Wide, dual measurement range with auto-ranging feature quickly switches
you to the highest resolution
TDSTestr 30 features 0.1
resolution below 100 ppm and 1 ppm resolution above 100 ppm
TDSTestr 40 features 0.1
µS resolution below 200 µS and 1 µS resolution above 200 µS
Microprocessor-based
Easy two-point
push-button calibration
Automatic Temperature
Compensation
Hold function; Auto-off;
error messages
The TDSTestrs 30 and 40 feature a lower range and higher resolution
for more precise measurements at low conductivity or TDS values.
Click below to download Acrobat (.pdf)
file of:
TDSTestr
10-40 product bulletin
TDSTestr
30-40 manual
Tech tip:
TDSTestr Comparison Chart
| TDSRange |
WD-35661-57 0 to 99.9 ppm and 100 to 999 ppm
WD-35661-59 0 to 199.9 µS and 200 to 1999 µS |
| TDSResolution |
WD-35661-57 0 to 99.9 ppm and 100 to 999 ppm
WD-35661-59 0 to 199.9 µS and 200 to 1999 µS |
| Accuracy |
±2% full scale |
| Calibration |
Two points push button (one per range) |
| ATC |
Yes, 2%/°C |
| Electrode |
Built-in |
| Operating Temperature |
0 to 50°C (32 to 122°F) |
| Power |
Four 1.5 V batteries |
| Battery life |
20 hours continuous use |
| Dimensions |
5.875" x 1.5" x 0.75" (15 x 4 x
2.5 cm) |
| Shipping weight |
4.5 oz (125 g) |
|