Feature: 1. PRACTICAL JUDGE: Single op amp and dual op amp screening circuit board, the circuit board can judge whether the IC can be amplified, and can roughly judge the conversion rate of the chip 2. SINGLE OP AMP MODELS: Support single op amp and dual op amp test, support LM741, LF356, NE5534, TL071, TL081, OP07 and other standard package single op amp 3. DUAL OP AMP MODELS: Support LM358, NE5532, TL072, TL082, MC1458, RC4558, OP275, AD827 and other standard package dual op amps 4. FIND OUT LOW SPEED CHIP: This product can find those low speed chips disguised as high speed chips, useful and practical 5. RELIABLE PCB: Made of excellent quality PCB materials, with reliability and miniaturization, good maintenance and interchangeability Specification: Item Type: Operational Amplifier Material: PCB Product Size: Approx. 92 x 57 x 17mm / 3.62 x 2.24 x 0.67in Working Current: More than 100mA Principle Introduction: IC1a in the circuit is connected to a multivibrator and an operational amplifier with a frequency of about 1Hz. The working state of the inverting amplifier connected to the unity gain to be tested. IC2 is an EX OR gate whose truth table is that the output is 1 when the two inputs are inverted. So: If the op amp. Normal, point A and point B of IC2 must be reversed, so C is 1, and it is still 1 after IC1b and 1d, so the yellow LED D3 is on; If the op amp. When the output is open, the C point of IC2 must be 0 all the time. After passing through IC1c, it becomes 1, and the red LED D4 is on. For chips with lower slew rates, the status indicated by the LED is always yellow, with a faint red flash. This can also be used to roughly judge the conversion rate of the chip. Since most of the second hand chips on the market use low conversion rates rather than high conversion rates, it is also possible to judge whether the chips are counterfeit. The Actual Test Low Conversion Rate Chips Such As: OP07, LM741, the yellow light is always on, the red light is slightly on. The Actual Test of High Conversion Rate Chips Such As: TL071, NE5534, MC34071 and other chips, the yellow light is always on, and the red light is off. Single Op Amp Models: LM741, LF356, NE5534, TL071, TL081, OP07 and other standard package single op amps. Dual Operational Amplifier Models: LM358, NE5532, TL072, TL082, MC1458, RC4558, OP275, AD827 and other standard package dual operational amplifiers.. Package List: 1 x Operational Amplifier Note: This board is only for use by those with professional electronic knowledge, do not provide operation guidance and technical support. Beginners please do not buy.
Fruugo United Kingdom
Wide range of applications: This static pressure pump tester is suitable for leakage water pressure testing of pipeline systems and heating devices. Note: When installing the pressure relief valve, the pressure relief hole must be aligned with the water drain hole on the tank to prevent water from splashing on the ground or body during pressure relief.
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Specifications: Portable and lightweight, easy to carry around. LCD display screen, easy to read the value. It can be used in water purifiers and filters, drink quality monitoring, pools and spas, aquariums, hydroponics. Item Name: TDS Meter Material: ABS Measurement Range: 0-9999ppm Error Range: ±2% Temperature Range: 0-50 Degree Celsius Battery: 2 x 1.5V CR032 Button Battery (Included) Features: Easy to Use, Water Tester, Portable Size: 15.5cm x 3.1cm x 2.3cm(Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x TDS Meter (Including Battery)
Fruugo United Kingdom
The pressure pump provides stable and accurate pressure testing results.The pressure test pump is an essential tool for conducting pressure tests on various construction projects. Support Holder Ukulele Guitar Playing Stand Acoustic Guitar Leg Support.
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Description: 【Efficient Coil Testing】: This solenoid tool is designed for quick and efficient testing of AC coils, making it an essential accessory for HVAC professionals and enthusiasts 【Compact Design】: With a compact size of 5cmx1.6cm, this coil tester is easy to carry and store, ensuring convenience during fieldwork or in your toolbox 【Sturdy Material】: Made from PP, this testing tool offers durability and reliability for long term use in various environments 【Versatile Application】: Ideal for checking refrigeration solenoid valves, this keychain style tester provides versatility across different coil types and applications 【Easy to Use Tool】: Its simple design allows even beginners to quickly assess the functionality of electromagnetic valve coils without any hassle Size Chart: 5cmx1.6cm/1.97inchx0.63inch Package Includes: 1x Rotation Tester and AC Detector Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.
Fruugo United Kingdom
The pressure pump provides stable and accurate pressure testing results. Ice Cream Stand Ice Cream Display Stand Iron Sushi Roll Display Stand. 3 Pcs/Set Stainless Steel Fin Brush Evaporator Cleaning Tools Whisk.
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This product is a u tube manometer, made of solid materials, safe and sturdy. It can last for a long time without being easily damaged. The product is an excellent u tube manometer that can bring you more convenience, allowing you to have a more comfortable experience. Features -Color:Silver -Material:Stainless steel -Size:38.50X7.00X1.20cm/15.13X2.75X0.47in Measurement range: 0-3000pa -Note: Random style -This vacuum tube tester can be used for a variety of different applications. -The stainless steel construction of this tool makes it resistant to both rust and high temperatures. -With a measurement range of 0-3000pa, this u tube manometer provides precise readings. -This Pressure Gauge is user-friendly and suitable for individuals with all levels of experience. -The compact and lightweight design of this Vacuum Pressure Gauge makes it easy to transport and use in different locations. Package list: 1 x gauge
Fruugo United Kingdom
Wide range of applications: This static pressure pump tester is suitable for leakage water pressure testing of pipeline systems and heating devices. Note: When installing the pressure relief valve, the pressure relief hole must be aligned with the water drain hole on the tank to prevent water from splashing on the ground or body during pressure relief.
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Product Name:Colorful Angel Eye LED Lights UniversalVoltage: 9-30v applicableVehicle:Motorcycle, truck, car, electric carWorking voltage:9-30vLighting mode: welcome flow of light/-blue/illusion color/turning flow of light ......Lighting color: red/green/blue/white/yellow/pink/colorful streaming and so on.Feature:1.Low power consumption,Longer work life, Energy saving.2.High quality and eco-friendly material.3.Elaborate design, good structure,Fast response,no- flicker and no-blind spots.4.Super bright, waterproof, no positive and negative difference.5.Easy to installation, plug and play style, just need to connect the wires with the power.HOW TO CONNECT THE LINE:1.Black line- Car Battery, Red line-ACC/ Driving, Yellow line-Turn signal2.White line-you can choose not to connect, when you connect it to the power ,it will turn off the light.(Extinguish light)3.About how to find ACC: Use an Electroscope/Voltage tester to test. When the car starts, there is electricity/voltage, and when the car turns off, there is no electricity/voltage. That is ACC.Package included: 1 sets RGB angel eye
Fruugo United Kingdom
Be widely used in waterproof fabric, tent, raincoat, down jacket, ski clothes, mountaineering clothes, diving clothes, and. rising speed: 10 + 3mmh2o (standard rate) 60 + 20 mmh2o. Pressure area: 100cm2, d=11.28cm.
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Features: DC voltage measurement, make your vehicle work at normal voltage, prolong your vehicle's service life. LED panel digital display, reading in seconds, more intuitive, quick and convenient. Mini size, easy to carry, won't obstruct riding, guarantee your safe riding. Easy to install with necessary fittings, hold the meter in place, fix tightly and not easy to move, great for checking voltage. Made of premium quality material, flame retardant and environment-friendly, safe and durable. Specification: Voltage: DC 12V Voltage Measuring Range: DC 10-150V Display: LED Material: Acrylic & Stainless Steel Color: Black LED Color: Blue Bracket Color: Silver, Multicolor (optional) Package Size: 13 * 10.5 * 3cm / 5.12 * 4.13 * 1.18in Package Weight: 76g Package List: 1 * Voltmeter 1 * Double-sided Adhesive Tape 1 * Bracket
Fruugo United Kingdom
Be widely used in waterproof fabric, tent, raincoat, down jacket, ski clothes, mountaineering clothes, diving clothes, and. rising speed: 10 + 3mmh2o (standard rate) 60 + 20 mmh2o. Pressure area: 100cm2, d=11.28cm.
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Specification: Material: ABS Working temperature: 0-40 Celsius Trigger point: High voltage coil No. 1 spark plug Input voltage: 12V Speed: 200-10000r/min Color: Black Size: As the Pictures Features: The handle is ergonomically designed with comfortable press keys, great Press feeling and easy operation. And the high quality makes it be worn hardly. This timing device with 12V working voltage is suitable for cars, motorcycles and all gasoline engines of two strokes or four strokes. Capable of testing the ignition timing scale on the engine flywheel or belt pulley intuitively to adjust appropriately. Able to detect the automotive knock suppression control system and vacuum advance angle control system, change its advance angle with the speed change. It is able to reset the ignition timing under the normal wear of the engine for a long time, the regular replacement of timing belt and belt pulley, the decrease of cylinder pressure. Ignition timing directly affects the normal operation of the engine. It will cause the engine start-up failure if the worst come to the worst. If too early, the engine speeds up and produces "GA, GA" like metal knocking with large starting resistance, difficult engine rotation, power reduction and idling instability, trembling. If too late, it will cause difficult start-up or insufficient power, thus accelerated oil consumption and engine abrasion. Attention : The power supply is 12V with red connecting to positive and black to negative. Don't get it wrong. The high voltage wire induction clamp is clamped on the high voltage line of cylinder with the arrow on the induction clamp pointing to the direction of the spark plug for normal working. Only the above package content, other products are not included. Package Included: 1 Set x Ignition Timing Device _x000D_
Fruugo United Kingdom
Wide range of applications: This static pressure pump tester is suitable for leakage water pressure testing of pipeline systems and heating devices. Note: When installing the pressure relief valve, the pressure relief hole must be aligned with the water drain hole on the tank to prevent water from splashing on the ground or body during pressure relief.
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1. Robust and Design: The analog multitester is engineered with a drop shock-proof meter, ensuring it withstands tough working conditions and accidental drops. This makes it a reliable tool for professionals and DIY enthusiasts alike. 2. Precise Measurement Capabilities: Equipped with a null (zero center) meter 5 / 25 in DCV, the analog multimeter tester offers high precision in measurements, allowing for accurate troubleshooting and testing in various electrical applications. 3. High Resistance Measurement: With the capability to measure high resistance up to 200M at low voltage, the portable voltmeter ammeter is ideal for a wide range of electrical testing needs, from repairs to complex industrial tasks. 4. Safety and Convenience Combined: Featuring a protective body cover and compliance with IEC61010-1 (EN61010-1) 2001-02 CAT.III 600V Max. / CAT.II 1000VDC / 750VAC Max standards, the voltage current tester ensures user safety while offering the convenience of portability and ease of use. 5. Versatile Testing Range: The handheld pointer analog meter is not limited to voltage and current testing; it also includes capacitance, dB, and Li measurement capabilities with a bandwidth of 30kHz-100kHz (AC10V), making it a versatile tool for a wide array of electrical diagnostics. : ELECTRICAL Display: pointer type Model: -360TRD Power supply: 2 x AA battery (the product does not contain a battery) Zero meter equipment: 5/25 Resistance measurement up to: 200MW Capacitance measurement: up to 10uF Colour:As Shown Material:plastic Package Contents: 1 x Multimeter(Due to different product batches, the appearance , which does not affect the use) 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.
Fruugo United Kingdom
The pressure test pump is an essential tool for conducting pressure tests on various construction projects. The pressure pump provides stable and accurate pressure testing results. Hydraulic Tester Pump 25KG Pressure Gauge For Testing.
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