Mechanical Stopwatch The rods are strategically placed

The rods are strategically placed for clear observation and comparison of conductivity levels

The kit includes illustrated teaching notes describing the use of the kit as:

this spherometer features a brass disc with 100 graduated divisions

armrest height

They have been carefully matched and individually electronically tuned for tonal clarity to their designated or physical range as marked

Mechanical Stopwatch The rods are strategically placedIncluded: Stainless Steel Mechanical Stopwatch Metallic Balance Nickel Alloy Hairspring + Anchor escapement. Premium Quality: Stopwatch is made of high quality, heavy duty, stainless steel. Ideal craftmanship through and through. Can withstand high temperatures, mechanical & thermal shocks. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes