ReviewsMeasuring Systems

Apogee Instruments MQ-500 Full-Spectrum Quantum PAR Meter & Telescopic Wand Bundle - Digital PPFD Meter for LED Greenhouse Grow Lights, Sunlight, & Plant Monitoring

  • FOR SCIENTISTS & SERIOUS GROWERS - Designed by world-renowned crop physiologist, Bruce Bugbee, PhD, the MQ-500 full-spectrum quantum meter is the premium tool of choice among leading scientists and growers for accurately measuring the photosynthetically active radiation (PAR) from all light sources. Package includes an AM-310 telescopic sensor wand that extends up to 33 inches for measuring hard-to-reach places and a neoprene carrying case..
  • MEASURING PAR IS CRITICAL - An accurate PAR meter is critical for measuring the intensity of light used in the precision growing of plants and other photosynthetic organisms in greenhouses, growth chambers, farms, gardens, aquariums, and additional agricultural systems..
  • QUALITY QUANTUM METER - Unlike cheaper LUX or footcandle sensors which are sometimes marketed as grow light meters, but are meant for measuring light for human vision, our meters feature a laboratory-grade PPFD (photosynthetic photon flux density), or “quantum,” optical detector precisely calibrated to measure the light intensity in µmol m-2 s-1 of the specific color wavelengths emitted by LEDs, HPS, MH, sunlight, and other light sources utilized by plants for photosynthesis..
  • EXTREMELY ACCURATE & STABLE - Precisely measures and combines the in....
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Digital Handheld Manometer HVAC Air Vacuum/ Gas Differential Pressure Gauge Meter Tester 11 Units with Backlight, ±13.78kPa ±2PSI, 1-2 Pipes Ventilation Air Condition System Measurement

  • Measures air pressure of the single pipe or differential pressure of 2 pipes. Has 11 selectable units of measurement kPa, psi, kgfcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O..
  • Best for measuring the ventilation and air condition systems. Widely used for gas measurement, calibration, and any troubleshooting of any gas pressure systems..
  • Max / minimum / Average reading record function.
  • Low battery display and Auto power off set up function.
  • Differential pressure measurement,Large LCD backlit dual display.
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Small Aquarium Underwater Ambience with Very Light Bubbling

  • FOR SCIENTISTS & SERIOUS GROWERS - Designed by world-renowned crop physiologist, Bruce Bugbee, PhD, the MQ-510 full-spectrum underwater quantum meter is the premium tool of choice among leading scientists and serious growers for accurately measuring the photosynthetically active radiation (PAR) underwater..
  • MEASURING PAR IS CRITICAL - An accurate PAR meter is critical for measuring the intensity of light used in the precision growing of plants and other photosynthetic organisms in greenhouses, growth chambers, farms, gardens, aquariums, and additional agricultural systems. Our underwater quantum meters are specifically designed to measure the intensity of light underwater for biological, chemical, and physical processes in natural waters and aquariums..
  • UNDERWATER ACCURACY - Underwater PAR measurements can read low when a quantum sensor is calibrated for air. The MQ-510 applies an immersion effect correction factor to get instant, accurate measurements underwater. Precisely measures and combines the intensity of all photons between 400 and 700 nm to give a single PAR reading in µmol m-2 s-1 within 5 % uncertainty. Unlike hobby-grade PAR meters, our meter has a ....
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Tightvac 3X 0.12L - Hydroponics, Vacuum Seal, Smell Proof

  • The resolution of ORP tester is 1 mv, very high sensitivity..
  • The tester is made of high quality electronic components to ensure high accuracy..
  • Large and clear LCD, easy to read and accurately measuring functions..
  • Suitable for water sources, aquariums, hydroponics, swimming pools and other water systems..
  • Compact and portable pen design,easy to operate and storage..
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Tyrone ER14250 Battery [ 1/2 AA Size ][ 10 Pack ][ LS 14250 3.6V 1200 mAh Lithium Non Rechargeable ] Batteries Compatible for Dog Watch Fence Collars and Some of Baby Movement Monitor/Alarm Systems

  • 1/2 AA size lithium Thinly Chloride cylindrical cell high energy, high reliability 3.6 volt [non rechargeable].
  • Excellent memory backup power source, low Self discharge Rate gives this cell a 10 year shelf life.
  • Stable voltage and broad temperature range (-60 to +85C).
  • Compatible with some of the measuring instruments and equipment in the laboratory and medical departments.
  • Compatible with dog collar, some of home security systems/ alarm systems/ Baby movement monitor.
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Ground Resistance Meter,HT2302 Digital Ground Earth Resistance Tester with LCD Backlight for Electric Power Communication Laboratory

  • Intelligent Chip: Ground resistance tester, controlled by intelligent microcontroller chip, with high reliability and high accuracy, multiple measurement methods, to achieve fast and accurate measurement results..
  • Digital Backlight LCD Display: It is equipped with a large screen LCD digital display with backlight, which is convenient for users to read the information on the LCD screen..
  • 100 Sets Of Data Storage: It has a data storage function, which can store 100 sets of measurement data, and the data will not be lost when power off, which can facilitate users to query historical data..
  • Applicable Occasion: Suitable for measuring the grounding resistance of various power systems, electrical equipment, anti thunder protection equipment and other grounding systems, and also for grounding voltage measurement..
  • Safety Measurement: Double insulation or reinforced insulation safety structure can be used for precise three wire measurement or simple two wire measurement..
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Dyno-tab Radiator Flush Pouch (Dynotab)

  • Radiator overheating is the #1 cause of roadside breakdown. Protect your cooling system with our new range of cooling system products. They work with all coolants and in water-only systems. Because they use Dyno-tab's unique tablet technology, there's no bottle, spills, measuring or mess! Keep your cooling system in tip-top shape and don't risk a costly and inconvenient breakdown..
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Rockford Fosgate Punch P500-12P 500-Watt 12' All in One Powered Subwoofer System with Built-in Amplifier

  • The P500-12P is a self-contained amplified subwoofer system featuring a single 12″ high output subwoofer in a high output vented enclosure and a built in 500-watt class-D amplifier.
  • Designed for hatchback, sedan, and SUV applications, the P500-12P can be connected via speaker level inputs for connection to factory systems, or traditional line level inputs for aftermarket systems.
  • Featuring adjustable 12db/Octave low pass crossover, built-in adjustable bass boost EQ, hi-level/low-level inputs, built-in 0°/180° phase switch and includes Remote bass level control.
  • Precision constructed MDF ported wedge enclosure with heat activated vinyl finish, measuring H x W x D1 x D2 15″ x 24.76″ x 10.91″ x 7.71″.
  • Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller.
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LUCHA Underground Gift of the God Championship Title Belt Champion Replica 2mm

  • 【What to use for】The underground wire locator is designed to allow the user to track low voltage cables used for garden and landscape automatic watering systems, and low voltage garden lighting systems. It can also be used to trace other metal cables. Trace and locate underground wires or in-wall wires, the detection depth range is 2 feet and the max. cable length is 2000 feet..
  • 【Basic Functions】Tracking buried and hidden wires, detecting cable break, locating alarm, sound & computer wires, measuring wire depth, and pinpointing drill sites..
  • 【External Earphones】Equipped a pair of 3.5mm earphones that can be connected to the the receiver earphone jack to improve efficiency in a noisy environment..
  • 【White LED Flashlight&Power Supply】Designed with white LED flashlight for auxiliary lighting in the darkness. The transmitter and receiver are both powered by the 3.7V rechargeable lithium battery, both with low battery indicator..
  • 【Warm Tip】This device is mainly to locate non-energized Cable, or low-voltage situation less than 24V .Only for Wires & Cables,Not for Sprinkler Valves!!.
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Digital Handheld Manometer, URPRO HVAC Air Vacuum/Gas Differential Pressure Gauge Meter Tester ±13.78kPa ±2PSI, 11 Units w/Backlight, 1-2 Pipes Ventilation Air Condition System Measurement

  • SMART DUAL INPUT – URPRO manometer can easily measure air pressure of the single pipe or differential pressure of 2 pipes with its dual input probes..
  • RANGE & RESOLUTION – Measures +/- 2.000psi (0.001 resolution) with accuracy +/-0.3% in full scale.
  • 11 SELECTABLE MEASURE UNITS – InH2O, Psi, Mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, KGCM2, Bar.
  • MAX/ MIN/ AVG, BACKLIT, DATA HOLD, AUTO OFF – Tailor-made with all of these useful features for your work requirements!.
  • WIDE APPLLICATIONS - Perfect for measuring ventilation and air conditioning systems. And widely used for gas measurement, calibration, and troubleshooting of any gas pressure systems..
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Multi Angle Tool,Multi Angle Measuring Ruler,6-Sided Angle Measurement Tool,Multi Angle Aluminum Alloy Measuring Ruler,Multifunctional Measuring Ruler,Layout Tool for Handymen, Builders, Craftsmen.

  • ✎High-quality materials: The multi-angle measuring ruler is made of high-quality 5mm aluminum alloy, with durable metal knobs and bolts, and the surface is coated with a black oxide layer. The six-fold measuring tool is rust-proof and will not rust. This universal angle The ruler is stronger and more durable than the plastic ruler. Under normal storage, it can last a long time in your toolbox..
  • ✎Easy to use: The angle ruler has six pieces of ruler and metal knobs, with 3 positioning holes. You can adjust the six metal knobs to the shape you need, then lock it, and then install the ruler on On the material that needs to be cut, quickly draw the size and cut it, which saves your time and improves your work and productivity..
  • ✎Laser engraving: This angle measuring instrument is scaled with special laser engraving technology. It is very wear-resistant and can be used for a long time without worrying about corrosion. There are two displays in metric and imperial systems, which are very suitable for precise angle measurement. Other rulers are different. , They will not wear out and disappear due to the use of too long scale, and the digital scale will remain on the ruler forever..
  • ✎Easy to carry: The six-fold angle measuring ruler is an excellent port....
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