Apera Instruments
Apera Instruments designs and manufactures electrochemical water-quality testing equipment, including pH, conductivity, dissolved oxygen and turbidity meters, together with the electrodes and calibration solutions that keep them reading accurately.
Lancetech Limited lists more than 240 Apera products across pH, conductivity and DO meters, electrodes and probes, certified reference standards and reagents. The range runs from the TDS20 Value pocket meter to the TN480 infrared and TN500 white light turbidimeters with GLP data management and USB output, with matching accessories such as the T500-1 standard turbidity solution set, the TN400-S3 silicone oil and the DO803 luminescent optical DO electrode.
Water utilities, aquaculture sites, food and beverage plants and teaching laboratories use these instruments for routine checks in the field and at the bench. Choose a pocket tester for quick spot readings, a portable or bench meter where records must be kept, and replace electrodes on the same schedule as your calibration standards. Ask for a quotation on any Apera meter or spare.
Apera Instruments by range:pH, conductivity & DO meters220Instruments & Spare Parts220Electrodes & probes88Certified Reference Standards24Chemicals & Reagents24
Filters (3 active)
Reference system
Long Life10Silver ion trap4Pre-pressurized silver ion trap1Silver ion trap with preprint1Membrane resistance
<150 MΩ3<500MΩ3<150MΩ1<400MΩ1<50MΩ1<500 MΩ1<100 MΩ1<250 MΩ1<450 MΩ1<350MΩ1<200 MΩ1Recommended Operating Temperature
(0 ~ 80) °C4(-5 ~ 100) °C3(0 ~ 80)°C1(0 ~ 130) °C1(0 ~ 100) °C1(0 ~ 100)°C1(0~100) °C1(-5 ~ 80) °C1(-5 ~ 100)°C1
LabSen® 223 Combined pH Electrode for Viscous and Low-Concentration Solutions

LabSen® 871 pH electrode for non-aqueous solutions and organic solvents




LabSen® 831 pH electrode for strongly acidic solutions and hydrofluoric acid (HF)









