Reliable pH checks are easier when the meter is built for wet field work, changing light and practical handling. This compact handheld family measures pH in water and aqueous media across 0.0...14.00 pH, with ±0.02 pH accuracy at 25 °C and interchangeable electrodes via BNC connection.
For water monitoring, aquaculture, pools, laboratories, quality assurance and service tasks, the dust and water-protected housing supports work outdoors and near water. Ingress protection (IP)65 / IP67 applies when used with electrodes with waterproof BNC connection, while the shatterproof-glass, 3-line display with backlight keeps readings clear by day and night.
ECO 510 focuses on essential pH measurement with manual temperature entry. ECO 511 extends the same platform with pH/ORP measurement, Pt1000 temperature input, automatic temperature compensation and configurable alarm functions, making it a practical choice for field measurements such as surface water and wastewater.
The ECO 510 measures pH in water and aqueous media using suitable BNC electrodes. The medium temperature can be entered manually for applications with stable temperature conditions.
ECO 511 includes a flexible temperature input for temperture probes or electrodes with integrated T-sensor. All compensations are done automatically.
The ECO 511 measures pH and redox with suitable electrodes. It supports ORP display in mV or mVH and includes automatic temperature compensation when a Pt1000 sensor is connected.
The device uses a 3-line LCD with battery status display, backlight and shatterproof glass. The display can be rotated for overhead viewing at the touch of a button.
Hold freezes the current measured value. Min/max functions show the lowest and highest recorded values and can be reset from the keypad.
Automatic pH calibration uses two GPH buffer solutions and compensates their temperature dependence. Manual 1-point and 2-point calibration are available.
The menu includes temperature unit selection, automatic switch-off, backlight timing and factory reset. ECO 511 also provides configurable alarm modes and limits.
The compact housing measures 108 x 54 x 28 mm, with an impact-resistant ABS body and polyester front panel. Weight is approx. 130 g for ECO 510 and approx. 135 g for ECO 511.
