Meters – Central Science Supplies https://centralscience.spiderns.com School and College Science Supplies Tue, 13 Oct 2026 17:24:23 +0000 en-GB hourly 1 https://wordpress.org/?v=7.1.3 LCR METER https://centralscience.spiderns.com/product/lcr-meter/ https://centralscience.spiderns.com/product/lcr-meter/#respond Tue, 13 Oct 2026 17:24:23 +0000 http://centralscience.spiderns.com/product/lcr-meter/ The ES7010 is a high precision LCR meter with basic accuracy 0.15% and maximum measurement frequency 10kHz. The 5-digit 4.3-inch TFT LCD display gives easy reading. The RS-232 interface facilitates in remote control and analysis of measurement results. With its fast measurement speed, wide frequency range and low cost, the ES7000 series are widely used in R&D, IQC, online quality control and automatic test system.

Features:
32-bit core processor
5-digit 4.3-inch TFT LCD display
2 signal source output impedance: 30 Ω, 100 Ω
100 sets memories for internal storage/save
500 memories for U disk storage/save, supports FAT16 and FAT32 files
Save the last parameter settings before power off
Standard interface: RS-232, HANDLER, USB HOST
Optional interface: USB DEVICE, GPIB, headset, FOOT.C foot switch

Specifications:
Test parameter: | Z|, |Y|, C, L, X, B, R, G, D, Q, ?
Test Signal Frequency: 100Hz,120Hz,1kHz,10kHz
Basic Accuracy: 0.15%
Equivalent circuit: Series, Parallel
Mathematical function:Deviation and Percent Deviation
Range mode:Auto, Hold, Manual Selection
Trigger mode:Internal, Manual, External, BUS
Measurement speed: Fast: max.30, Medium: 10, Slow: 3 (times/second) ((?1kHz))
Average times: 1-255
Delay time: 0-60s, step 1ms
Calibration function: Open circuit, Short circuit, Load
Measurement terminal: 5 terminal
Display mode: Direct, ?, ?%, V/I (monitoring tested voltage and current)
Display: 5 digit 4.3-in LCD display

Measurement Signal:
Output impedance: 30 Ω, 100 Ω
Test level: 0.1V, 0.3V, 1V
Test level accuracy: 5%

Measurement display range:
|Z|, R, X:0.01 M Ω – 99.999 M Ω
|Y|, G, B: 0.0001μS – 99.999 μS
C:0.0001 pF – 9.9999 F
L:0.0001 H – 999.99 H
D:0.0001 – 9.9999
Q:0.0001 – 9999.9
(DEG):-179.99 ?-179.99 ?
(RAD):-3.14159 – 3.14159
%:-999.99% – 999.99%

Comparator and interface
Memory: 100 sets memories for internal parameter settings storage/save; 500 sets for U disk parameter settings storage/save
Standard interface: Standard: RS232, USB HOST
Optional interface: USB device, GPIB

General:
Operating environment:0°C – 40°C, 80%RH
Power source: 110/220V≈10%, 47~63Hz
Power consumption: ≈ 30VA
Accessories: 4-terminal Kelvin test clip leads, RS232 cable, power cord, operation manual
Dimensions: 265W*100H*340D mm
Weight: Approx.3.5kg

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PORTABLE APPLICANT TESTER & CHECKER https://centralscience.spiderns.com/product/portable-applicant-tester-checker/ https://centralscience.spiderns.com/product/portable-applicant-tester-checker/#respond Tue, 13 Oct 2026 17:22:31 +0000 http://centralscience.spiderns.com/product/portable-applicant-tester-checker/ (Portable Appliance Tester and Checker). Performs electrical safety tests on portable appliances allowing compliance with EAWA regulations. The unit performs earth bond and insulation tests on both Class 1 and Class 2 appliances, extension leads, IEC and kettle leads etc. The unit is very simple to operate and gives clear, unambiguous pass/fail indications. Complete with test leads, instructions, pass and fail labels, a Tester’s Certificate of Inspection and is fitted with moulded mains plug.
A simple to use PAT machine that allows the user to perform Class 1 and Class 2 insulation tests, earth bond tests at two different current levels and extension lead tests. The compact unit clearly displays the results via coloured LEDs. A single push button initiates all the tests in a 5-second cycle.

Class 1 Earth Bond test
Class 1 and Class 2 Electrical Insulation test
Mains switch and circuitry test
Extension Lead test
IEC lead test
Results are displayed by coloured LEDs. Timed test period.

Comes complete with 100 pass labels, 50 fail labels, Earth Bond Test lead, Extension lead test lead and full instructions including sample inspection certificate.

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MULTIMETER DIGITAL TRUE RMS BENCH TOP https://centralscience.spiderns.com/product/multimeter-digital-true-rms-bench-top/ https://centralscience.spiderns.com/product/multimeter-digital-true-rms-bench-top/#respond Tue, 13 Oct 2026 17:15:08 +0000 http://centralscience.spiderns.com/product/multimeter-digital-true-rms-bench-top/ 80000 count True RMS Bench Digital Multimeter
Dimension / mm: 245Wx220Hx98D
Weight / kg: 1.5

Features:
Large LCD, 80000 count Dual-display, Analog bar 21 sets.
50 measuring functions, with basic DCV, ACV, DCA, ACA, ?, CAP, Hz, TEMP, diode and Continuity measuring function, etc.
18 types of frequency, frequency up to 8MHz, 1800 waveform outputs, 1%~99% duty cycle
Simultaneous measure (AC DC), (AC Hz), (DC dBm), (dBm Hz), (Hz Duty), (? ?)
Auto data update and refresh, auto data hold, auto peak hold.
36-hour dynamic record: MAG, MIN, AVG, MAX-MIN (REL?), (REL%), setting upper & lower limit, timing measurement
AC measuring adopts highly accurate true RMS measurement, with testing frequency bandwidth and AC DC measuring, capable of accurate true RMS measuring of any waveform in AC range
RS-232 interface

DCV
Range: 80mV/800mV/8V/80V/800V/1000V
Accuracy:(0.05% 5)
ACV
Range:80mV/800mV/8V/80V/750V
Accuracy:(0.8% 50)
DCA
Range: 80mA/800mA/8A/20A
Accuracy:(0.2% 10)
ACA
Range:80mA/800mA/8A/20A
Accuracy:(0.8% 20)
Resistance:
Range:800?/8kΩ/80kΩ/800kΩ/8MΩ/80MΩ
Accuracy:(0.3% 5)
Frequency:
Range: 0.5Hz~8MHz
Accuracy:(0.03% 2)
Capacitance:
Range:1nF/10nF/100nF/1uF/10uF/100uF
Accuracy:(2.5% 50)
Temperature Range:-50°~1372° / -58°~2502°
Accuracy:(2.0% 2)
Square Wave Output:
Range:3V / 0.5Hz~5kHz / 1%~99%
Accuracy:0.02%

Special Function:
Diode test
True RMS
AC DC measuring
Continuity alarm
Overloading protection
Input Impedance 10M Ω

Sampling rate: 4times/s; Analog bar40 times/s
AC frequency response: 40Hz-50kHz
Range selection:Auto range
Max. display:80000
Computer interface:RS-232
Accessories: Test lead, Power cord, User manual, Software CD, Temperature probe
Power source: AC110V/220V, 50Hz/60Hz
Meter size :245x220x98mm
Net weight :1.5kg

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POWER METER TWIN IRWIN https://centralscience.spiderns.com/product/power-meter-twin-irwin/ https://centralscience.spiderns.com/product/power-meter-twin-irwin/#respond Tue, 13 Oct 2026 17:07:52 +0000 http://centralscience.spiderns.com/product/power-meter-twin-irwin/ The Irwin Power Meter Twin uses two large back-lit displays which display four important parameters.
1.The voltage across the load (V)
2.The current flowing through the load (A)
3.The power dissipated by the load (W)
4.The amount of energy converted by the load (Wh)
The Powermeter Twin is designed to be used with a low voltage power pack and can accept input voltages in the range 6.5-100V d.c. The load (which may draw up to 20A) is connected to the load terminals.
In addition, the unit may be plugged into the mains for testing the energy use of common domestic appliances. The two sections are completely independent and may be used simultaneously if required.
The display unit has a multipurpose push switch which allows the back-light to be switched on or off (the unit remembers the settings when disconnected) and allows the energy reading to be reset.
The unit displays energy in Wh rather than Joules because a Joule display would quickly overflow. This can be used as a teaching aid (1Wh=3,600J) as well as allowing the pupil to time their power usage and calculate the energy converted in Joules. They can then compare their result with the Powermeter.
Manufactured in the UK

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POWER METER A.C. IRWIN https://centralscience.spiderns.com/product/power-meter-a-c-irwin/ https://centralscience.spiderns.com/product/power-meter-a-c-irwin/#respond Tue, 13 Oct 2026 17:01:04 +0000 http://centralscience.spiderns.com/product/power-meter-a-c-irwin/ The Irwin Power Meter a.c. uses a large back-lit display which displays four important parameters.
1.The voltage across the load (V)
2.The current flowing through the load (A)
3.The power dissipated by the load (W)
4.The amount of energy converted by the load (Wh)
The Powermeter is designed to be plugged into the mains supply. Any mains operated appliance may then be plugged in and voltage, current, power and energy are instantly displayed. The unit operates at any voltage between 80-260V a.c. and will allow currents up to 20A to be drawn.
The display unit has a multipurpose push switch which allows the back-light to be switched on or off (the unit remembers the settings when disconnected) and allows the energy reading to be reset.
The unit displays energy in Wh rather than Joules because a Joule display would quickly overflow. This can be used as a teaching aid (1Wh=3,600J) as well as allowing the pupil to time their power usage and calculate the energy converted in Joules. They can then compare their result with the Powermeter
Manufactured in the UK

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POWER METER D.C. IRWIN https://centralscience.spiderns.com/product/power-meter-d-c-irwin/ https://centralscience.spiderns.com/product/power-meter-d-c-irwin/#respond Tue, 13 Oct 2026 16:59:07 +0000 http://centralscience.spiderns.com/product/power-meter-d-c-irwin/ The Irwin Power Meter D.C. uses a large back-lit display which displays four important parameters.
1.The voltage across the load (V)
2.The current flowing through the load (A)
3.The power dissipated by the load (W)
4.The amount of energy converted by the load (Wh)
The Powermeter is designed to be used with a low voltage power pack and can accept input voltages in the range 6.5-100V d.c. The load (which may draw up to 20A) is connected to the load terminal. The display unit has a multipurpose push switch which allows the back-light to be switched on or off (the unit remembers the settings when disconnected) and allows the energy reading to be reset.
The unit displays energy in Wh rather than Joules because a Joule display would quickly overflow. This can be used as a teaching aid (1Wh=3,600J) as well as allowing the pupil to time their power usage and calculate the energy converted in Joules. They can then compare their result with the Powermeter.
Manufactured in the UK

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Demonstration COULOMB METER Unit https://centralscience.spiderns.com/product/demonstration-coulomb-meter-unit/ https://centralscience.spiderns.com/product/demonstration-coulomb-meter-unit/#respond Tue, 13 Oct 2026 16:45:52 +0000 http://centralscience.spiderns.com/product/demonstration-coulomb-meter-unit/
Enhance Your Electrostatic Experiments with Our Electrostatic Charge Measurement Device
Take your electrostatic experiments to the next level with our Demonstration COULOMB METER Unit. It is the ideal tool for measuring charges in electrostatics, designed to make your experiments more accurate and convenient. This device is not just handy; it’s magnetic, making it easy to set up in your lab.

Key Features of the Demonstration COULOMB METER Unit:

  • High-Visibility LED Display: The Electrostatic measurement device is equipped with a 26 mm high LED display, ensuring that measurements are easily readable even from a distance. This high-visibility feature enhances the overall convenience of using the device.
  • Wide Measuring Range: With a measuring range of +/- 1999 nanoCoulombs (NC), this meter accommodates a variety of charge levels, making it suitable for a wide range of electrostatic experiments. Its versatility ensures that you can use it for various educational purposes.
  • Accuracy and Precision: Our COULOMB METER boasts impressive accuracy, with measurements better than 1%. Its droop rate is better than 5 digits per minute, ensuring reliable and consistent results in your experiments.
  • Multiple Power Options: You can power the meter using 4 × 1.5V Mignon cells (included), ensuring that it’s ready to use right out of the box. Alternatively, it features a 5.5 mm hollow DC jack for external power supply (6V/500mA), giving you flexibility in how you power the device.
  • Durable Construction: Housed in sturdy plastic ABS material in an attractive green color with yellow imprint, the COULOMB METER is built to last. Its dimensions of approximately 160×120×45 mm make it compact and easy to integrate into your lab setup.

Dimensions:

  • Device Dimensions: Approx. 160×120×45 mm
  • Device Mass: Approx. 380 g

Enhance your electrostatic experiments with our Demonstration COULOMB METER. Whether you’re a student or educator, this device will be an invaluable addition to your lab equipment. Please note that this meter is designed exclusively for educational purposes and is not intended for industrial or commercial applications.

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AMMETER DUAL RANGE DC https://centralscience.spiderns.com/product/ammeter-dual-range-dc/ https://centralscience.spiderns.com/product/ammeter-dual-range-dc/#respond Tue, 13 Oct 2026 16:37:25 +0000 http://centralscience.spiderns.com/product/ammeter-dual-range-dc/ Ampere meter Dual Range DC
Two scales amperemeter to measure DC Current in electrical work and student experiments
Size: Overall 160 x 110 x 55mm
Measuring Scale: 0-500mA/ 0-5A
Scale length: ≈ 55mm
Material: Plastic
Zero point position: Left
4mm socket terminals
Overload protection and zero adjuster

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Versatile Student Analogue Multimeter https://centralscience.spiderns.com/product/versatile-student-analogue-multimeter/ https://centralscience.spiderns.com/product/versatile-student-analogue-multimeter/#respond Tue, 13 Oct 2026 16:34:18 +0000 http://centralscience.spiderns.com/product/versatile-student-analogue-multimeter/ Discover Precision: Versatile Student Analogue Multimeter for Accurate Measurements
Introducing our Versatile Student Analogue Multimeter, a versatile instrument designed for precision in measuring voltage and current, both DC and AC. This multimeter, ideal for students, stands out with its unique features, including electronic overload protection in all measuring ranges with an LED display for control—eliminating the need for fuses. With a large, robust design, tilted for optimal readability, and a transparent base for one-handed operation, this multimeter is the perfect companion for educational and training purposes.

Key Features of the Versatile Student Analogue Multimeter

  • Dimensions: Compact design measuring approximately 200x140x100 mm, ensuring portability and ease of use.
  • Electronic Overload Protection: Innovative electronic overload protection in all measuring ranges, coupled with a control LED display, eliminating the hassle of dealing with fuses.
  • Robust and Tilted Design: The large, robust design with a tilted position enhances durability and readability, making it easy for students to observe measurements.
  • Transparent Base with Grip: The transparent base features a recessed grip, allowing for comfortable one-handed operation, facilitating practical learning experiences.
  • Versatile Voltage Measurement: The multimeter offers voltage measurement options in both AC and DC, including ranges of 1, 100, 300 mV, 1, 3, 10, and 30 V.
  • Current Measurement Capabilities: Current measurement ranges cover 100 μA, 10, 30, 100, 300 mA, 1, and 10 A, catering to various experimentation needs.
  • Accurate and Reliable: Boasting typically 1.5% accuracy, the multimeter provides reliable readings for educational and training purposes.
  • Large Selector Switch: The multimeter features a large, robust selector switch, ensuring ease of use and precise measurement selection.
  • Zero Point Center Selection: The ability to select the zero point centre by switch position adds to the versatility of this multimeter.
  • Power Supply: Requires 4 x 1.5 V Mignon batteries (not included), providing convenient and portable power.
  • Compact and portable design for easy handling and transport.
  • Electronic overload protection with LED display for control, eliminating the need for fuses.
  • Sturdy construction with a tilted position for durability and optimal readability.
  • Transparent base with a recessed grip facilitates one-handed operation, enhancing practicality.
  • Voltage measurement options in both AC and DC, covering a wide range of voltage values.
  • Current measurement ranges catering to various experimentation needs, ensuring versatility.
  • High accuracy of typically 1.5%, providing reliable readings for educational purposes.
  • Large, robust selector switch for ease of use and precise measurement selection.
  • Zero point centre selection enhances the versatility of the multimeter.
  • Power supply through 4 x 1.5 V Mignon batteries, ensuring convenient and portable usage.

Unleash the precision of our Student Analogue Multimeter, designed for accuracy and reliability in educational settings. Explore its versatile features and make your experiments more insightful and engaging!

Note: Items provided are models for education and training purposes. Use according to manufacturers’ instructions, prioritizing safety.

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GALVANOMETER https://centralscience.spiderns.com/product/galvanometer/ https://centralscience.spiderns.com/product/galvanometer/#respond Tue, 13 Oct 2026 16:20:32 +0000 http://centralscience.spiderns.com/product/galvanometer/ Galvanometer
DC current measuring instrument on a small scale. Dual Scale that is easy to read
Size: Overall 160 x 110 x 55mm
Measuring scale: -50uA to 50uA
Accuracy: 2.5% on full deflection
Scale length: 75mm
Material: Plastic
Internal resistance approximately 1200 ohm
4mm socket terminals
Complete with overload protection, with zero adjuster
weight: 0.247 kg

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