{"product_id":"blue-diamond-c21-013-maxiblue®-reservoir-sensor","title":"Blue Diamond C21-013 MaxiBlue® Reservoir Sensor","description":"\u003ch2\u003eBlue Diamond C21-013 MaxiBlue® Reservoir Sensor\u003c\/h2\u003e\u003cp\u003eThe Blue Diamond C21-013 MaxiBlue® Reservoir Sensor is a compact external water-collection tank and electronic sensor kit manufactured by Charles Austen Pumps. Designed for use with BlueDiamond® MaxiBlue condensate removal pumps, it replaces unreliable mechanical float switches with solid-state thermistor technology — delivering maintenance-free, fail-safe condensate management for air conditioning and refrigeration systems.\u003c\/p\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Collection:\u003c\/strong\u003e The plastic reservoir sits inside or just below the AC unit to catch falling condensate water droplets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-State Sensing:\u003c\/strong\u003e BlueDiamond® thermistor technology detects water level without any mechanical float — immune to slime, algae, and dirt build-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Trigger:\u003c\/strong\u003e When water rises to the trigger level, the sensor signals the pump to run. Once the tank is empty, the pump shuts off automatically.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Moving Parts:\u003c\/strong\u003e Highly reliable and maintenance-free — no float to clog or stick from airborne dust or biological build-up off AC coils.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFail-Safe Alarm (FSA):\u003c\/strong\u003e High-level alarm circuitry detects critical water levels. If the pump loses power or a drain line blocks, the sensor triggers a built-in relay to safely shut down the AC system before overflow damage occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e Pre-wired plug connects directly into the control port on the MaxiBlue pump housing — no wiring required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaxiBlue Compatible:\u003c\/strong\u003e Designed specifically for BlueDiamond® MaxiBlue condensate pump models.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eMaxiBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eThermistor Sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e92 x 35 x 40mm (3.6 x 1.4 x 1.6 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e2m (6.5 Feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Blue Diamond","offers":[{"title":"Default Title","offer_id":63921624416633,"sku":"C21-013","price":34.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/image_8aad465c-2f7e-4b45-8752-eb4347e7f834.png?v=1783607052","url":"https:\/\/www.airconspares.com\/products\/blue-diamond-c21-013-maxiblue%c2%ae-reservoir-sensor","provider":"Airconspares.com","version":"1.0","type":"link"}