1. Backlit Display: A large, high-definition LCD screen with backlighting makes it easy to view and read numerical parameters both day and night, providing clear and intuitive readings.
2. Easy to Operate: One-button switching between parameters and reading lock support allow for immediate use without the need for complex professional training.
3. Highly Integrated and Portable: Compact in size, it can replace multiple single-function testing devices, making it ideal for outdoor sampling and on-site troubleshooting.
4. High-Precision Sensors: Utilizes highly sensitive electrodes to detect water quality conditions, with a built-in high-precision temperature sensor for automatic temperature compensation, suitable for various environments.
5. Multifunctional Testing Pen: Measures TDS, EC, pH, Cl, S.G., SALT, ORP, and temperature; press the [MODE/CAL] button briefly to switch modes.
6. Wide Range of Applications: Widely used in environmental protection fields such as industry, hospitals, domestic water supply, agricultural water use, aquarium water quality, and aquaculture.
Product Name: 8-in-1 Water Quality Test Pen
Product Model: MF-X81
Measurement Functions: TDS/EC/pH/Cl/S.G./SALT/ORP/Temperature
Material: PC+ABS
Battery Type: 1.5V × 4 (LR44 button cells; batteries not included)
pH Range: 0–14.00 pH; Accuracy: 0.01 pH; Error: ±0.05 pH
TDS Range: 0–9999 ppm / 10–200 ppt (valid range: 1–100 ppt); Accuracy: 0.1 ppt; Error: ±2% F.S.
EC Range: 0–9,999 μS/cm, 10–400 mS/cm (valid range: 1–200 mS/cm) Accuracy: 1 μS/cm, 0.1 mS/cm Error: +2% F.S.
Salinity Range: 0–9,999 ppm / 10–200 ppt Accuracy: 1 ppm / 0.1 ppt Error: +2% F.S.
Salinity % Range: 0.01%–25% Accuracy: 0.01% Error: +2% F.S.
ORP Range: ±999 mV Accuracy: 1 mV Error: ±2 mV
Specific Gravity (S.G.) Range: 0–1.222
Chloride (CL) Range: 0–4 ppm Error: ±0.1 ppm
Temperature Range: 0–60°C / 32–140°F Accuracy: 0.1°C / 0.1°F Error: ±0.5°C
Temperature Compensation: √
Screen Backlight: √
Product Dimensions: 40 × 40 × 118.25 mm
8-in-1 Water Quality Test Pen × 1
Calibration Powder × 3
User Manual × 1
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
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1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication
When you satisfied with our product and services please leave us positive feedback.
If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours