Electronic PH Conductivity Meter, DC9V, TDS Water Tester

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

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This electronic pH conductivity meter comes with a standard DJS-1VTC conductive electrode (platinum black) and offers IP54 dust and water resistance, making it suitable for use in various common environments. This desktop ec meter covers a measuring range of 0.00μS/cm to 200mS/cm, supports both manual and automatic temperature compensation, and runs on a DC 9V power supply with an accuracy of ±1.0%FS. Its ultra-high-definition LCD screen clearly displays conductivity constants and data stability indicators, while also providing continuous reading and balanced reading functions for flexible measurement needs. With wide applicability, this water tester can effectively test the conductivity and Total Dissolved Solids (TDS) of aqueous solutions.

Specification

Model	T-DDS-307A
Shipping weight	About 0.9kg
Dimension	242×195×68(mm) (LWH)
Standard electrode measurement range	2μS/cm~200mS/cm
TDS	1. Measuring rage: 0.00mg/L~100g/L 2. Electronic unit reference error: ±1.0% (FS) 3. Minimum resolution: 0.01mg/L (Optional according to range)
Standard electrode configuration	DJS-1VTC type conductive electrode (platinum black)
Temperature	1. Rage: (-5.0~110.0)℃ 2. Minimum resolution: 0.1℃ 3. Electronic unit element value erro: ±0.2℃
Measurement accuracy	Conductivity
Conductivity	1. Measuring range: 0.00μS/cm~200mS/cm 2. Minimum resolution: 0.01μS/cm (Optional according to range) 3. Electronic unit repeatability: 0.33% (FS) 4. Electronic unit reference error: ±1.0% (FS)
Operation keys	ON/OFF, CAL, MODE, UP & DOWN, STORE/RECALL, ENTER
Product components	LCD display screen, function selection button, power switch key, electrode bracket, conductive electrode
Power supply	Power adapter (input: AC100~240V, output: DC9V)
Working temperature	(-5.0~110.0)℃
Conductivity level	Level 1.0

Features

Convenient and Accurate Reading: Equipped with a high-definition LCD display and button operation. It shows conductivity constants and data stability indicators.
Multiple Modes: Supports equilibrium measurement mode and continuous measurement mode. It can automatically identify conductivity standard solutions, supports 1-point calibration, as well as automatic and manual temperature compensation.
Multiple Options for Wide Applications: Supports temperature and custom standard solution settings. It also allows the setting of electrode constants.
Data Storage and Instrument Protection: Supports data storage (50 sets), deletion, and review. It has a power-off protection function and supports restoring factory settings.

Details

4 Tips to Improve the Accuracy of TDS Conductivity Meter

Standardize the use and maintenance of electrodes: Install them correctly and ensure a secure connection between the electrodes and the instrument. During measurement, make sure the electrodes are in full contact with the solution. Calibrate the electrodes at regular intervals according to the frequency of use, and correct parameters such as the electrode constant. Immediately after measurement, rinse the electrodes with deionized water to remove any adhering solution, preventing electrode contamination or corrosion caused by residual solution.
Optimize the measurement environment: Conduct measurements in an environment with a constant temperature as much as possible. Keep the conductivity meter away from strong electromagnetic interference sources such as large motors and transformers, and use shielded wires to connect the electrodes to the instrument to reduce the impact of electromagnetic interference on the measurement signal.
Select the measurement solution appropriately: Ensure that the collected solution sample can represent the overall characteristics of the solution to be measured, and avoid collecting uneven parts containing impurities, precipitates. Wait until the solution is fully dissolved, mixed evenly, and the temperature is stable before measuring.
Standardize instrument operation: After turning on the instrument, preheat it for a sufficient time as required by the instrument manual to allow the internal circuits and sensors of the instrument to reach a stable working state, reducing measurement errors caused by unstable instrument startup. Strictly follow the steps specified in the instrument operation manual for measurement, including the transfer of the solution and the selection of measurement time.