| Part Number | Alternate P/N | Model | Kit | Price | |
|---|
| WD-35634-10 | WD3563410 | pHTestr 10: 0.1pH resolution, with replaceable electrode | No | $76.80 | |
| WD-35634-70 | WD3563470 | pHTestr 10: 0.1pH resolution, with replaceable electrode | Yes (see product page for kit contents) | $98.40 | |
| WD-35634-14 | WD3563414 | pHTestr 10 BNC: 0.01pH resolution, requires electrode with BNC connector | Not available with kit | $86.40 | |
| WD-35634-20 | WD3563420 | pHTestr 20: 0.01 pH resolution, with replaceable electrode | No | $84.00 | |
| WD-35634-80 | WD3563480 | pHTestr 20: 0.01 pH resolution, with replaceable electrode | Yes (see product page for kit contents) | $117.60 | |
| WD-35634-30 | WD3563430 | pHTestr 30: 0.01 pH resolution, 0 to 50°C temperature display & electrode | No | $92.80 | |
| WD-35634-90 | WD3563490 | pHTestr 30: 0.01 pH resolution, 0 to 50°C temperature display & electrode | Yes (see product page for kit contents) | $128.80 | |