Product name: Noise meter Power supply: usb charging Battery: Built-in battery Model: -413 Type: Digital noise meter This professional-grade Wall-mounted/Desktop Noise Decibel Meter comes equipped with a large 13-inch color screen that provides clear,real-time decibel readings. Whether used in industrial settings, offices, or homes,this noise level tester helps monitor sound levels accurately to compliance with safety regulations or maintain comfortable noise environments. With its versatile design,it can be used as a desktop device or mounted for permanent noise monitoring. Measuring range: 30 - 130 dB Colour:As Shown Material:ABS Package Contents: 1 * Noise meter 1 * usb charging cable 1 * pack wall nails 1 * positioning sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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Product selling points: Widely used Small size, easy to carry Stable performance Easy to use Number of control channels: 8 Functional characteristics 1. Onboard STM32 is used to generate high-resolution PWM signals for precise control; 2. Support manual mode and center return mode, switch through buttons, with mode indicator light; 3. Support knob adjustment control in manual mode; 4. Number of control channels: 8; 5. Servo control accuracy: 0.09 degrees (i.e. PWM minimum change value of 1us); 6. Support servo with a control cycle of 20ms and a pulse width between 0.5 and 2.5ms 7. Can directly use the 2S lithium battery charging head for debugging and returning to the steering gear; 8. Power supply voltage range: 5-9V (specific based on the actual servo power supply voltage used); 9. Each servo interface has a self recovery fuse to prevent excessive current from burning out the servo; Instructions for use: The steering gear is a power consuming device that consumes a lot of electricity, so the current of the power supply needs to be sufficient. If the power indicator light flashes, the steering gear rotates uncontrollably, or the error is obvious, it indicates that the power supply is insufficient and needs to be replaced. About wiring: Connect VCC and GND to the power supply and plug the servo into the 2X3P pin. VCC is the positive pole, GND is the negative pole, and S is the signal terminal. Material: PCB colour: As Shown Package Contents: 1 x 8-way servo controller debugging board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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1. Durable Material: ABS plastic material used by Automobile Battery Tester, durable and high quality. 2. Type of Vehicle Used: Measuring Inst ent 12V 24V automobile battery tester LCD battery analyzer tester digital analyzer tester automobile, truck, motorcycle, SUV, boat and more. 3. Monitoring Battery Type: Digital Automotive Diagnostic Tester can detect all vehicle 12v and 24V lead-acid batteries, such as ordinary immersion batteries, AGM flat batteries, AGM spiral batteries and GEL batteries used in automobiles, suvs, light trucks, motorcycles, etc. 4. Multiple Monitoring Standards: According to SAE, DIN, IEC, EN, CA, JIS standards, Battery Tester can provide accurate test results in only 3 seconds. Display:2.7 inch LCD Cable length:650mm (25.6 inches) Current measurement range:999 (A) Current measurement accuracy:0.1 (A) Voltage measuring range:8-30 (V) Voltage measurement accuracy:0.1 (V)) Measuring range of internal resistance:0-999 (m ohm) Internal resistance measurement accuracy:0.1 (m ohm) Test range:3AH - 200Ah Test results:SOH, SOC, CCA value, IR, etc Test standards:SAE, DIN, IEC, EN, CA, JIS Voltage measuring range:8-30VDC Storage temperature:- 20℃ to+70℃ (- 4°F to 158°F) Operating temperature:- 20℃ to+60℃ (- 4°F to 140°F) Main function:automobile battery test Scope of use:all lead-acid starting batteries for automobiles, including conventional liquid charging, EFB, AGM sheet battery, AGM wound battery, GEL battery, WET battery, etc. Applicable to:automobile factories, garages, automobile battery manufacturers, automobile battery agents, educational institutions, DIY enthusiasts, etc. Colour:Red & Black Material:Plastic Size:150x90x35mm/5.9x3.5x1.3in Package Contents: 1 * Battery Tester Only the above package content, other products are not included. Note: Light reflection and different displays may c
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AC / DC Voltage: 10V / 50V / 250V / 1000V ; DC Current: 0.5mA / 50mA / 500mA Manual range selection, Analog Multimeter with test lead pair and 1x AA battery full set. Multiple protection. Adopt overvoltage, overcurrent self fusing protection circuit, meter overload protection, etc. Suitable for machine maintenance, communication, power, circuit equipment maintenance, colleges and universities student experiment, etc. Easy to read, color-coded analog displays Color: As Shown Material: Plastic Package Contents: 1x Multimeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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7 In 1 Ph/free Chlorine/orp/ec/tds/salt/temp Ph Meter Swimming Pool Salinity Tester Ip67 Waterproof f54 Free Chlorine Tester for Pool - The Digital Chlorine Tester can quickly help you monitor the concentration of free chlorine ions in your swimming pool. For most pools, the free chlorine concentration range is usually between 1-3 ppm. This effectively purifies the water while keeping it clear and transparent, making the pool look more appealing and swimmers to enjoy a healthy and pleasant swimming experience. Salt Tester for Saltwater Pool - Salinity meter can help check the salt level (Perfect level: 2700-3400 ppm) of the saltwater pool and hot tub with salt chlorinator system. Help the salt chlorinator work more efficiently in the appropriate salinity value.The Salt meter can help you keep your pool clean and avoid the negative effects of too much or too little salt on your body and pool equipment. pH Level Tester for Pool- pH: 0.00~14.00; ph pool tester can help check the pH level of pool. Maintaining the proper pH level is critical to the operation and maintenance of saltwater pools. Typically, the Perfect pH range is between 7.2 and 7.8. Regular pH testing and adjustment can help clean water, comfortable swimming, and protect pool equipment from damage. Pool Chlorine Tester VS Pool Test Strips - When testing with test strips, you have to the value of your pool based on the color of the strips; however, free chlorine meter are simpler, more accurate, and friendlier to color-insensitive users than test strips. Simply place it in the water for a few seconds to get an accurate reading. Easy to Use - The 7-in-1 ORP Meter accurately measures FAC, pH, SALT, EC, TDS, ORP and TEMP values. Backlit design allows measurements in dimly lit environments. Pocket size design to help you measure inground pool, spa, thermal pool and anytime, anywhere. Have you been struggling to find a saltwater pool tester that is bothaccurate and easy to use? Yieryi multifunctional pH EC meter will tell you the answer. Note: The pH of the swimming pool water should be between 6.5-8pH, and the ORP should be between 487-840mv so that the FAC (chlorine) value can be displayed normally. If any value of PH and ORP is not within this range, FAC will not be displayed normally. PH Range: 0.1-14.0 Resolution: 0.1ph Accuracy: 0.1ph FAC(Free Available Chlorine) Range:0.1-4.0ppm Salt Range:0-10000ppm,10.1-200.0ppt, 0.01%-25.00% (1000ppm=1ppt) Resolution: 1ppm, 10ppm Accuracy: 2% F.S. EC Range: 0-10000uS/cm,10.01-19.99mS/cm, 20.1- 400.0mS/cm , Resolution: 1uS/cm 10uS/cm 0.01mS/CM Accuracy: 2% F.S. TDS Range: 0-10000ppm,10.1-200.0ppt Resolution: 1ppm 10ppm Accuracy: 2% F.S. ORP Range:999mv Resolution: 1mv Accuracy:15mv Temperature Range: 0.0-60.0 32.0-140 Resolution: 0.1/0.1 Accuracy: 0.5 Battery: 4*1.5V LR44(Not include) Colour:As Shown Material:plastic Package Contents: 1 x 7 in 1 Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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Digital Tester 169E ORP/Redox Tester ORP Tester Potential Positive and Negative ORP Meter High Precision Tester Meter f54 Oxidation-Reduction Potential ORP is an abbreviation that represents the oxidation potential of the solution. ORP value is a measure of the ability of the redox solution, the unit is mV. ORP meter test solution redox potential of special equipment. The instrument enclosure waterproof design, waterproof rating of IP55. The electrode can be replaced. With data lock function to facilitate the measurement and recording of data stored; Negative potential (O.R.P) pen The introduction of advanced technology and components, greatly reducing the volume, reduce costs, maintain the original quality, so the use of ORP gained popularity. Suitable for functional energy water purifier and negative potential energy cups and other needs of the determination of the value of having a negative potential. The main technical indicators: Measuring range Range: 0 ~ +/- 1999mg/LmV; Resolution Resolution: 1mV; Accuracy: Accuracy: +/- 5mV; Voltage Battery: 4 x 1.5V (-13 batteries) not included; Operating Temperature Operating Temperature: 0 ~ 50; Correction Calibration: 1 point calibration Procedure: 1.Remove the protective cover. 2.Contact the "ON/OFF" switch,power. 3.Place the electrode in the test solution and gently shake until after the show read the display value is stable. 4.Contact the "HOLD" key,then keep the value of the current measurement.If you need to re-measure,then press the "HOLD" button is automatically released on hold. 5.After use,press the off switch,the electrode with distilled water,put on protective sleeve. Battery installation: If the display is blurry or display, you should change the batteries.When replacing the battery,unscrew the cover,can be replaced,pay attention to the battery polarity CALIBRATION: 1.Immerse the meter in the disilled water.Activate it after a few hours. 2.erse the meter in the calibration solution.And stir it gently. 3.Regulate the trimmer with a screwdriver until LCD screen for 265mV. 4.Rinse the electrode with distilled water,and suck it with filter paper. colour: white + green Material: ABS + electronic components Size: 18.8cm x 3.5cm x 3.5cm Package Contents: 1 x 169E ORP Tester 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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High Accuracy Food pH Tester - With the highly sensitive pH/temperature double probe, you can quickly read the results. Digital pH tester with stable reading. More chips and probes for more stable readings, twice as many as other products, no worries about readings going all over the place. Smart pH Meter - With two-point automatic calibration of 4.00, 6.86, it is easy to calibrate; With automatic temperature compensation of 32.0-122.0℉, it avoids measurement inaccuracies caused by liquid temperature changes; With automatic shut-down, its battery life is well preserved. Up to 1500 hours of continuous operation, powered by 2 AAA batteries. pH Meter for Food - If you are committed to making delicious sourdough bread, sausages, fermented sauces, salami, cheese, sushi rice, canned jam, chili sauce, or salsa, you need to get serious about pH testing. the pH tester is an essential tool that has a pH range of 0-14 and is perfectly suited for all your requirements. Easy to Use pH Meter - With the unique double-lance probe(External temperature probes), the pH meter can easily test the pH value of meat. The Food pH Meter is perfect for managing sourdough fermentation. You can use it to check the pH of sourdough during the bulk fermentation step. Material: plastic Color: as shown Package Contents: 1 x pH Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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Model Number: ez-9909 Display Type: Digital With Backlight Or Not: YES Multi-functional water quality tester Conductivity measurement range: 0 to10000uS/cm 10.01-19.99ms 20.1-400ms/cm. accuracy: ±2% of the reading TDS measurement range: 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0 PPT Salinity measurement range: 0.00 to 25.00% resolution: 0.01% PH measurement range: 0.01-14.00pH, resolution: 0.01pH, accuracy: ±0.05pH Colour:As shown Material:plastic Package Contents: 1 x 5 in 1 Water quality tester(with backlight) 1 x English manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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