# Extech SD910 3-Channel DC Voltage Datalogger

# Extech SD910 3-Channel DC Voltage Datalogger

## Key Features At A Glance

-   Triple LCD simultaneously displays three DC voltage (mV) channels
-   Date/time stamps and stores readings to an SD card in Excel format for easy PC transfer
-   Selectable sampling rate: 2, 5, 10, 30, 60, 120, 300, 600 seconds, or Auto
-   Two DC mV ranges: 300.0 mV (0.1 mV resolution) and 3000 mV (1 mV resolution)
-   Stores approximately 2.7 million readings on a 4 GB SD memory card
-   Ships with six AAA batteries, SD card, universal AC adaptor (US/EU/UK/AUS plugs), and mounting bracket

The Extech SD910 is a 3-channel DC voltage datalogger that lets technicians monitor and record DC millivolt values from three external sensors, transducers, and other sources using a single meter. It captures the time and date of each reading and presents all three channels at once on a large triple LCD display, recording data to an SD card in an Excel-ready format for transfer to a PC for analysis, trending, and archiving.

The SD910 supports a broad range of low-level signal monitoring tasks. Listed applications include pH sensors, current probes, photovoltaic studies, battery studies, process control, R&D, medical and pharmaceutical work, and environmental studies — settings where multiple low-voltage sources must be tracked and logged over time.

ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, so the instruments we list are on hand and ready to ship.

## Brand Heritage

Extech Instruments has produced portable test and measurement instruments since 1971 and became part of FLIR Systems in 2007, after which Extech-branded products have been published under FLIR Systems.

## Accessories Supplied

-   Six (6) AAA batteries
-   SD memory card
-   Universal AC Adaptor with multi-plugs (US, EU, UK, AUS)
-   3 input connect sockets
-   Mounting bracket

## Product Core & Specifications

Specification

Value

DC Voltage (mV)

300.0 mV range (Max. Resolution 0.1 mV)

±(0.5% + 0.2 mV)

3000 mV range (Max. Resolution 1 mV)

±(0.5% + 2 mV)

Memory

Approx. 2.7M readings using 4GB SD memory card

Dimensions

5.2 x 3.1 x 1.3 in. (132 x 80 x 32 mm)

Weight

7 oz (199 g)

## 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:** 419.99 USD
- **Vendor:** Extech
- **Type:** Data Log
- **Tags:** Data Logger, Extech, Manufacturers, Meters & DAQ, product_manual_group_2, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 419.99 USD | In stock |

## Images

- Extech SD910 3-Channel DC Voltage Datalogger

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> Source: [ValueTronics](https://valuetronics.com/products/sd910-extech-data-logger-new)
> Updated: 2026-06-20