The Keithley 155 Null Detector Microvoltmeter is a high-performance instrument engineered for precise voltage measurements and null detection. With its exceptional sensitivity and minimal noise, it excels in applications such as calibration processes, research endeavors, and component testing. The device incorporates multiple measurement ranges and filtering capabilities, enabling users to fine-tune performance according to specific measurement requirements. Its robust design and reliable performance make it a valuable tool for engineers and scientists requiring accurate and dependable voltage measurements.
Product Condition & Availability
Keithley 155 Null Detector Microvoltmeter is in excellent working condition and has been thoroughly tested for performance and reliability. We offer both new and professionally refurbished options, depending on availability and customer preference.
Keithley 155 Null Detector Microvoltmeter
- Repair Support & OEM Spare Parts
- University and Research Discounts
- 100% Verified & Tested Equipment
- Rental Units Available
The Keithley 155 Null Detector Microvoltmeter is a precision instrument designed for accurate voltage measurements and null detection. It features high sensitivity and low noise, making it suitable for a variety of applications including calibration, research, and component testing. The device offers multiple ranges and filtering options to optimize performance in different measurement scenarios.
$570.00
instock
In stock

FedEx, UPS, USPS
Shipping world-wide available:
DHS, FedEx International
Integrated Solutions & Deployment Support
Beyond individual products, Aumictech provides end-to-end solutions for manufacturing line deployment and test station setup. Our team can assist with system integration, configuration, and equipment selection tailored to your production requirements.
Trusted Industry Experience
With over a decade of experience, Aumictech is a recognized leader in RF and optical test equipment sales and services. All units are supported by our in-house calibration and repair facility based in Downingtown, PA, ensuring technical reliability and long-term value.
Customer Commitment
We’re committed to exceptional customer service, offering a 15-day return or replacement (ROR) policy for peace of mind. Our team is always available to assist with pre- and post-sale support.
Fast Shipping & Flexible Payments
We offer rapid global shipping through FedEx, UPS, and DHL, with most orders dispatched within 1–3 business days. Multiple secure payment options are available, including PayPal, ACH, wire transfers, and major credit cards.
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