Photogate Timer with 5 Timing Modes, Pair of Photogates and Mounting Rods Subcategory_Skeletons supplying replacements when the originals

supplying replacements when the originals lose loft or split during repeated charging cycles

easily inclinable surface for dynamic-cart and momentum experiments in mechanics units

Cast-metal base mounts a heavy-duty electromagnet-driven fork at ~80Hz

Plastic interchangeable dial with sealed shunt or multiplier housing

5°C in a protective case for paired wet and dry bulb humidity readings

Photogate Timer with 5 Timing Modes, Pair of Photogates and Mounting Rods Subcategory_Skeletons supplying replacements when the originalsFive timing modes (Interval, Frequency, Period, Count, Stopwatch) drive a pair of photogates on mounting rods, capturing pendulum periods, freefall times, and rolling velocities.