Check the listing for details. Milwaukee pH55 Waterproof pH Tester with Automatic Calibration. Condition: New. Listed at 62.95 USD. The pH55 is a Waterproof pH tester with Large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from -2.0 to 16.0 pH (pH56 has a 0.01 pH resolution) and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F. They have a stability indicator and hold function that freezes the display for easy and accurate recording. The large display also has graphic symbols to guide you through all operations. Complete with a temperature probe for faster and more precise temperature measurement they compensate automatically for temperature. Calibration is made automatically in 1 or 2 points with memorized standard and NIST buffer sets samples of which are included. Auto power OFF saves battery power after non-use. Comes with a USA factory warranty and full support from Milwaukee. Part#pH55. For more info see the datasheet : [link removed]. Calibration Video : http://www.youtube.com/watch?v=Nsfb1Bl6ppQ 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