【Car Battery Capacity Tester】:Easily Check the Capacity of Your Car Battery with the LED Signal Light Display, Indicating 25%, 50%, 75%, and 100% Battery Capacity.

【Bidirectional Voltage&Continuity Testing】:The BOAK Car Battery Tester Features a Bidirectional Voltage Test Light, Allowing You to Check Polarity and Continuity with the Included Alligator Clamps. The Circuit Board Also Includes LED Indicators, with Red Light Indicating Positive Polarity and Green Light Indicating Negative Polarity.

【1-20KHz Automotive Signal Frequency Check】: With the Ability to Measure Frequencies Ranging from 1Hz to 20KHz, This Tester Is Perfect for Checking Various Vehicle Sensors and Signals Such as Wheel Speed Sensors, Fuel Injector Control Signals, Cam and Crank Outputs, and Engine Reference Signals.

【LCD Display&Illumination&Alarm Buzzer】:The Heavy-Duty Test Light Is Equipped with a Highly Clear LCD Digital Backlight Display Screen, Providing Precise Readings with a Resolution of 0.1V. The Built-In Illumination Under the Handle Allows for Easy Testing in Dark Environments. Additionally, an Alarm Buzzer Alerts You During Testing.

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Size: 80V 100A 

Applicable Batteries --- DROK battery charge-discharge monitor is suitable for any kinds of batteries. 8V-120V (6V, 12V, 24V, 36V 48V 60V 72V) lithium battery, lead-acid battery, lithium iron phosphate battery, Ni MH battery, etc.

Display Modes --- 4 kinds of display modes, display capacity(0-999.9AH),and display voltage(8-120.0V), display current(0-100.0A), battery power percentage(0-100.0%).

Screen --- LCD with yellow backlight, which let you clearly see the screen under sunlight.

Application --- can be used for many portable devices, emergency power supply, electric bike, electric motorcycle, car, RV, marine boat, golf cart.

Warranty --- one-year long time warranty since the recieve date.

【3-72V WIDER TESTING RANGE】 The voltage testing range of WINAMOO premium automotive test light is upgraded to 3-72V, wider than most test lights on the market. This auto circuit tester ideal for checking various vehicles’ electrical circuits, such as car headlights, Taillights, fuses, car batteries, circuit polarity, real and virtual electricity, real-time voltage. It can also be used to measure other 3-72V DC voltage circuit systems.

【LED DIGITAL DISPLAY & AUXILIARY LIGHTING】 Heavy Duty auto circuit light tester with LED digital display, voltage reading resolution to .1V with high accuracy to ±0.2V, clear&visible digital readouts for day and night. When measuring, there are two lighting LED beads will illuminate the measured circuit area, making night work more convenient.

【BIDIRECTIONAL VOLTAGE TESTING & COMPUTER SAFE】 This is a bidirectional voltage tester with 2 colorful LED lights and a buzzer for volt polarity indicating, the red light will be on for positive and the buzzer sounds once; the green light will be on for negative, and the buzzer sounds twice. Precision-designed circuit board generates much smaller current than normal test lights, greatly reducing the probability of burning or damaging central computer board or other sensitive circuit board.

【ANTI-LOST PROBE PROTECTIVE TIP & QUALITY MADE TESTER BODY】The test light with sharp stainless steel probe pierces wires effortlessly and can reach tight areas. Specially designed anti-lost probe protective cover can avoid stabbing the user, and will not be lost surely. High-quality shrink spring wire with anti-tensile outer PU skin and good conductivity copper inner wire, which can be stretched up to 142 inches, automatically recover after stretching make it very convenient to use and store.

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Comprehensive testing: Our coolant pressure tester kit includes various adapters that enable you to test several types of radiators and cooling systems, you will receive 1 pressure test pump with pressure gauge 1 thermometer 4 chrome plated steel cap adapters 8 anodized aluminum cap adapters 1 carrying case.

Superior Quality: Made from high-quality aluminum, this coolant pressure tester kit is built for durability and long-lasting performance.

Accurate Readings: The kit allows accurate pressure readings of up to 35 PSI, enabling you to diagnose any coolant system leaks or issues with ease.

Wide Compatibility: With multiple adapters and connection options, compatible with Audi, Alfa, BMW, Benz, Chrysler, Citroen, Ford, Honda, Mazda, Mercedes, Mitsubishi, Nissan, Opel, Peugeot, Renault, Rover, Saab, Suzuki, Toyota, Volvo, VW, Jeep, Lexus, GM, Subaru, including cars, trucks, and SUVs.

Leak detection made easy: This radiator pressure tester helps to quickly identify coolant leaks in your vehicle, saving you time and money on expensive repairs.