Frequency Counters

Fisherbrand™ Counter-Pen

Combination marker/digital counter suits both laboratory and plant use

Fisherbrand™ Key-Chain/Wrist-Strap/Belt-Clip Digital Counter

Designed for ease-of-use and failsafe counting

Fisherbrand™ Counter Pen Products for Science Education

Touch, sound, and count simultaneously.

Eisco™ Two Speed Ticker Taper Timer Set Products for Science Education

Helps students to visualize distance, velocity, and acceleration versus time.

Eisco Ticker Tape Timer Accessory, Paper Tape Roll Products for Science Education

Convenient replacement roll tape.

AC Recording Timer Accessories: Carbon Discs Products for Science Education

Accesory for AC Recording Timer.