The MW500 performs ORP measurements with a range of ±1000 mV via the SE-300 platinum electrode. Milwaukee's low cost durable meters for quick and reliable measurements. The MW500 is very durable and easy to use, and consistently provides quick and accurate measurements. This portable meter is suitable for a wide range of applications, such as education, agriculture and horticulture, as well as water and environmental analysis. The MW500 boasts a long battery life and an easy to read LCD.

All ORP probes used in normal use will need to be replaced about every 10 to 12 months due to the corrosion of the platinum on the probe diode. 

Datasheet :  [link removed] 
MW500 Calibration Video :  https://www.youtube.com/watch?v=9PQ6bjvq4V0

Milwaukee Policy

If you are purchasing this product you agree to contact Milwaukee Instruments directly if you have any issues. This is recommended by Milwaukee Instruments to quickly address customer issues and provide their top notch customer support. Due to the complex issues of their products and vast applications they handle the tech support as they are a lot smarter than we are.

If you have any questions on:

• Dead on Arrival
• Product set up
• Application Use
• Warranty Use

Customer Support Milwaukee Instruments, Inc.
2950 Business Park Drive - Rocky Mount, NC 27804 - U.S.A.

Tel.: +1.252.443.3630 - Fax: +1.252.443.1937