The YSI Pro20 handheld dissolved oxygen and temperature meter is ideal for use in the lab or field. Utilizing YSI's durable MS (Military Spec) cable connector, the instrument can accept rugged field sensors or a self-stirring lab BOD sensor. To meet the needs of various applications, cables are available in lengths from 1 to 100 meters. The included cable management kit even makes the use of long cables easy and convenient.

The Pro20 is YSI's first dissolved oxygen instrument to offer a convenient "One Touch Cal" feature for air calibrations. This unique feature, along with others like user replaceable sensors, simplifies operation and saves time and money. The YSI Pro20 is completely waterproof, withstands 1-meter submersion and has an industry-leading 2-year cable warranty making it worthy of your demands in the field.

• 3-year instrument; 2-year cable; 1-year Polarographic/6-month Galvanic sensor warranty
  
• Field-replaceable electrodes (choose between Polarographic or Galvanic)
• One-touch cal allows DO calibration with the press of a button
• Stores 50 data sets to ensure data integrity
• Graphic, backlit display
• Standard 1- 4- 10- 20- 30- and 100-m weighted cable lengths (special order up to 100-meter cables in 10-meter increments)
• IP-67, impact-resistant, waterproof case
• Easy-to-use, screw-on cap DO membranes
• English, Spanish, German and French languages
• Glow in the dark keypad
• Quick response times; 95% response time in approximately 8 seconds with standard membrane

Included ;

(1) YSI Pro20 display

(1) Operations manual

(2) C-cell batteries