The RKI GX-3R Pro is the world’s smallest 5-gas monitor, weighing only 4.58 ounces and fitting in the palm of your hand. It simultaneously monitors standard confined space gases (LEL, O2, CO, H2S) and includes a fifth channel for an optional infrared or toxic sensor. Two of the four sensor slots have interchangeable sensors, allowing flexible configurations that can be changed in the field.

The GX-3R Pro features Bluetooth wireless communication with iOS/Android app support, a man-down alarm, and a panic alarm. It offers a choice of alkaline or rechargeable Li-ion power; the Li-ion pack operates for 25 hours and charges in 3 hours. The unit includes a 3-year warranty, impact-resistant body, and simple 2-button operation with three user-adjustable alarm levels. Applications include personal monitoring, confined spaces, refineries, utilities, oil and gas, and fire services.