Digital Multimeter
Product Code : SCL-PLE-11776
The StemAids Digital Multimeter (DMM) is a high-impedance electronic measuring instrument engineered for the empirical study of electrical circuits and component health. Optimized for Secondary and University-level physics and electronics, this multifunction tool replaces separate analog meters with a single, high-resolution digital interface. Manufactured to ISO 9001:2015 standards, it facilitates the quantification of Voltage, Current, and Resistance with superior accuracy and overload protection within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Display Interface |
321 Digit LCD (Max reading 1999) with backlight |
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DC Voltage Range |
200mV to 600V (Multiple selectable ranges) |
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AC Voltage Range |
200V to 600V (True RMS variants available) |
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DC Current Range |
200μA to 10A (Fused protection) |
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Resistance Range |
200Ω to 2MΩ (Ohms) |
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Additional Testing |
Diode Test, Continuity Buzzer, and Transistor (hFE) Check |
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Input Impedance |
>10MΩ (Minimizes circuit loading errors) |
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Safety Compliance |
CAT II / CAT III (Overvoltage category protection) |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Circuit Parameter Interface: Facilitates student visualization of invisible electrical quantities (V,I,R), supporting Electromagnetism and Electronics Module 101.
- Electrical Quantification: Enables the physical study of Ohm’s Law, allowing learners to apply measurement techniques to verify V=IR and calculate power dissipation (P=VI).
- Diagnostic Analysis: Supports the analysis of circuit failures by using the continuity buzzer to identify open circuits or shorted components.
- Accuracy Evaluation: Allows students to evaluate the "loading effect" by comparing measurements made with high-impedance DMMs against traditional moving-coil analog meters.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring shock-resistant rubber holsters and individual anti-static packaging to protect sensitive internal A/D converters.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a User Safety Manual highlighting proper fuse replacement.
- Durability: Tropicalized design featuring high-quality PCBs and moisture-resistant internal shielding, ensuring low "digital drift" in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Digital Multimeter directly ensures vertical manufacturing control:
- In-House Reference Calibration: Every unit is batch-tested against secondary standards to ensure the DC voltage accuracy is within ±0.5%+2
- Internal Protection Control: Direct oversight of the fuse circuitry ensures that the 10A and mA inputs are correctly protected against accidental student surges.
- Direct Factory Spares Availability: Guaranteed availability of high-quality test leads (probes), replacement internal batteries (9V), and fast-blow ceramic fuses.
- Manufacturing Control: Direct oversight of the rotary switch assembly ensures a low-contact resistance and a long mechanical life, rated for thousands of switching cycles.
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