Musktool- YK-21PH pH Meter compact and durable design
| The YK-21PH pH Meter offers accurate and reliable pH measurements with a compact and durable design, making it an essential tool for various applications in aquariums, food processing, laboratories, and more. | 
| Exceptional Features of the YK-21PH: 
 1. High Quality and General Purpose: Designed for high-quality and general-purpose pH measurements, ensuring reliable and accurate readings. 2. Compact and User-Friendly Design: Features easy operation with a compact size and water-resistant front panel, enhancing usability and durability. 3. Large LCD Display: Equipped with a large LCD display with 21.5 mm (0.7") digit height for clear and easy readout of measurements. 4. High Input Impedance: Ensures accurate pH measurements by preventing measurement errors. 5. Data Hold Function: Includes a data hold function to freeze the desired value on the display for easy recording and analysis. 
 Technical Specifications: 
 - Measurement Range: 0 to 14.00 pH - Resolution: 0.01 pH - Accuracy: - ± 0.07 pH (pH 5 to pH 9) - ± 0.1 pH (pH 4 to pH 10) - ± 0.2 pH (pH 1 to pH 3.9, pH 10.1 to pH 13) - Display: LCD, size 21.5 mm (0.7") - Input Impedance: 10^12 ohms - Temperature Compensation: Not necessary to adjust the pH range - Data Hold:Freezes the measured pH value on the display - Sampling Time: Approximately 0.4 seconds - Operating Temperature: 0℃ to 50℃ (32℉ to 122℉) - Operating Humidity: Less than 80% RH - Calibration: External pH 4 (slope adjustment) and pH 7 (calibration adjustment) - Power Supply: 9V battery (006P) - Power Consumption: Approximately 2.0 mA - Dimensions: 205 x 68 x 30 mm (8.1 x 2.7 x 1.2 inches) - Weight: 220 g (0.48 lb) 
 Optional Accessories: 
 - pH Electrodes: - PE-03: General purpose pH electrode with BNC connector, range 1 to 13 pH (typical 0 to 14 pH), epoxy body, body size 12 mm dia. x 160 mm, cable length 1 meter - PE-11: General purpose high quality pH electrode with BNC connector, range 1 to 13 pH (typical 0 to 14 pH), epoxy body, body size 9.5 mm dia. x 120 mm, cable length 2 meters - PE-01: Professional pH electrode for laboratory and field usage, range 0 to 14 pH, epoxy body, body size 9.5 mm dia. x 130 mm, cable length 1 meter - PE-04HD: Spear tip pH electrode for sample piercing applications such as meat, sausage, and cheese, measuring range 0 to 14 pH, body size 12 mm dia. x 150 mm - Buffer Solutions: - PH-07: pH 7.00 standard buffer solution - PH-04: pH 4.00 standard buffer solution - Carrying Case: Hard carrying case (CA-06) 
 Versatile Applications: Ideal for use in aquariums, food processing, beverage industry, fish hatcheries, laboratories, paper industry, plating industry, photography, quality control, schools, colleges, swimming pools, and water conditioning. 
 Invest in the YK-21PH pH Meter for reliable, precise measurements and a robust design that meets the diverse needs of various industries with precision and ease. | 
Specifications
| Features | * High quality & general purpose pH measurement. | 
| Display | LCD, 21.5 mm ( 0.7" ) digit height. | 
| Measurement | 0 to 14 pH x 0.01 pH | 
| Range/Resolution | / | 
| Accuracy | ± 0.07 pH ( pH5 to pH 9) ± 0.1 pH ( pH 4 to pH 10) | 
| Input Impedance PH range Temp | 10^12 ohm | 
| Compensation | / | 
| Sampling Time | Approx. 0.4 second. | 
| Operating Temperature | 0 to 50 °C( 32 to 122 °F) | 
| Operating Humidity | Less than 80% RH. | 
| Calibration VR | / | 
| Power Supply | 006P DC 9V battery. | 
| Power Consumption | Approx. 2.0 mA. | 
| Dimension | 205 x 68 x 30 mm ( 8.1 x 2.7 x 1.2 inch ). | 
| Weight PH electrode | 220 g/0.48 LB. | 
| PH range Temp. Compensation | No adjust. | 
| PH electrode ( Optional ) | Any connector pH Electrode with BNC connector. | 
| Resolution | / | 
| Data Hold | To feeze the measured pH value on the display. | 
| Memory Recall | / | 
| pH Calibration | / | 
| Data Logger | / | 
| Power off | / | 
| Optional model | / | 
| Standard Accessories | Instruction Manual : 1 PC. | 
| Optional Accessories | pH electrode. | 
 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
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