ULTRAPEN™ PT5 Measurement Modes: MODE METHOD OF MEASUREMENT Hold Displays real-time readings until stable or 3 minutes, whichever comes first, then displays final readings. LIVE Displays real-time readings continuously for up to 5 minutes. ULTRAPEN™ PT5 Parameter Modes: MODE PARAMETER MEASURED DO Default Display alternates between DO Concentration in ppm, DO Saturation in % and Temperature. DO Concentration Display alternates between DO Concentration in ppm and Temperature. DO Saturation Display alternates between DO Saturation in % and Temperature. ULTRAPEN™ PT5 Specifications: Specifications DO Concentration DO Saturation Temperature Ranges 0-20 ppm 0-200% 0 – 71°C / 32 – 160°F Accuracy1 ± 0.2 ppm or ± 2% of the reading, whichever is greater (up to 40ºC) 0.0% to ≤ 100.0%: ± 20 counts; >100%: ± 2% of the reading. ± 0.1°C Resolution 0.01 ppm 0.1% 0.1°C/F Altitude Adjustment: -2,000 ft. to 15,000 ft. in increments of 100 ft. Salinity Adjustment: 0 – 50 ppt in increments of 1 ppt Time to Reading Stabilization: 10 – 180 seconds Calibration Methods: 1 or 2 Point; 0 ppm DO Calibration Solution, Air or Water Operating/Storage Temperature: 0 – 55°C / 32 – 131°F Power Consumption: Active Mode: 30 – 140 mA, Sleep Mode: 2 µA Temperature Compensation for Membrane Permeability: Automatic Physical Dimensions: 17.15 cm L x 1.59 cm D or 6.75 in. L x .625 in. D Weight: 54 g or 1.94 oz. Case Material: Anodized Aircraft Aluminum with Protective Coating Battery Type: N type, Alkaline 1.5 V Water Resistance: IP67 and NEMA 6 EN61236-1: 2006 – Annex A: 2008; 1999/5/EC Annex III Electrostatic discharge to case of instrument may cause PT5 to spontaneously power ON. In this case, the PT5 will power OFF after several seconds. WARNING! These products can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. 1Accuracy after Temperature Controlled, Full Calibration.

ULTRAPEN™ PT5 Applications: Municipal Drinking Water Municipal Wastewater Treatment Pool and Spa Industrial Water (boilers and cooling systems) Fruit and Vegetable Rinse RO Membrane Aquaculture Aquaponics Poultry Processing Poultry Drinking Water Industrial Canned and Bottled Food Plants Greenhouse Pharmaceutical Manufacturing Well Water Brewing/Home Brewing