Sale price 11000.00 / GBP £2286.00 + VAT
Martin Lishman Digital Potato Hydrometer

This product sells out quickly once back in stock. To secure one from the next batch, please place a pre-order. – pre-orders are the only way to guarantee allocation. Estimated delivery times will be confirmed on enquiry.
Description
The PW4 Digital Potato Hydrometer automatically and quickly calculates the dry matter content, starch percentage, underwater weight and specific gravity of potatoes using the weight in water method. It is used extensively throughout the potato industry by producers of all types of potato products.
Everything you need to get weighing
The PW4 comes with a sample basket with suspension chain, pre-installed rechargeable battery, battery charger and strong carry case.
All models are suitable for standard and French fry dry matter testing
Range 1.5-6Kg potatoes (must not exceed 10Kg)
The latest version, the PW4 Digital Potato Hydrometer, model and comes with many new enhancements and features.
Key Features
- Dry matter content, starch percentage, underwater weight and specific gravity
- Instant results – does not require a precisely-weighed sample; measures all potato dry matters
- Easy to use – static unit, needs only a small water container (c.40cm deep); push-button control
- Precise – digital read-out; accurate to +/- 0.3%; easy self-calibration (using a known test weight)
- Data storage – internal memory for up to 5000 time and date stamped weights
- USB export as standard – export batch data in .CSV format to a USB drive for further analysis
- Standard or French fry dry matter testing
| Weight | 3.6 kg |
|---|---|
| Dimensions | 48 × 48 × 39 cm |
Full Details and Specifications
Hydrometer Range
| Hydrometer | Product Code | Weight range |
|---|---|---|
| PW4 | MAS 6019 | 1.5 – 6Kg Must not exceed 10Kg |
Technical Specifications
| Dimensions | Weight | Accuracy | Resolution | Memory | Data output | Power | Languages |
|---|---|---|---|---|---|---|---|
| Weigher: 170 x 140 x 97mm Case: 450 x 130 x 360mm | Weigher: 1.5Kg w/ carry case: 2.14Kg | +/- 0.3% | 0.01 scale reading | 5000 individual weights Data stored if power off or batteries removed | XML file Readable in Excel (USB version only) | Internal rechargeable lithium battery | EN, SP, DE, FR, PT |
Battery and charger information
NB. The Dry Matter Weigher is NOT waterproof
Requirements
| Water container | Water | Operating conditions |
|---|---|---|
| 356mm dia. x 400mm deep Clean metal or plastic Basket and sample must be fully immersed | Clean water c.15°C / 60°F | -30 to 50°C up to 95% RH (Avoid sudden changes that can cause condensation) |
Product Code : POT/HYDPW4
Categories Dry Matter Measurement, Potatoes
