digital water hardness tester

digital water hardness tester

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digital water hardness tester is Portable meter for measurement of water hardness by electrode measurement method, suited in field and on site.

Measuring range

Temp. compensation
Calibration Solution

(0 ~ 10)mmol/L; (0 ~ 401)mg/L(Ca);
(0 ~ 1000)mg/L(CaCO3); (0 ~ 100)ºfH(France Degree);
(0 ~ 561)mg/L(CaO); (0 ~ 56)ºdH(German Degree);
(0 ~ 20)mmol/L(Boiler); (0 ~ 70)ºeH (England Degree)。
0.01 and 0.1 water hardness units
±5% FS
(5 ~ 50)℃((automatic))
B1 Calibration Solution — 2.00×10-2 mmol/L
B2 Calibration Solution — 2.00×10-1 mmol/L
B3 Calibration Solution — 2.00 mmol/L
(B3Calibration Solution also can be used for the soaking solution of electrode)
(a)B1/B2 Calibration—using B1 and B2 Calibration Solution,suitable for < 2.00×10-2 mmol/L low concentration water quality,for example, boiler
(b)Calibration—using B2 and B3 Calibration Solution,suitable forgeneral water quality.
Measuring range
0 ~ 60℃
Other Technical Parameter
Data storage

Content Storage



Dimension and weight

Quality & safecertificate

99 groups

serial number of measuring value, measuring value, units, temperature, ATC or MTC, date, time and calibration way.

Two AA cells(1.5V×2)

Meter:(65×120×31)mm/180g; Carry Case: (255×210×50)mm/790g

IISO9001:2000 and CE

working conditions
Ambient temperature
ambient humidity
●Portable meter for measurement of water hardness (the total concentration of calcium ion and magnesium ion).
● Electrode adopts model 601-F water hardness combination electrode with patent structure. It consists of measurement electrode, reference electrode and temperature probe. Replaceable measuring head, steady potential, fast response, easy to use.
●Meter adopts intelligent chip design, automatic calibration, automatic temperature compensation, time display, data storage, low voltage display, etc.
● Ability to switch among eight units: mmol/L, mg/L (CaCO3), mg/L (CaO), mmol/L (Boiler), mg/L (Ca). Three options of three units : ºfH(France)、ºdH (Germany)and ºeH(UK)from WH-Link communication software.
● Equipped with B1、B2 and B3 calibration solution.
● IP57 waterproof rating, equipped with portable case, calibration solution and other accessories.
1. Model YD300 water hardness meter 1set
2.Model 601-S water hardness electrode( With two measruing heads and one screw plug ) 1pc
3. AA cell (1.5V ) 2pcs (included)
4.100mL hardness calibration solution ( B1, B2 and B3 ) 1btl/each
5.20mL test cup 6pcs
6. Test cup pedestal 1pc
7.Carring case 1pc
8. Operation manual 1 set

Accessory Category



Water hardness electrode

601-S water hardness electrode Suited for measurement of total concentration of calcium ion and magnesium ion, match YD300 meter, 8 pin connector

Water hardness calibration solution

Water hardness calibration solution B1 2.00×10-2 mmol/L,500mL/250mL/100mL(bottle)
Water hardness calibration solution B2 2.00×10-1 mmol/L,500mL/250mL/100mL(bottle)
Water hardness calibration solution B3 2.00 mmol/L,500mL/250mL/100mL(bottle)


Plasic test cup Specification:20mL
Test cup base Place test cup on the base