The Dissolved Oxygen Probe is great for biology, chemistry, ecology, or integrated science courses. It can be used to perform a wide variety of experiments to determine changes in dissolved oxygen levels, one of the primary indicators of the quality of an aquatic environment.
Bante221 is a high performance portable pH/ORP meter designed for outdoor applications. The meter contains a built-in setup menu that provides many advanced and useful options to improve accuracy of measurement and simplify operation. Features: During the pH mode, Up to 5 points push-button calibration with auto- buffer recognition. Selectable pH buffer standards and temperature units. Automatically calculates and shows electrode slope after calibration. Automatic Temperature Compensationensures highly accurate measurement over the entire pH range. Calibration due reminder prompts you to calibrate the meter regularly. During the ORP mode, 1 point offset calibration allows user to adjust displayed value to a known standard. Absolute or Relative millivolt (R.mV) measurement provides accurate ORP readings. Automatic endpoint function freezes the stable measured values for easy reading and recording data.
Bante220 is an economical portable pH/mV meter designed for outdoor applications, which is equipped with a large LCD and a standard BNC connecter. The meter is capable of connecting the various pH electrodes to measure the pH value of samples. Features: 2 points push-button calibration with auto-buffer recognition. Automatically calculates and shows electrode slope after calibration. Selectable temperature unit between degrees Celsiusanddegrees Fahrenheit. Automatic Temperature Compensationensures highly accurate measurement over the entire pH range. Hold function freezes the current displayed value for easy viewing. Help message as a operational guide that can help you quickly use the meter. Setup menu allows user to customize temperature unit, date and time for measurement requirements. Expanded memory stores and recalls up to 50 readings. Built-in real-time clock stamps stored data to meet GLP standards. Stored data can be transferred into computer via USB communication interface.