REMS 611312 Quick-Change Gas Sensor GS4-R

The REMS 611312 quick-change gas sensor GS4-R is a replacement or spare sensor head for the REMS Detect GS4 gas leak detector, giving it the ability to detect common refrigerant gases. In plain terms: instead of buying a whole new detector, you simply plug in this colour-coded sensor head and your existing Detect GS4 is ready to find refrigerant leaks on air conditioning, cooling and refrigeration systems, meeting the F-Gas directive (EU) 2024/573 for compliant leak testing.

It fits without tools, pushing straight onto the detector body or the 200mm flexible extension, so swapping sensors between jobs takes seconds. The colour coding makes it easy to identify at a glance, even when you're carrying a few different sensor heads in your kit.

Features and Benefits

• Quick-change sensor head for the REMS Detect GS4 detector
• Detects R-22, R-32, R-134a, R-152a, R-290, R-404a, R-407c, R-410a, R-507a, R-600a and R-1234yf
• Meets F-Gas directive (EU) 2024/573 and EN 14624:2020
• Tool-free plug fitting to detector or flexible extension
• Colour-coded for easy identification

Technical Specification

• HC, R-290, R-600a: 1g/year detection limit (static and dynamic)
• HFC/HCFC (R-22, R-32, R-134a, R-152a, R-404a, R-407c, R-410a, R-507a): 2g/year detection limit (static and dynamic)
• HFO (R-1234yf): 2g/year static, 3g/year dynamic detection limit
• Weight: 20g

What's Included?

• 611312 Quick-Change Gas Sensor GS4-R