Other Products You May Like
Need Help?
Like Us On
In-Line TDS Meters
Quick jump to: DM1 | DM2 | SM1
HM Digital DM-1: In-Line Dual TDS Meter
Install on systems such as aquarium r/o systems, window cleaning systems, measure tds in and out of r/o.
FEATURES
Displays TDS levels of the feed water and product water with in & out electrode probes.
Highly efficient and accurate due to its advanced microprocessor technology.
Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm.
From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)
Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
Comes equipped with John Guest Quick-Connect T-fittings as shown.
Installs quickly and easily.
- Range: 0-9990 ppm
- Accuracy: ±2%
- Cable Length: 24.5" (including sensor)
- Fittings: 1/4" standard, also available with 3/8"
- Power Source: 2 x 1.5V button cell batteries (included)
- Battery Life: approx. 1000 hours of continuous use
- Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)
- Weight: 79.4 g (2.8 oz.)
Prices include delivery to UK Mainland
(ex. Scottish Highlands)
Select Fitting Size:
With 1/4" fittings - £30.83
(£37.00 including vat and UK delivery)
With 3/8" fittings - £36.42
(£43.70 including vat and UK delivery)
With 1/2" fittings - £40.00
(£48.00 including vat and UK delivery)
With 1/2" fittings and 1/2" stems - £42.50
(£51.00 including vat and UK delivery)
DM-1 Without T fittings - £28.75
(£34.50 including VAT and UK delivery)
HM Digital DM-2: Commercial In-Line Dual TDS Meter
Install this in-line TDS Meter on industrial systems such as car washing, window washing, manufacturing, and food processing.
FEATURES
Highly efficient and accurate due to its advanced microprocessor technology.
Displays TDS levels of the Feed Water and Product Water with in & out electrode probes.
Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds.
Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. From 1000 to 9990 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image.
Factory calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
Comes equipped with 1/4 inch John Guest Quick-Connect T-fittings as shown. Also available with 3/8" fittings.
Installs quickly and easily.
Differences from the DM-1
Designed for commercial/industrial applications.
Stronger, water-resistant casing.
Calibration can be carried out individually or simultaneously on each line.
Improved design, including an extra large, easy-to-read LCD display.
Longer, waterproof, shielded cables.
Variable mounting bracket.
- Range: 0-9990 ppm
- Accuracy: ±2%
- Cable Length: 46" (including sensor)
- Calibration: Factory calibrated to NaCl 342 ppm. Re-calibration can be carried out separately for each line, or simultaneously for both.
- Power Source: 2 AAA batteries (included)
- Battery Life: over 1000 hours of continuous use
- Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.)
- Weight: 201.3 g (7.1 oz.)
Prices include delivery to UK Mainland
(ex. Scottish Highlands)
Select Fitting Size:
With 1/4" fittings - £43.33
(£52.00 including vat and UK delivery)
With 3/8" fittings - £45.83
(£55.00 including vat and UK delivery)
With 1/2" fittings and 1/2" stems to fit on 1/2" hose - £56.25
(£67.50 including vat and UK delivery)
HM Digital DM-3: Commercial In-Line Dual EC/TDS Monitor
Introducing HM Digital's newest product in its range of in-line TDS monitors which measure PPM, PPT and EC in the range of µS and mS.
The HM Digital DM-3 is an outstanding monitor in that it measures at a lower reading than TDS Meters, giving you a more accurate measurement of your water quality. For example, on the TDS-3 meter, pure water would be indicated at 000 ppm whereas the DM-3 gives a more advanced reading i.e. 0.5 ppm.
This is a must-have instrument to measure the performance of your RO Membrane and DI Resin.
- Range
- EC: 0~9999µS/0~9.99mS
- TDS: 0~5000ppm/ 0~5ppt
- Resolution:
- EC:
- 0.1µS (0~99.9)
- 1µS (100~999)
- 10µS (1000~9990)
- 0.01mS (0.00~9.99)
- TDS:
- 0.1ppm (0~99.9)
- 1ppm (100~999)
- 10ppm (1000~5000)
- 0.01 ppt (0.00~5.00)
- Accuracy: ±2%
- Conversion Factor: NaCl (avg. 0.5)
- Cable Length: 1.2m /3.9ft, shielded cables
- Sensor: Dual, 1/4" diameter for quick-connect fittings (model SP-3, included)
- Digital Calibration: Digitally factory calibrated to NaCl 342 ppm.
- Re-calibration can be done separately for each line.
- Power Source: 2 x AA batteries (included)
- Size: 11.6 x 1.9 x 7.0 cm (4.6 x 0.7 x 2.8 in)
- Weight: 225 g (7.9 oz.)
Prices include delivery to UK Mainland
(ex. Scottish Highlands)
Select Fitting Size:
Without fittings - £45.83
(£55.00 including vat and UK delivery)
With 1/4" fittings - £49.83
(£59.50 including vat and UK delivery)
With 3/8" fittings -
£52.50
(£63.00 including vat and UK delivery)
With 1/2" fittings and 1/2" stems - £60.83
(£73.00 including vat and UK delivery)
SM-1: In-Line Single TDS Meter
Ideal for any water filtration system such as reverse osmosis systems, coolers etc.
FEATURES
Displays TDS level of a single water line.
Highly efficient and accurate due to its advanced microprocessor technology.
Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
Wide Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)
Factory Calibrated :- our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
Comes equipped with John Guest Quick-Connect T-fitting (1/4 inch standard).
Installs quickly and easily.
- Range: 0-9990 ppm
- Accuracy: ±2%
- Cable Length: 24.5" (including sensor)
- Fittings: 1/4" standard
- Power Source: 2 x 1.5V button cell batteries (included)
- Battery Life: approx. 1000 hours of continuous use
- Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)
- Weight: 79.4 g (2.8 oz.)
Prices include delivery to UK Mainland
(ex. Scottish
Highlands)
Select Fitting Size:
With 1/4" fittings - £22.50
(£27.00
including vat and UK delivery)
Sorry out of Stock
With 3/8" fittings - £23.33
(£28.00
including vat and UK delivery)
Sorry out of Stock
With 1/2" fittings (does not include 1/2" stem) -
£25.83
(£31.00 including vat and UK
delivery)
Sorry out of Stock
With 1/2" fittings and 1/2" stems - £28.08
(£33.70 including vat and UK delivery)
Sorry out of Stock