"AP PHYSICS LAB 9 STATIC EQUILIBRIUM."

Features three-button control and large 1.9 cm (³/₄") digits readable from 6 m (20') away.

Microcomputer chip permits setting four separate channels for simultaneous countup or countdown procedures.

Timer is the perfect reminder for signaling drying/incubating times, capturing test results, and alarming for appointments.

With a modern design, polished metal case and rubberized backing, this single-channel timer is an attractive addition to any lab.

Single-channel, three-button timer has a timing capacity of 99 minutes: 59 seconds, counts either up or down, and remember the last time set.

This ten-button timer allows direct input for faster programming of desired time.

Count up to 29:59 with resolution of ¹/₅ sec. It is nickel-plated and features two-dials and a hard carrying case.

Measure the speed and acceleration of objects by counting the number of dots in a measured length of ticker tape.