Ohaus Pen Meter ST20M-C

Ohaus Pen Meter ST20M-C Model # 30393200 Accurate Electrochemistry Measurement At Your Fingertips Starter pen meters provide what should be expected of a small pen meters: simple, fast, straightforward, no-frills yet highly accurate operation time and time again. With durable plastic housing, a protective cap that safeguards the sensor and an automatic shutdown feature to preserve battery life, the Starter pen meters can endure consistent use in rugged environments. Equipped with a wrist strap that helps to prevent unintentional dropping, Starter pen meters are constructed with an IP67 waterproof design that can prevent water damage when accidentally dropped into liquid. Product Specifications Meter Type Conductivity;  pH;  Salinity Measurement Range 0.0 – 99.0 °C;  0.00 – 14 pH;  0.00 – 19.99 ms/cm;  0.0 – 10.0 ppt Accuracy ± 0.05 pH / ± 0.5 °C;  ±2.0 % F.S. Measurement Resolution 0.01 pH;  0.01ms/cm;  0.1 ppt;  0.1 °C ATC Yes Temperature Compensation Not Applicable Automatic Shutdown Yes, After 6 minutes of non-use Battery Life 100 Hours with Disposable Batteries Calibration 3 Point Conductivity accuracy (±) 2 % Conductivity measuring range 0.00 – 19.99 mS/cm Dimensions (LxHxW) 7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm) Net Weight 3.88 oz (110 g) Number of Buttons 3 pH accuracy (±) 0.05 pH measuring range 0 Power 4 AG13 Batteries (Included) Protection Rating IP67 Temperature Display Yes Temperature Sensor 50 KΩ NTC Working Environment 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing) Wrist Strap Yes   This product ships directly from Ohaus, ensuring fast delivery, proper handling, and factory-fresh quality. When you purchase Ohaus, you’re backed by one of the most trusted names in laboratory equipment — known worldwide for precision, reliability, and exceptional support. Shop with confidence knowing your order is fulfilled by the manufacturer themselves Product Brochure