Since 1919
LaMotte Smart2 Colorimeter
It all begins here...
What are you testing today?

Individual Test Kits:

Total Dissolved Solids (Individual Test Kits)

Total Dissolved Solids: The procedure involves 2 acid-base titrations. The first is a direct titration of the negative ions. The second is a titration of positive ions after all positive ions have been exchanged for hydrogen in an ion exchange column. The sum of the titration results equals ppm TDS as CaCO3.

Order Code/Model
Test System
Range/Sensitivity
# of Tests
(# Reagents)
Shipping Code (Weight/lbs)

4801-DR
TDS-DR

Direct Reading Titrator 0-2000 ppm/20 ppm CaCO3 50 at 2000 ppm (3) HA (1)
Shipping Codes:

*(NPDWR) EPA Accepted
?(NPDES) EPA Accepted

Direct Reading Titrators have a specific range, but may be refilled to test higher concentrations.


LaMotte Company

P.O. Box 329 | 802 Washington Avenue | Chestertown | Maryland | 21620
Tel: 800-344-3100 (within the U.S.A.) | 410-778-3100 | 410-778-3101
Fax: 410-778-6394