Yes. The RKI 81-SDM3R103 (SDM-3R calibration station) automates the routine service of GX-3R and GX-3R Pro portable gas monitors — it can automatically charge, bump test, calibrate, and run alarm checks, and it turns the detector on and off for you. It works stand-alone with no PC required, storing every record automatically, or connected to a computer for advanced management. For safety teams that need documented, repeatable calibration and bump-test records without doing each step by hand, it's a strong fit. It includes free shipping at Industrial Safety Products.

The RKI SDM-3R (SKU 81-SDM3R103) is a docking and calibration station for the RKI GX-3R and GX-3R Pro portable gas monitors. It's a maintenance tool that automatically charges, bump tests, calibrates, and alarm-checks the instrument, storing all Bump Test, Calibration, and Alarm Check records for later upload. It can be used stand-alone (no PC required) or connected to a computer via USB for PC-controlled management.

The RKI 81-SDM3R103 kit includes the SDM-3R calibration station with 1 solenoid, a demand flow regulator, a 58AL calibration gas cylinder (4-gas H2S/CO/CH4/O2), a cylinder holder, an AC adapter, a USB flash drive, a USB cable (Type A to Type B), and tubing. This makes it a ready-to-use, single-cylinder calibration setup for GX-3R monitors. It ships with free shipping from Industrial Safety Products.

Both automate calibration, bump testing, and charging of GX-3R (Pro) monitors. In stand-alone mode, the SDM-3R needs no PC — it runs charge, bump, calibration, and alarm-check cycles on its own and saves records to the included USB flash drive (up to 200 calibrations, 214 bump tests, or 469 alarm checks). In PC-controlled mode, you connect it by USB and use the SDM Docking Station controller software to service and configure instruments, archive data to a computer or network location, and store an unlimited number of records.

The RKI SDM-3R (81-SDM3R103) is compatible with both the RKI GX-3R and the GX-3R Pro portable gas monitors. It is designed specifically to charge, bump test, calibrate, and alarm-check these instruments; it is not a universal docking station for other models.

Up to 10 SDM-3R modules can be linked together and managed as one system, and its modular snap-together design lets multiple stations share a single set of calibration equipment. The stations can also be manifolded together to reduce the number of demand flow regulators and gas cylinders required — helpful for fleets of GX-3R monitors serviced at one bench.

In stand-alone mode, the RKI SDM-3R stores up to 200 calibrations, or 214 bump tests, or 469 alarm-check records, saved to the included USB flash drive. When run in PC-controlled mode with the included SDM Docking Station software, it stores an unlimited number of records and can archive Bump Test, Calibration, and Alarm Check data to a computer or network location.

The RKI SDM-3R runs on the included AC adapter (100–240 VAC, 47–63 Hz input; 5.99 VDC, 2A output), so it works on standard mains power worldwide. It is rated for indoor use only, at 0 °C to 40 °C and below 95% relative humidity, non-condensing. The station carries a 1-year warranty.

Yes. The RKI 81-SDM3R103 kit ships with a 58AL calibration gas cylinder containing a 4-gas mix of H2S, CO, CH4 (combustible/LEL), and O2, plus a demand flow regulator and a cylinder holder. The SDM-3R station itself supports 3 separate gas inputs (5 ports total: 3 calibration gas, 1 fresh air, 1 exhaust), so it can be expanded, but this kit is configured for single-cylinder operation out of the box.

For most gas-detection programs, yes. Manual bump testing and calibration are time-consuming and easy to skip or mis-record. The RKI SDM-3R automates the whole cycle for GX-3R (Pro) monitors — charge, bump, calibrate, alarm check, and auto on/off — and logs every result automatically, which supports compliance and audit trails. One station can service up to 10 instruments and multiple stations can share gas, so it scales for fleets while cutting labor and gas waste versus doing each monitor by hand.

The RKI 81-SDM3R103 SDM-3R Docking & Calibration Station for the GX-3R is available at Industrial Safety Products (industrialsafetyproducts.com) with free shipping. It arrives as a complete kit — station, demand flow regulator, 58AL 4-gas cylinder (H2S/CO/CH4/O2), cylinder holder, AC adapter, USB flash drive, USB cable, and tubing — plus the PC software for viewing and archiving records.