Bluelab Combo Meter Plus It's all you need for simple and reliable crop management. The Bluelab Combo Meter Plus is a portable pH, conductivity and temperature meter all in one with multimedia Leap Probe. If you are experiencing problems with yellow leaves, or slow stunted growth, the Bluelab Combo Meter Plus will soon tell you if each parameter is within the plants requirements. Adjustments can be quickly made to get your crop back on track. The Bluelab Combo Meter Plus has two probes, a Bluelab multimedia Leap pH Probe and a Bluelab Conductivity/Temperature Probe. When taking a reading, simply place the probe into the solution (ec+ph) or media (ph) and the selected reading is displayed on screen. As the Bluelab Combo Meter Plus is portable and does not require a power supply to operate, it can be used anywhere, anytime to help you manage your crops’ daily nutrient requirements. Calibration of the pH probe is simple as instructions are supplied on the back of the meter and the easy push button method makes this one of the simplest meters to use. The pH probe is replaceable so you can use this meter for years to come. The Conductivity/temperature probe does not require calibration as this is locked in during manufacture. Often referred to as “The Cadillac of Meters”! Features include, Measures pH, conductivity / nutrient (EC, CF, ppm 500 and ppm 700) and temperature (°C, °F), Lightweight and portable, Large easy to read display, Simple push button pH calibration, Successful pH calibration indicator, No calibration required for conductivity and temperature, Replaceable multimedia Leap pH probe included, Over range and under range indicators, Low battery indicator 2 x AAA alkaline batteries included Auto off function Attention Valued Customer: Ph testers and Ph probes are sensitive scientific equipment. They will require extra care and maintenance from the user (you) to ensure accurate readings, measurements and valid warranties. Ph testers (without replaceable probes) and Ph probes are electrical sensors and considered a consumable item. You should aim to be replacing these over time as you do media, nutrients, etc. Probes and Pens (without replaceable probes) only have a 6-month warranty from date of purchase and will not be honored without receipt of purchase. Probes and Pens with proper care can last for years, but as it is a live charge in the electrode it can be finished from 6 months. More so, if correct care procedures have not been maintained. Hydroponic nutrients in particular degrade Ph probes much faster than other disciplines. Probes must always be re hydrated before use in storage solution, available for purchase in store Probes must be kept in storage solution when not in use (in tank monitors excepted) IF IT DRIES….IT DIES Please read the entire contents of the booklets and handouts that come with all PH instruments carefully.