{"product_id":"green-led-digital-2-in-1-52mm-gauge-with-alarm-water-level-and-sewage-level-meter-for-12v-24v-vehicles","title":"Green LED Digital 2 IN 1 52mm Gauge with Alarm | Water Level and Sewage Level Meter for 12V\/24V Vehicles","description":"\u003cp\u003eThis 2 in 1 digital gauge lets you monitor both water and sewage levels from a single 52mm display. It works with a 0-190 ohm signal range and includes programmable alarm settings to alert you when levels are too low or too high.\u003c\/p\u003e\n\u003cp\u003eDesigned for marine boats, trucks, RVs, and generators, this gauge provides clear green LED readouts that are easy to see even in direct sunlight. The dual function design saves dashboard space and simplifies your monitoring setup.\u003c\/p\u003e\n\u003cp\u003eThe gauge features a built-in delay of about 20 to 80 seconds. This prevents false readings from liquid splashing inside the tank, giving you more accurate and stable level information.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward with color-coded wiring and a standard 52mm cutout. The unit works with both 12V and 24V electrical systems and includes reverse polarity protection for added safety.\u003c\/p\u003e\n\u003cp\u003eKey Features and Benefits\u003c\/p\u003e\u003cp\u003e- 2 in 1 dual function that monitors water level and sewage level from one gauge, saving panel space and reducing installation work\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eGreen LED digital display with high resolution that stays readable under bright sunlight, so you can check levels at a glance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eProgrammable alarm set below 20% for water level and above 80% for sewage level, giving you clear warnings when action is needed\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eAdjustable input signal range from 0-190 ohm with multiple preset options, making it compatible with different tank sensors\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIP66 waterproof rating and anti-fogging performance, ensuring reliable operation in wet and humid environments\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eWide working temperature range from -40 to 85°C, suitable for extreme weather conditions\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eWho Is This For\u003c\/p\u003e\u003cp\u003e- Boat owners who need to monitor fresh water and waste tank levels from a single dashboard gauge\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eRV and motorhome users looking for a compact dual-purpose level indicator for holding tanks\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eTruck and bus operators who want a reliable water and sewage monitoring system for mobile living spaces\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eGenerator technicians requiring a durable level gauge that works in both 12V and 24V electrical systems\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eUsage Scenario\u003c\/p\u003e\u003cp\u003eMark owns a small motorhome and often camps off-grid for several days. He used to check his fresh water and waste tanks separately with two different gauges, which was inconvenient and took up space on his dashboard. After installing this 2 in 1 gauge, he can see both levels on one screen. The alarm reminds him when his fresh water drops below 20% and when his waste tank reaches 80%. This helps him plan his water usage and find a dump station before the tanks become a problem.\u003c\/p\u003e\n\u003cp\u003eMicro Comparison\u003c\/p\u003e\u003cp\u003eUnlike basic single-function gauges that only monitor one tank, this 2 in 1 unit displays both water and sewage levels from the same 52mm opening. It also includes programmable alarms and multiple signal range options, giving you more flexibility than standard fixed-range gauges. The green LED display offers better visibility in bright conditions compared to analog needle gauges.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\u003cp\u003e- Material: Stainless Steel\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eGauge Diameter: 52 mm \/ 2.0 in\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eGauge Length: 150 mm \/ 5.9 in\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eGauge Width: 52 mm \/ 2.0 in\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eItem Weight: 150 g \/ 5.3 oz\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSensor Length: 100-600 mm \/ 3.9-23.6 in\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSignal: 0-190 ohm\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eWorking Voltage: 12V \/ 24V\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eWorking Temperature: -40 to 85°C\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eWaterproof Rating: IP66 (gauge)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eWater Level Alarm Set: less than 20%\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSewage Level Alarm Set: more than 80%\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003ePlease allow 1-3 mm \/ 0.04-0.12 in difference due to manual measurement.\u003c\/p\u003e\n\u003cp\u003ePackage Includes\u003c\/p\u003e\u003cp\u003e- 1 x Gauge with cable and manual\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eNote: Sensor is sold separately. If you select the gauge option, the sensor is not included. If you select the sensor option, the gauge is not included.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eWhy You Will Love It\u003c\/p\u003e\u003cp\u003eYou get two essential tank monitors in one compact gauge, which simplifies your dashboard and reduces wiring work. The programmable alarms give you peace of mind by alerting you before your water runs out or your waste tank overflows. The durable stainless steel construction and wide temperature range mean it will perform reliably in tough conditions for years.\u003c\/p\u003e\n\u003cp\u003eQuestions and Answers\u003c\/p\u003e\u003cp\u003eQuestion: Does this gauge work with a 24V system?\u003c\/p\u003e\u003cp\u003eAnswer: Yes, it works with both 12V and 24V electrical systems.\u003c\/p\u003e\n\u003cp\u003eQuestion: Is the sensor included with the gauge?\u003c\/p\u003e\u003cp\u003eAnswer: No, the gauge and sensor are sold separately. You need to select the gauge or sensor option when ordering.\u003c\/p\u003e\n\u003cp\u003eQuestion: What does the alarm do when the water level is too low?\u003c\/p\u003e\u003cp\u003eAnswer: The gauge triggers an alarm when the water level drops below 20% and when the sewage level goes above 80%.\u003c\/p\u003e\n\u003cp\u003eQuestion: Can I use this gauge for fuel level monitoring?\u003c\/p\u003e\u003cp\u003eAnswer: Yes, the gauge can be programmed to work as a fuel gauge by adjusting the signal range setting in the menu.\u003c\/p\u003e\n\u003cp\u003eQuestion: How long does it take for the reading to update?\u003c\/p\u003e\u003cp\u003eAnswer: The gauge has a built-in delay of about 20 to 80 seconds to avoid reacting to liquid splashes in the tank.\u003c\/p\u003e\n\u003cp\u003eQuestion: What size hole do I need to cut for installation?\u003c\/p\u003e\u003cp\u003eAnswer: You need to cut a 52 mm (2-1\/16 inch) hole in the panel.\u003c\/p\u003e\n\u003cp\u003eQuestion: Can I customize the signal range?\u003c\/p\u003e\u003cp\u003eAnswer: Yes, you can set the signal range from 000 to 006 using the button menu, which covers options like 0-180 ohm and 10-180 ohm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sffab6c68765c4cfaaee7ad30973b159cp.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Scdbf909bab0843e7b8dc09f789145278B.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1bcaff7ad59b46d9bba22f9453cc1ce7i.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S23222222d8d148bf81208de51d607713I.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa36b805ed2a24d628e996666fcdb61a8m.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0d251df0571a40ad80b3334249a2dee5h.jpg\" 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