Reviews Frequency Meter Calibration

HFBTE LCR Meter Inductance Resistance Capacitance Tester Digital Bridge Meter with Testing Frequency 100Hz 120Hz 1KHz 10KHz 40kHz 100KHz Basic Accuracy 0.3%

  • LC200A portable meter is based on the LC resonant principle, adding high-speed micro-controller precision measurement calculation. The meter has wide measurement range and high precision, it's measuring range is below 1uH and 1pF. Wide measurement range, high accuracy, small size, light weight and portable..
  • LC200A series can be powered by mini USB cable or included Φ5 DC power supply cable. Note: The power supply voltage is 5V. You can also install 4 AA batteries to power the meter. If the meter is not used for 5 minutes when it is battery powered, it will automatically turn off the power..
  • There are five buttons. They are reset button in red, Hi.C, Hi.L, L/C and extended FUNC button in blue. Just press red the button to calibrate. Open circuit calibration in capacitance measuring mode. Short circuit calibration in inductance measuring mode..
  • Capacitance: 0.01pF-100mF. Inductance: 0.001uH-100H. Frequency: 500KHz/500Hz-50KHz. Accuracy 1% of capacitance range 1pF~1uF, 5% of range 1uF~100mF, 1% of inductance range 1uH~1H, 5% of range 1H~100H..
  • Package include: 1 x handheld LC meter, 2 x banana plug to alligator clip test leads, 1 x LCR kelvin alligator clip test lead, 1 x USB cable, 1 x charging cable, 1 x manual..
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Lux Light Meter for Photography Grow Plants Led Photometer Lighting Intensity Brightness Measurement Pocket Digital Photo Illuminance Sensor

  • AS803 Lux Light Meter is used to measure intensities of illumination in Lux or Footcandles, widely used in scenic design, research teaching, industry inspection as well as agriculture researching and illumination control..
  • With the advanced built-in calibration sensor and twice per second frequency, it takes only a split second for an accurate reading. The rotatable head is beneficial to multi-directional detection..
  • Hand-held design and small size make the meter easy to carry..
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TDS/pH/Temperature 3-in-1 pH Meter with ATC 0.01 High Precision Water Quality pH Tester Digital, pH Measurement Range with 0-14, pH Meter for Water Household Drinking, Pool and Aquarium

  • ✔️3-in-1 pH Meter - pH meter has a three-in-one function, which can measure pH, TDS and temperature with high precision at the same time. The detailed manual included will show you how to get the best accurate and stable reading..
  • ✔️Auto Calibration - Digital pH meter factory calibrated, but recalibration is needed in case of long period of inactivity or after a frequent use. pH 4.00/pH 6.86/pH 9.18 calibration powders are included. Push the auto-calibration button, the pH meter will automatically identify the calibration solutions..
  • ✔️ Accurate Testing - pH meter using a high sensitivity glass probe, the pH meter with a measurement range of 0-14.0 can quickly and easily read accurate pH values and can perform accurate tests within ± 0.01 pH range. The one-button lock reading feature helps lock the reading even when the pH meter is removed from the sample..
  • ✔️Mini Size - Lightweight and portable size allows you to take it around easily in your pocket and do your measuring anywhere. pH meter can help you test it whether you take it to the pool, on a trip, to the beach or camping..
  • ✔️Widely Used - Ideal for home or laboratory uses. Digital pH meter can be used to test drinking water, swimming pools, pH balance in aquarium, bath tu....
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Light Transmission Meter Spectrum Transmittance Meter for Testing The Transmission Value of The Mobile Phone Lens

  • Type:Lens Transmission Meter, Spectrum Transmission Meter,Light Transmission Meter,Spectrum Transmittance Meter.
  • Accuracy: ±2%(Colorless and transparent material).
  • PL transmission meter, BL transmission meter, Light Transmittance Meter, Three function in ONE device..
  • Self-calibration and auto-calibration, NO need any manual adjustments..
  • Simple operation, putting the testing sample in the testing position, PL, BL and VL transmission values of the sample will simultaneously display..
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Taccometer Wood Moisture Meter, Pin-Type Digatal Water Leak Detector, Measure Wood Humidity, Build Material, Environment Temperature, 3 Colored Indicators, Digital LCD Display

  • 【3 indicators - high accuracy, fast indication】 The accuracy of the moisture meter is ±2%, the resolution is 0.1%, the measured value is displayed on the LCD, and the moisture condition level of the wood is quickly indicated by the green (low), yellow (medium) and red (high) 3 indicators..
  • 【8 calibration scales - more professional】 Through professional design, wood moisture measurement mode has 8 calibration scales(A,B, C, D, E, F, G, H), based on different types of wood materials. You can choose the matched calibration scale according to the calibration tables of manual, which can provide higher measurement accuracy..
  • 【More functions】 The moisture meter can also measure the ambient temperature, and has a one-key conversion button for temperature unit C/°F. It is easy to compare the moisture content of the measured object at different temperatures. The lid of the moisture meter also has a Test Aid module to determine whether the moisture meter is working properly. In addition, the moisture meter also has automatic power-off, low battery indicator functions..
  • 【Easy to use, strong and durable】 The moisture meter adopts high-strength high-precision stainless steel probe and ABS engineering plastic shell, which is strong a....
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AMTAST Digital Coffee Densitometer Coffee Concentration Refractometer Sugar Drinks Density Coffee Brix TDS Meter AMR300

  • Function: Coffee concentration with range of 0-25%.
  • Provide with suction tube and spare protective cover. The function keys are clear and easy to operate. Digital screen with large number, battery power can be displayed..
  • Temperature unit converting: Press key “SCALE” more than 2 seconds, meter will display Celsius or Fahrenheit..
  • Calibration: No need calibration every time. Drip 3~5 drops distilled water in sample plate, make sure the water and meter temperature is same and standard temperature is 20ºC, then cover it. Press key “CAL” more than 2 seconds until “CAL” flashing, press “CAL” key again, meter will display “END” and show 0.0%..
  • Power off: Meter will power off within one minute if no any operation..
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HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume

  • NaCl calibration solution, available in 342 ppm or 1000 ppm.
  • Comes in lightweight HDPE plastic bottles.
  • Use the HM Digital TDS Calibration Solution (342 PPM) to periodically re-calibrate your HM Digital TDS meter or HM Digital Water Quality Tester.
  • This HM Digital TDS Calibration Solution is also known as Water Tester Solution andTDS Meter Calibration Solution.
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Tecsun H501 Digital Worldband AM/FM Shortwave Longwave Radio with SSB Reception, Dual Speakers, & MP3 Player, Matte Black

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) ， a simple RF/clock generator for calibration reference or clock generation，a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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2 Pack pH Meter and TDS Meter, 0.05 pH High Accuracy Tester Pen, ± 2% Readout Accuracy Digital Water Quality Filter Pen, 0-9990ppm, Ideal Water Purity Test for Drinking Water, Aquariums, Hydroponics

  • ...rofessional TDS, pH Pen. Upgraded with big LCD for easier reading, and hold-lock function for easier use. Just turn TDS meter on and stir water gently, then stabilized readings will be hold-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 5 minutes..
  • 【How to use calibration】- Press CAL for 5 seconds to enter the calibration mode, press in turn to select the powders corresponding to 6.86, 4.01, and 9.18 to complete the calibration. pH meter has been calibrated before delivery, the buyer does not need to re-calibrate after receiving the goods, In the following cases, the pH meter must be re-calibrated: Has been used for a long time after calibration.
  • The measurement accuracy requirements are relatively high..
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JUNSHUNTONG HF VFO for Ham SDR QRP Transceiver,20K-220MHz RF Generator Superheterodyne Receiver Debugger,Tcxo Clock,S-Meter, 20 Band presets

  • 【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
  • 【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) ， a simple RF/clock generator for calibration reference or clock generation，a common 128x64 I2C OLED SSD1306 display and Si5351 module..
  • 【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
  • 【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
  • 【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..
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VOLCANOES CLUB Moisture Meter - Digital Pin Type Humidity Sensor Water Leak Detector For Wood, Wall, Plaster, Floor, Brick - Accurate Inspector Tool - Backlit LCD Screen - Level Tester (Low-Mid-High)

  • ...u need a moisture meter? Using our moisture meter, you’ll be able to effectively prevent any water leaks and damages, as well as cracks, splits, warping and mold growth. A moister meter can save you money and time, so you don’t spend a lot of money on carpentry or wood purchases..
  • TWO MEASUREMENT MODES (built-in calibration in the protective case): Wood mode: there are 8 calibration ranges (A, B, C, D, E, F, G, H) based on different types of wood materials, ensuring you get accurate results every time, ranging from 6% to 60%. Building mode: the range for building materials such as concrete and drywall is between 1.5 – 33%. For an accurate read, please stick the stainless steel pins into the surface of the measuring object..
  • EASY-TO-READ MOISTURE READER: The large, easy-to-read backlit LCD screen and user-friendly humidity level indicator allows for quick and easy reading whether the moisture content is Low (GREEN: wood < 12% / building < 17%), Mid (YELLOW: wood 12-15.9% / building 17% - 19.9%) or High (RED: wood 16-60% / building 20%-33%)..
  • TYPE OF TEST OBJECT: Using this moisture meter to measure the moisture content of firewood before barbecue can avoid a lot of smoke when burning. Besides checking firewood, you can also use this humidity t....
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AEROSPRING 3-in-1 Waterproof Multifunction Digital Meter, Measures Electrical Conductivity (EC), pH and Temperature Functions Specially Designed for Hydroponic Systems

  • 3 in 1: EC and pH are vital measurements in Hydroponic systems. With the AEROSPRING 3-in-1 Multifunction Digital Meter you can accurately measure EC, pH and temperature values, accurate to +/- 2% EC, +/- 0.01 pH: and Temp: 0.9F. Comes with a lanyard..
  • Automatic Calibration: Featuring three-point calibration, the meter can automatically identify calibration solutions of pH 4.00, pH 6.86 and pH 9.18. Included 3-pack pH buffer solution (4.00, 6.86 and 9.18). EC calibration solution not included. Recommended to calibrate every 4-6 weeks for accurate measurements..
  • High Accuracy: Highly sensitive probe gives you a full measurement range of 0-19990μS/cm EC and 0-14 pH, Rsolution 0.01 pH.
  • Multifunction Digital Meter green backlit display ensures you can read the measuring results under any lighting conditions..
  • Important Hydroponic Measurements: EC measures the level of nutrients in your system and gives you a measurement of the quantity of available nutrients, allowing you to use this information to add nutrients to your desired level. pH is the measure of the acidity of a system and determines how plants and other organisms interact with different nutrients..
  • Multiple Uses: Pocket-sized and multi-functional, the AEROSPRING Multifunct....
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5 in 1 PH Meter, TDS/EC/Salinity/Temp/PH Meter for Water, Digital PH Tester 0.01 High Accuracy Water Testing Kits for Drinking Water, Pools, Fish Tank, and Hydroponics, PH Pen Hydroponics Supplies

  • Includes: 1 x 5 in 1 ph meter(battery include), 1 x user manual, 3 x calibration powder..
  • [ 5-in-1 PH Meter for Water ] : PH meter is designed with 5-in-1 function, which can be measured PH, TDS, EC, SALITY, and TEMPERATURE. Satisfy all your testing requirements and fully test water quality! Get Healthy Pure drinking water or other use water with this 5 in 1 pH meter..
  • [ Easy to Use ] : Just dip the electrode in the target solution then press and hold the MODEL / CAL button for 6 seconds after the readings to stabilize(usually 5~10 Seconds) and the ph meter will automatically calibrate. Digital pH meter uses a 3-point calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18,You can calibrate effortlessly to ensure the accuracy of your measurements..
  • [ High Accuracy & Reliable ] : ±0.01 pH accuracy, 3-point calibration and 0-14 measure range of the digital ph meter sure you get a accurate testing result. High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response..
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