228 & 229 Particle Counter

The simplest, one switch, one display and quick results particle counters and now available. The Model 228 takes a six second sample, then calculates and displays the concentration in particles per cubic foot. The 229 displays the number of particles in 0.1 cubic feet of air after a one-minute sample. Both units detect discrete particles using a laser based sensor.
| Model No. | Price |
| 228A | Quote |
| 228B | Quote |
| 229A | Quote |
| 229B | Quote |
Call Toll Free 1-800-334-9142