ECO 531 Waterproof handheld for dissolved oxygen incl. sensor

• Modern and functional housing
• Waterproof (IP65 / IP67)
• Convenient adjustment at air on keypress
• Incl. galvanic oxygen sensor with temperature measurement
• 3-line display / overhead display on keypress
• Backlight
• Durable, long battery life
• Hold-function to freeze measured values
• Min/Max-Function for minimum and maximum values