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Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale: Specific Gravity & Salt Percent

  • DESIGNED FOR - testing the concentration of saltwater, help you to monitor and control the concentration of salt water..
  • WIDELY USE - Can be used for Aquariums, Marine Monitoring, Agricultural, Gardening & Educational Purposes..
  • EASY , ACCURATE & AFFORDABLE - This refractometer is more accurate and easier to use than traditional hydrometers, more affordable than digital refractometers..
  • DUAL SCALE -- Provides reading of 0-100PPT(parts per thousand ) and corresponding specific gravity range 1.000 to 1.070. You can get the both result at just one test..
  • AUTOMATIC TEMPERTURE COMPENSATION --The build-in Automatic Temperature Compensation feature makes it get consistently accurate reading, no need to control the liquids temperature deliberately, just make sure it's at roomtemperature ..
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BatteryMINDer 244CEC2 24 Volt- 1/2/4 AMP Battery Charger Lithium LiFePO4 Battery Maintainer and Battery Desulfator - Designed for Trucks Boats RV Generators

  • EIGHT BATTERIES AT A TIME - Maintains up to eight batteries at a time when connected in parallel. Requires the use of user-supplied wiring or....
  • AMBIENT TEMPERATURE SENSOR - Temperature compensation precisely adjusts battery voltage based on temperature sensor readings. This ensures your....
  • EXTENDED BATTERY LIFE - Automatic full time desulfator reverses sulfation (a buildup of lead sulfate crystals) the primary cause of early battery....
  • INCLUDED – Included is Model 244CEC2, 6’ AC cord, 6’ DC cord with quick connector, installed ambient compensation sensor, battery clip cord set....
  • FCC CERTIFIED - Certified by the Federal Communications Commission and California Energy Commission Compliant..
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East Tester Benchtop Multimeter ET1240 4-1/2 Digit Digital Multimeter Voltage Tester

  • Using 3.5 inch TFT LCD display (resolution 320*480), the brightness of the screen can be adjusted. Language switching between Chinese and English. Two-parameter display can display two parameters of the same input signal..
  • Overrange display: 120% of range. Measurement of AC/DC Voltage, AC/DC Current and 2/4 Line Resistance. The maximum DC current is 10A and the maximum DC voltage is 1000V. External calibration function to support user self-calibration..
  • Periodic and frequency measurements, maximum frequency 20 MHZ. Capacitance measurement, maximum 10 mF. True RMS AC voltage and AC current measurements, bandwidth up to 100 kHz..
  • Optional manual or automatic range. Ten Mathematical Functions: MX+B, MAX, MIN, Average, dB, dBm, REL, Hold, Limit Comparison, Statistics. Supporting a variety of sensors: 10 thermocouples, 4 thermal resistors..
  • Built-in temperature sensor for cold-end compensation, support automatic and manual compensation. Data Memory Storage and Reading Function for Easy Viewing of Data Information. Supporting SCPI protocol and providing programming documentation..
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Weighing Sensor Transmitter Tension Sensor Transducer Weight Transmitter Amplifie Voltage Current Converter Sensor Amplifier Load Cell Amplifier Linear Differential Input Voltage

  • ▶ HIGH SENSITIVITY -- Features high precision, high sensitivity, high stability, and durable in use. Package List: 1 * Load Cell Transmitter.
  • ▶ PRECISELY AMPLIFY -- The internal high-performance device is used to precisely amplify the sensor output signal, internal voltage regulation, constant current bridge, voltage and current conversion, impedance matching, linear compensation, humidity compensation, etc..
  • ▶ CONVERT OUTPUT -- Convert the mechanics and quantity into standard current and voltage signal output, which can be switched from 0~5V/0~10V.
  • ▶ DIRECTLY CONNECTED -- It can be directly connected with the interface of the automatic control device PLC single-chip host computer terminal or computer.
  • ▶ MULTIPLE PROTECTIONS -- With standard signal external zero adjustment, external adjustment gain function, input overload protection, output short circuit protection.
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AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester DO Range 0~20.00 mg/L 0~20.00 ppm

  • LCD Displays DO or Saturation O2 and Temperature simultaneously. Displays Maximum/Minimum value and data hold..
  • Ideal for measuring dissolved oxygen levels and temperature in wide range, aquarium, school teaching experiment, lab sterile environment, aquaculture, scientific research etc..
  • Automatic Temperature Compensation, Manual Salinity (MSC) and Altitude (MAC) Compensation, and degree ℃/℉ switchable. Icon DO O2 and unit mg/L, ppm, %, ℃, ℉ for recognition easy during select function mode. Easy to replace DO probe module by user..
  • Waterproof IP-57 standard and rugged design for field use conveniently. It can float on water..
  • Low battery and consumption indicator (Batteries NOT Included). Auto shut off after 10 minutes of non use. Note: The display could not auto shut off under MAX/MIN mode..
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Beer Wort Refractometer for Homebrewing Beer Dual Scale Specific Gravity 1.000-1.120 and Brix 0~32% Beerbrewing Refractometer Hydrometer with ATC Autoction Temperature Compensation

  • 2 IN 1 REFRACTOMETER: The brix beer Refractometer with dual scales --- Brix meter scale measures drinks or solution sugar concentration widely used in....
  • EASY TO OPERATE: This brix refractometer is easy to use, after calibration, put 2 or 3 drops of sample on prism, and towards to light, quick get the....
  • AUTOMATIC TEMPERATURE COMPENSATION: Beer wort refractometer with ATC function can automatically compensation according to changes in ambient....
  • PERFECT REPLACE BRIX HYDROMETER: This beer refractometer need less sample solution for making or testing sugar drinks, fruit juice, and home....
  • ALUMINUM BODY MATERIAL: The refractometer is made of aluminum and ABS rubber, non-staining, resistant to abrasion and anti-corrosion. Lightweight and....
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Portable Door Lock for Home Security Travel Lock Childproof Security Lock Suitable for Home Hotel School Apartment etc Living Security Device Personal Protection

  • ACCURATE AND RELIABLE: Equipped with premium quality &sensitive probe, water quality tester enables quick and convenient test. Put the probe into....
  • EASY CALIBRATION : Featured with auto temperature compensation which can be adjusted to water temperatures and water quality to give readings almost....
  • MULTIFUNCTIONAL: The digital pH pen is equipped with auto temperature compensation function. TDS meter has lock & auto shut off function(Kindly remind....
  • EASY TO USE：PH tester and TDS meter have sensitive electrode sensor ,simply press "ON". It only takes a few seconds for your result to appear the....
  • WIDE USAGE：These meters are designed small and convenient. PH meter and TD&EC meter can test pH balance, ideal for testing drinking water, swimming....
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Adams 1099 NEC 3 Up Forms 2021 4 Part Laser/Inkjet 1099 Forms with Self Seal Envelopes for 50 Recipients Includes 3 1096 Forms TXA225504-NEC21

  • Get the new 3 up 1099 NEC forms you need to report nonemployee compensation for up to 50 recipients.
  • pack includes 4-part 1099 NEC tax form sets, peel....
  • Use Form 1099 NEC to report all nonemployee compensation to the IRS and your recipients—now in 3 forms per page format for 2021.
  • White 4-Part 1099 NEC forms print 3 to a page on 17 micro perforated sheets with copies A, C, B and C.
  • includes scannable red ink copies required for....
  • forms work with QuickBooks and other accounting software, and Adams Tax Forms Helper Online form filler, the fast....
  • You must mail or eFile your 2020 1099-NEC to the IRS and furnish copies to your recipients by January 31, 2022.
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OMAX 40X-2500X 18MP USB 3.0 Digital EPI-Fluorescence Trinocular Compound Biological Lab Microscope

  • Magnifications: 40x, 64x, 100x, 160x, 250x, 400x, 640x, 1000x, 1600x, 2500x.
  • Microscope Head: - Trinocular viewing head: anti-mould, 45 degrees inclined 360 degrees swiveling, compensation free - Sliding interpupillary adjustment, range 2-3/16inch - 3.0inch (55 mm-75 mm) - Nosepiece: revolving, quadruple - Adjustable diopter ring on both ocular tubes - Photo tube: Inner diameter 23.2mm, height adjustment range: 3/4inch (18 mm).
  • Eyepieces - 3 pairs of eyepieces: WF10X, P16X, WF25X.
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Sangean WR-2 AM / FM-RBDS Wooden Cabinet Digital Tuning Radio (White)

  • Compact Tabletop AM / FM Radio with Wooden Enclosure that is Tuned and Ported for its 3-inch Front-Firing Speaker.
  • Acoustic Bass Compensation for a Richer Bass Response, Rotary Bass and Treble Controls, this system Delivers Warm Room-Filling Audio for its size.
  • 10 Memory Preset Stations (5 AM, 5 FM) Clock and Alarm with HWS (Humane Wake System) (wake by Radio or Buzzer), Adjustable Sleep and Snooze Function.
  • Large easy to read backlit LCD display with dimmer adjustment.
  • Dc-input, aux-input, rec-out, stereo headphone output, AM and FM external antenna connections remote control included.
  • Compact tabletop AM/FM radio with white wooden enclosure and front-firing 3-inch speaker.
  • 7-watt amplifier and acoustic bass compensation system deliver warm, room-filling audio.
  • Advanced RF/IF electronic circuitry clearly reproduces distant AM/FM stations.
  • Full-range adjustable treble and bass controls.
  • Auxiliary input jack for connecting iPod or MP3 player.
  • measures 9.5 by 4.5 by 6 inches (W x H x D).
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