Using a white light source and 90° detection, the TB250 is EPA
compliant (USEPA 180.1). Featuring a compact, ergonomic design,
simple 5-key operation, integrated diagnostics, auto-ranging and a
long battery and bulb life, the TB200 is great for the lab or the field.
Calibration is simple with the included calibration standards.
Meter includes calibration set, sample cells, (4) AA batteries, carrying
case and instructions.