Hayes Smoke-Stick and Refill Pack
6 Smoke-Sticks & dispenser pen.
Smoke matches, tapers and smoke tubes give off an unstable smoke pattern. Smoke-Stick with its straight, pencil-thin smoke pattern has been designed specifically to monitor the slightest change in air movement. Each Smoke-Stick offers a minimum of 30 minutes of continuous smoke or 90 tests of 20 seconds each.