Extech SD700 Barometric Pressure/Humidity/Temperature Data Logger

The SD700 is built to provide comprehensive environmental data logging in a compact form. It contains integrated sensors that measure barometric pressure, relative humidity, and air temperature. These readings are continuously displayed on a triple-segment LCD so you can see all values at once—no cycling through menus needed. Users can configure the data sampling interval (from 5 seconds up to 600 seconds) to balance detail versus storage usage. The unit writes each reading with a date/time stamp to an inserted SD memory card in Excel-friendly format, enabling straightforward data transfer to a PC for analysis. The SD700 can run on six AAA batteries or via an AC adapter, and comes with mounting hardware for fixed installations. It includes features such as low-battery indication, multiple units for pressure display (hPa, mmHg, inHg), and tilt stand orientation.

Features

• Triple simultaneous display — shows barometric pressure, temperature, and relative humidity side by side.
• Multiple pressure units — supports hPa, mmHg, and inHg for pressure readings.
• Data logging to SD card — stores timestamped readings in Excel-compatible format.
• Selectable sampling intervals — options including 5, 10, 30, 60, 120, 300, and 600 seconds.
• Wide measurement ranges — pressure from ~10 to 1100 hPa, humidity from ~10% to 90% RH, temperature from 0–50 °C (32–122 °F).
• Resolution & accuracy — e.g. pressure resolution 0.1 hPa, humidity accuracy ±(4% of reading + 1%), temperature accuracy ~±0.8 °C.
• Power flexibility — runs on six AAA batteries or via AC adapter.
• Mounting and portability — includes mounting bracket, tilt stand, and handheld use.
• Low battery alert & data protection — warns when battery is low; ensure safe shutdown before removing SD card.

Includes

• The Extech SD700 is a handheld datalogger that monitors and records barometric pressure, relative humidity, and air temperature over time. It features a triple LCD display to show all three parameters simultaneously, stores data with timestamps on an SD card in Excel-compatible format, and supports adjustable logging intervals. With both battery and AC power options, it’s well suited for environmental monitoring in labs, storage areas, and controlled spaces.