YSI ORP15A ORP (redox)/Temperature Accurate, Economical Pen-Style Measurement The EcoSense® ORP15A pen-style instrument provides an easy-to use graphic interface, simple one-hand operation, memory, and low cost of ownership. The ORP15A measures ORP (absolute and relative mV) and temperature with the following features: IP-67 waterproof housing 1-year instrument warranty Automatic temperature compensation User-replaceable electrodes Clear, easy-to-read graphic display with on-screen instructions Absolute and relative mV readings “Hold” feature locks readings on display 50 data-set memory >200 hour battery life; low battery indicator CE compliance The ORP15A is designed for quick, accurate results in an economical platform. With a one-year instrument warranty and six-month electrode warranty, the ORP15A will fit your needs for an easy-to-use mV instrument for food (vegetable washing and sanitizers), swimming pools, wastewater, and aquaculture sampling. The ORP15A is a reusable pen-style instrument. The electrode cap is easy to replace while keeping the instrument. No throw-away instrument here! Manufacturer Manual Part Number Description Compatible With Additional Notes Pen Only YSIORP15A ORP Temperature Pen Tester Replacment Electrodes YSI606112 Electrode Kit, ORP15A, Grey Accessories YSI605118 RP, Battery Kit, Pen All EcoSense pens 4 batteries YSI580 Carrying Case, Pens, Soft-sided pH10A, ORP15A, EC30A