Hanna pHep 4 pH and Temperature Tester | HI98127, 0.1 pH Resolution

Where the Hanna pHep 4 Fits in a Grow Room The range runs -2.0 to 16.0 pH at 0.1 resolution and ±0.1 accuracy, with temperature from -5 to 60 °C. Readings are temperature compensated automatically. The sensor is an HI73127 cartridge that unscrews and replaces, which is the difference between a five year tool and a disposable one. Four cells run it for roughly 300 hours and it shuts off after eight idle minutes. The casing is waterproof and it floats. Living With a pH and Temperature Tester That Reads in Tenths Calibration is automatic, one point or two, against the 4.01 and 7.01 buffers that come in the box. Storage solution comes with it as well, and that is where the tip belongs between readings. Never dry, and never parked in plain water, which strips the junction. The resolution is the trade-off. Steps this size are coarse for reservoir work, where the gap between 5.8 and 6.0 changes what a root can actually take up. Use it for spot checks, runoff and source water. When you are dialling a tank, the HI98129 combo reads to 0.01 and adds EC on the same pen. Key Features 0.1 pH resolution: Tenths, which suits spot checks and source water rather than fine reservoir work. -2.0 to 16.0 pH range: Wide enough for cleaning solutions and nutrient stock as well as feed water. Replaceable HI73127 cartridge: A spent electrode costs a cartridge, not a meter. Automatic temperature compensation: Temperature reads alongside pH and corrects it, so a cold tank does not mislead. Automatic calibration: One or two point against the 4.01 and 7.01 buffers supplied. About 300 hours on four cells: With a battery level indicator and shutdown after eight idle minutes. Waterproof, and it floats: Dropping it in the reservoir is an inconvenience, not a replacement. Step up if you need finer: The HI98129 combo reads 0.01 pH and adds EC and TDS on one pen. Technical Specifications Specification Value Brand Hanna Instruments Product Name pHep 4 Part Number HI98127; SKU 716830 Type pH and temperature tester pH Range -2.0 to 16.0 pH pH Resolution 0.1 pH pH Accuracy ±0.1 pH at 25 °C pH Calibration Automatic, one or two point, two sets of standard buffers Temperature Range -5.0 to 60.0 °C, 23.0 to 140.0 °F Temperature Resolution 0.1 °C Temperature Accuracy ±0.5 °C Temperature Compensation Automatic Electrode HI73127, replaceable cartridge Battery 4 x 1.5V, about 300 hours continuous Auto Shutoff After 8 minutes of non-use Housing Waterproof, floats, 100% RH rated Dimensions 163 x 40 x 26 mm Weight 100 g, 3.5 oz In the Box Meter, pH 4.01 and 7.01 buffers, cleaning and storage solution, electrode removal tool, batteries, certificate and manual Finer Resolution Option HI98129 combo, 0.01 pH, plus EC and TDS