistant stopwatch with lanyard features split and cumulative time modes, 1/100th second increments, calendar/date display, and an alarm.
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