Automatic Temperature Compensation (ATC)
±2% FS accuracy
For little more than the price of a water hardness test kit, you can
have a digital test instrument that will outlast a test kit many times
over. TDSTestr 1 and 2 read directly in ppm or ppt for total dissolved
solids; TDSTestr 3 and 4 read directly in micromhos (µS) or millimhos (mS)
for conductivity.
Click below to download Acrobat (.pdf)
file of:
TDSTestr
1 product bulletin
TDSTestr
1 manual
Tech tip:
Calibration procedure for TDSTestrs 1-4
Tech tip:
TDSTestr Comparison Chart
| TDSRange |
WD-35661-10: 0 to 1990 ppm
WD-35661-20: 0 to 10.0 ppt
WD-35661-30: 0 to 1990 µS
WD-35661-40: 0 to 19.90 mS |
| TDSResolution |
WD-35661-10: 10 ppm
WD-35661-20: 0.10 ppt
WD-35661-30: 10 µS
WD-35661-40: 0.10 mS |
| Accuracy |
±2% full scale |
| Calibration |
One point with trimpot |
| ATC |
Yes |
| Electrode |
Built-in |
| Operating Temperature |
0 to 50°C (32 to 122°F) |
| Power |
Four 1.5 V batteries |
| Battery life |
100 hours continuous use |
| Dimensions |
5.9" x 1.5" x 0.8" (15 x 4 x 2.5
cm) |
| Shipping weight |
4.5 oz (125 g) |
|