# Siglent SDM3055 5½ Digit Dual-Display Digital Multimeter # Siglent SDM3055 5½ Digit Dual-Display Digital Multimeter ## Key Features At A Glance - 5½-digit resolution (240,000 counts) with dual-display and True-RMS AC voltage and current measurement - Up to 150 readings per second measurement speed - DCV to 1000 V, ACV to 750 V, DC/AC current to 10 A, 2/4-wire resistance to 100 MΩ - Capacitance 2 nF–10000 µF, frequency 20 Hz–1 MHz, diode, continuity, plus TC and RTD temperature - USB Host and 10/100 LAN standard; USB-GPIB adapter optional for automated test integration - SCPI remote control compatible with mainstream multimeter command sets; EasyDMM PC software - 1 Gb NAND flash mass storage for configuration and data files; 4.3" 480×272 TFT-LCD - Scanner Card SC1016 option (SDM3055-SC) adds 12 multipurpose plus 4 current scanning channels The SIGLENT SDM3055 is a 5½-digit dual-display digital multimeter offering 240,000-count readings resolution. The SDM3055/SDM3055-SC is designed for high-precision, multifunction, and automatic measurement, pairing a broad measurement set with a 4.3-inch TFT-LCD and dual-display operation, a built-in front-panel help system, and file management with U-disc and local storage. Application fields include research and development laboratories, repair and maintenance, calibration laboratories, automatic production test, and general bench-top use. The dual-display and built-in help system support both interactive bench work and automated test environments. ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, and each new unit is fulfilled directly from that facility. ## Compare Other Models in This Series The SDM3055 is offered in two configurations of the same 5½-digit digital multimeter: the SDM3055 and the SDM3055-SC. Both share identical core measurement performance — 240,000-count resolution, dual-display, True-RMS AC voltage and current, and up to 150 readings per second — differing in scanning capability. Each configuration provides the full SDM3055 measurement set across DC and AC voltage and current, 2/4-wire resistance, capacitance, frequency, period, diode, continuity, and TC/RTD temperature, along with standard USB Host and LAN interfaces and SCPI remote control. Each model below links to its own dedicated product page with condition-matched pricing for the new configuration you select. Review the specific model page to confirm the exact configuration before ordering. The base SDM3055 delivers the complete measurement set — DCV, ACV, DCI, ACI, 2/4-wire resistance, capacitance, frequency, period, diode, continuity, and TC/RTD temperature — as a bench multimeter supplied without the Scanner Card SC1016. The two configurations differ by the Scanner Card SC1016: it is not included with the SDM3055 and is included with the SDM3055-SC. The SC1016 multiplexer adds 12 multipurpose channels plus 4 current channels supporting DCV, ACV, DCI, ACI, 2-wire and 4-wire resistance, capacitance, frequency, diode, continuity, and temperature. See the comparison table for the configuration breakdown, including which model carries the scanner card and the resulting multi-point measurement channel counts. Model Digits Max Reading Rate DC Voltage Range **SDM3055** 5½ (240,000 counts) 150 rdgs/s 200 mV - 1000 V SDM3055-SC 5½ (240,000 counts) 150 rdgs/s 200 mV - 1000 V Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Power Cord -1 - USB Cable -1 - Quick Start -1 - Warranty Card -1 - EasyDMM Software - Test Leads and Alligator Clips -2 ## Product Core & Specifications Specification Value DC Voltage Accuracy (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) 200 mV 0.015 + 0.004 2 V 0.015 + 0.003 20 V 0.015 + 0.004 200 V 0.015 + 0.003 1000 V 0.015 + 0.003 DC Current Accuracy (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) 200 μA (load < 8 mV) 0.055 + 0.005 2 mA (load < 80 mV) 0.055 + 0.005 20 mA (load < 0.05 V) 0.095 + 0.020 200 mA (load < 0.5 V) 0.070 + 0.008 2 A (load < 0.1 V) 0.170 + 0.020 10 A (load < 0.3 V) 0.250 + 0.010 Resistance Accuracy (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) 200 Ω (1 mA) 0.030 + 0.005 2 KΩ (1 mA) 0.020 + 0.003 20 KΩ (100 μA) 0.020 + 0.003 200 KΩ (10 μA) 0.020 + 0.010 2 MΩ (1 μA) 0.040 + 0.004 10 MΩ (200 nA) 0.250 + 0.003 100 MΩ (200 nA || 10 MΩ) 1.75 + 0.004 Diode & Continuity Test (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) Diode 2.0 V (1 mA) 0.05 + 0.01 Diode 4 V (100 μA) 0.05 + 0.01 Continuity 2000 Ω (1 mA) 0.05 + 0.01 True-RMS AC Voltage Accuracy (1 Year, 23 °C ± 5 °C) — applies to 200 mV / 2 V / 20 V / 200 V / 750 V ranges (% of Reading + % of Range) 20 Hz – 45 Hz 1.5 + 0.10 45 Hz – 20 KHz 0.2 + 0.05 20 KHz – 50 KHz 1.0 + 0.05 50 KHz – 100 KHz 3.0 + 0.05 True-RMS AC Current Accuracy (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) 20 mA, 20 Hz – 45 Hz 1.5 + 0.10 20 mA, 45 Hz – 2 KHz 0.50 + 0.10 20 mA, 2 KHz – 10 KHz 2.50 + 0.20 200 mA, 20 Hz – 45 Hz 1.5 + 0.10 200 mA, 45 Hz – 2 KHz 0.50 + 0.10 200 mA, 2 KHz – 10 KHz 2.50 + 0.20 2 A, 20 Hz – 45 Hz 1.5 + 0.20 2 A, 45 Hz – 2 KHz 0.50 + 0.20 2 A, 2 KHz – 10 KHz 2.50 + 0.20 10 A, 20 Hz – 45 Hz 1.5 + 0.15 10 A, 45 Hz – 2 KHz 0.50 + 0.15 10 A, 2 KHz – 10 KHz 2.50 + 0.20 Additional Wave Crest Factor Error (non-Sine, frequency < 100 Hz) Crest coefficient 1 - 2 0.05 (% Range) Crest coefficient 2 - 3 0.2 (% Range) Frequency / Period Accuracy (1 Year, 23 °C ± 5 °C) — range 200 mV ~ 750 V (% of Reading + % of Range) 20 Hz – 2 KHz 0.01 + 0.003 2 KHz – 20 KHz 0.01 + 0.003 20 KHz – 200 KHz 0.01 + 0.003 200 KHz – 1 MHz 0.01 + 0.006 Capacitance Accuracy (1 Year, 23 °C ± 5 °C) — (% of Reading + % of Range) 2 nF (200 nA) 3 + 1.0 20 nF (200 nA) 1 + 0.5 200 nF (2 μA) 1 + 0.5 2 μF (10 μA) 1 + 0.5 200 μF (100 μA) 1 + 0.5 10000 μF (1 mA) 2 + 0.5 Temperature Accuracy (1 Year, 23 °C ± 5 °C, not including probe error) RTD α = 0.00385 (-200 °C ~ 660 °C) 0.16 °C TC B (0 °C ~ 1820 °C) 0.76 °C TC E (-270 °C ~ 1000 °C) 0.5 °C TC J (-210 °C ~ 1200 °C) 0.5 °C TC K (-270 °C ~ 1372 °C) 0.5 °C TC N (-270 °C ~ 1300 °C) 0.5 °C TC R (-270 °C ~ 1768 °C) 0.5 °C TC S (-270 °C ~ 1768 °C) 0.6 °C TC T (-270 °C ~ 400 °C) 0.5 °C Measurement Characteristics DC Voltage Input Resistance 200 mV & 2 V range: 10 MΩ or >10 GΩ selectable; 20 V, 200 V, 1000 V range: 10 MΩ ± 2% DC Voltage Input Bias Current < 90 pA, 25 °C DC Voltage Input Protection 1000 V on all ranges DC Voltage CMRR 120 dB (1 KΩ unbalanced resistance in LO lead, max ± 500 VDC) DC Voltage NMRR 60 dB at “slow” measurement rate (20 dB added if “AC” filter open) Resistance Testing Method 4-wire resistance or 2-wire resistance selectable Resistance Input Protection 1000 V on all ranges DC Current Shunt Resistor 200 μA & 2 mA: sampling voltage < 8 mV; 1 Ω for 20 mA / 200 mA; 0.01 Ω for 2 A / 10 A DC / AC Current Input Protection Rear panel: accessible 10 A, 250 V fast-melt fuse; Internal: 12 A, 250 V slow-melt fuse True-RMS AC Voltage Measurement Method AC coupled true RMS measure – up to 1000 V DC bias permitted on every range AC Voltage Input Impedance 1 MΩ ± 2% in parallel with < 100 pF on all ranges AC Voltage Wave Crest Factor ≤ 3 at full scale AC Filter Bandwidth 20 Hz ~ 100 KHz AC Voltage CMRR 60 dB (1 KΩ imbalance resistance in Lo lead, < 60 Hz, max ± 500 VDC) True-RMS AC Current Max Input < 10 A (include DC component) Continuity / Diode Measurement Method 1 mA ± 5% constant-current source or open-circuit voltage Continuity Threshold Adjustable Frequency / Period Measurement Method Reciprocal-counting technique, AC coupled input Capacitance Connection Type 2-wire > **Important:** For continuous current higher than DC 7 A or AC RMS 7 A, 30 seconds off after 30 seconds on is recommended. > **Important:** To avoid electrical shock and personal injury, do not use the product to measure signals that exceed the published specification. > **Important:** The Scanner Card SC1016 is available only for the SDM3055-SC model (the standard SDM3055 does not accept it). > **Important:** Standard interfaces are USB Host and LAN; the USB-GPIB adapter is an optional accessory. > Recommended pairing: add the SIGLENT Scanner Card SC1016 (SDM3055-SC) for 12 multipurpose plus 4 current scanning channels covering DCV, ACV, DCI, ACI, resistance, capacitance, frequency, diode, continuity, and temperature. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 857.0 USD - **Vendor:** SIGLENT - **Type:** Data Log - **Tags:** product_manual_group_3 ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 857.00 USD | In stock | ## Images - Siglent SDM3055 5½ Digit Dual-Display Digital Multimeter --- > Source: [ValueTronics](https://valuetronics.com/products/sdm3055-sc-siglent-data-logger-new) > Updated: 2026-06-20