The ED91-Pro is an advanced multi-parameter laboratory analyzer, equipped with LCD display and capable of testing for DO, PH, Temperature, ORP, EC, Resistivity, TDS, ISE, and ION with reliable precision. This powerful and portable device offers the ultimate convenience for labs and research facilities.

Features:

• LCD display screen, 3.5 inches.
• Multi-reading feature allows auto-read, timed-read and continuous-read.
• Automatic/Manual temperature compensation ensures accurate results.
• Auto-hold feature senses and locks the measurement endpoint.
• Data capacity of up to 500 sets for each parameter (GLP-compliant).
• Support for USB communication.
• Auto-power off feature effectively extends the battery service life.
• Reset feature automatically resumes all settings back to factory default options.
• IP65 waterproof. The portable meter is suitable for fields measurements and out door measurements.
• Optional parameters: ORP / Resistivity / TDS / ISE / Ion
• ---pH---
• 1-5 points calibration with Standard Recognition.
• Selectable pH buffer groups, including NIST, DIN, GB.
• Automatic electrode diagnosis with pH slope and offset display.
• ---Ion---
• 1-5 points calibration.
• Selectable measurement unit, including μg/L, mg/L, g/L, mmol/L, pX, ppm, etc.
• Measurement modes are supported, including Direct Reading mode, Standard Addition mode, Sample Addition mode and GRAN mode.
• Over 10 methods are built-in, including F-, Cl-, Br-, I-, NO3-, BF4-, NH4+, K+, Na+, Ca2+, Cu2+, Pb2+, Ag+ and etc., user-defined method is supported.
• ---Conductivity---
• 1-3 points calibration with Standard Recognition.
• Settable parameters, including cell constant, temperature compensation coefficient, and TDS factor.
• Temperature compensation type (none, linear, pure water).
• ---DO---
• Support for air-saturated water or zero oxygen calibration.
• Auto barometric pressure compensation
• Manual Salinity Factor Correction
• Selectable pressure unit, including kPa, mbar, Torr, Atm.

Specifications:

• pH Range: -2.00 to 20.00 pH
• pH Resolution: 0.1, 0.01
• pH Accuracy: ± 0.01 pH
• pH Calibration Points: Up to 5
• pH Standard Customization: Yes
• Calibration Reminder: Yes
• pH Standard Recognition: NIST, GB, USA and DIN buffers
• Temperature Unit: ºC, ºF
• Temperature Range: -5 to 110 ºC, 23 to 230 ºF
• Temperature Resolution: 0.1
• Temperature Accuracy: ±0.2

Package includes:

• E-301-QC 3 in 1 pH composite electrode
• DJS-1VTC EC electrode
• DO-958-Q polarographic DO electrode
• NIST pH standard solution(4.01, 7.00, 10.01) ，50ml/vial
• 1413μS/cm EC standard solution, 50ml, 1 vial
• Electrode holder
• Silicone rubber case
• Wristbands
• Carrying Case

Product Brochure / Data Sheet

All the Standard Shipping package will be delivery by standard logistics, such as DHL, FedEX, UPS, etc (shipping terms: DAP). We also provide Sea Shipping, please contact us (eshop@lab1st.com) or chat with us online for real-time shipping cost. Please note that we are day off on the weekends and holidays.

If the merchandise is in stock, we will ship it within 3 to 7 business days for Standard Shipping and about 20 to 30 business days for Sea Shipping. If it is out of stock, we will inform you the estimated delivery time according to different products. All orders will be processed within 2 days (handing time).