Leakbee R503 2-in-1 RV CO & Propane Detector – Flush Mount, 12V DC, 100dB Alarm (Replace #31011)

Overview: Upgrade your RV safety with a 2-in-1 detector

The Leakbee R503 combines carbon monoxide and propane gas detection in a compact RV-friendly unit. Designed to replace the old RV detector #31011, this 2-in-1 sensor setup is tailored for motorhomes, travel trailers, motor coaches, and similar applications. In real-world RV living, carbon monoxide can accumulate in enclosed spaces and propane leaks near appliances or heaters can pose immediate concerns. This detector offers clear, real-time feedback through an intuitive LED readout and a robust audible alert, helping you stay informed without guesswork.

Dual gas detection with clear indicators

Two independent sensors monitor CO and LP gas, providing real-time numbers on the digital display and a loud warning when safety thresholds are approached. The combination of visual and audible cues helps you assess the situation at a glance and respond calmly.

• 2-in-1 monitoring for CO and LP gas in a compact RV design
• LED display shows real-time levels for quick interpretation
• 100 dB audible alarm delivers a strong warning even in noisy RV environments

Power, display, and quick alert features

With a wide input range of 9–24V DC, the R503 adapts to many RV electrical setups. The digital readout paired with a high-decibel alarm gives you multiple cues to notice potential gas events, helping you stay attentive while on the road or at a campsite.

• Wide operational voltage: 9–24V DC
• Digital LED readout for CO and LP levels
• 100 dB alarm for rapid audible notification

Easy upgrade, simple installation

The R503 is built to replace old detector #31011. It uses lever-nut connectors, so there’s no need for tape or extra wiring, making installation smoother and cleaner. The design supports a flush-mount look for a seamless RV interior.

• Flush-mount design for a tidy interior appearance
• Compatible with standard wall cutouts; lever-nut connectors simplify wiring
• Includes flush mount bracket, lever-nut connector, user manual, and mounting screws

What you get and ongoing support

Inside the box you’ll find everything needed for a complete upgrade. Leakbee backs this detector with a warranty and lifetime technical support from gas industry professionals, offering reassurance as you upgrade your RV safety system.

• 1x R503 RV 2-in-1 CO & LP detector
• 1x Flush mount bracket
• 1x Lever-nut connector
• 1x User manual
• 4x Mounting screws