Senso4s Plus And Basic Digital Gas Cylinder Monitor

Running out of gas mid-journey ranks among the most frustrating experiences for motorhome owners and campers. The Senso4s range tackles this problem head-on with Bluetooth-enabled digital scales that sit beneath your gas cylinder, measuring remaining gas levels with 1% accuracy and sending real-time data to your smartphone. These compact monitors work with all standard UK cylinders between 180mm and 320mm diameter, handling steel, aluminium and composite bottles up to 45kg total weight. Both models share identical core functionality: three adjustable feet that extend to fit your bottle size, automatic measurements every 15 minutes stored on the device, and free iOS and Android apps that display percentage remaining, consumption forecasts based on usage patterns, and low gas alerts. Setup takes minutes. Enter your cylinder's tare weight from the bottle label, place the Senso4s on a solid surface in your gas locker or outside storage area, position the bottle on top, and connect via Bluetooth. The app calculates how much gas you've got left and estimates days remaining at current consumption rates.

Should I choose the Senso4s BASIC or Senso4s PLUS for my setup?

The Senso4s BASIC (identifiable by blue feet) suits static applications where the cylinder stays put. Home BBQs, patio heaters, static holiday caravans and permanent camping pitches all work perfectly with the BASIC. It monitors gas levels reliably when the bottle isn't moving but lacks the sensors needed to compensate for travel vibrations or slopes. The Senso4s PLUS (green feet) adds three critical sensors specifically for motorhomes, campervans and touring caravans. Its motion sensor detects when you're driving and pauses measurements automatically, resuming once you've parked up. This prevents the false readings you'd get from road vibrations affecting the scales. The tilt sensor recognises when you've parked on sloped ground and stops measuring until the angle returns below 6 degrees, ensuring accurate data even on hillside pitches. Temperature monitoring adds another layer of reliability, as the PLUS tracks ambient conditions between -10°C and +40°C and alerts you if the gas locker gets too hot or cold for accurate readings.

The PLUS also carries ATEX certification (EX Zone 2, II 3G Ex ic IIA T4 Gc), confirming it's safe for use inside motorhome gas lockers where propane and butane vapours might accumulate. This certification matters for insurance and compliance, as many caravan club sites and European touring routes require ATEX-rated equipment in enclosed gas compartments. The PLUS model includes a refill function that guides you through the process of refilling cylinders at LPG stations without removing the bottle from the sensor. Both units run on three AAA batteries (not included) lasting up to 18 months, offer 20-metre Bluetooth range, and feature IP44 water and dust resistance. The app supports multiple devices, letting you monitor separate cylinders for BBQ, heating and cooking from one phone. For touring and mobile use, the PLUS delivers worth the upgrade. For garden and static applications where movement isn't a factor, the BASIC provides identical accuracy at lower cost.

Which Senso4s gas monitor is right for my needs?