a division of Lazar Research Laboratories, Inc.
Get Free Handbooks
Tel: 814-870-9309 | Fax: 914-810-8660
Your Micro Electrode Measurement Experts Since 1976™
Measure  pH   O2   Na   Ca   K   CO2   H2S   NO   ORP  in a Single Droplet™

Lazar Ultra-M micro pH electrode
recommended by researchers worldwide

Virtually Unbreakable!
    Advantages include
  • Fits directly into 96 well plates, NMR tubes, microcentrifuge tubes, and serum cups
  • Measures down to 10 microliters - less than 1/5 the volume of a single drop of liquid
  • Measures small biological specimens down to less than 0.5 mm in length
  • Virtually unbreakable made with all solid state fluoropolymer body
  • 1 mm tip and 2.8 mm diameter body
  • Can be used with any standard pH meter or strip chart recorder
  • Trusted by universities and research institutes worldwide

The Lazar Ultra-M micro pH electrode is so commonly used by research centers worldwide that it has become the industry standard for measuring pH in small samples. Not only does it measure down to 1/5 of a drop, but its solid-state body makes it virtually unbreakable.

Purchase our micro pH electrode by itself or as a complete ArrowLabb(TM) micro pH measurement system. The complete system includes everything you need to measure, log and graph all in one. System includes micro pH electrode, advanced digital meter plus our exclusive logging and plotting software and more. Full details on pH measurement systems.

Cat. No.: PHR-146S (specify connector type or pH meter when ordering)
Unit Price: $699.00
pH Range: 2 to 12
Temp. Range: 0 to 65 oC
Body Type: Fluoropolymer and epoxy
Dimensions: 3mm dia X 150mm length
Internal ref.: Ag/AgCl

Description: Micro pH electrode with solid state sensor for measuring samples down to 10 microliters of sample. Flexible fluoropolymer stem is guaranteed against breakage for the life the electrode.

Applications: Any samples with volumes between 10 to 800 microliters. Use in microtiter plates, microcentrifuge tubes, NMR tubes, micro test tubes, isoelectric focusing gels.

Micro pH electrode for NMR tubes

This electrode is also available with an extra long stem especially for measuring pH in NMR tubes. Enjoy the same accuracy as our standard micro pH electrode especially designed for NMR tubes.

Order this electrode by itself or as a complete system

Item Numbers and Pricing
PHR-146S - Ultra-M micro pH electrode: $699.00
PHR-146NMRS - Ultra-M micro pH electrode for NMR tubes: $750.00

Complete micro pH measurement systems
Measure, graph & table all in one system.
PHR-146XS - Ultra-M micro pH system: $1495.00
PHR-146NMRXS - Ultra-M micro pH system for NMR tubes: $1549.00

See Complete pH Systems Index for full product details

Receive further product details
Your name:
Your email address:
Specific questions:

FREE gift for your lab - Micro pH Measurement Handbook
Enter your email address:
Request further details
Request a formal pro forma or quotation

For specific questions or to receive printed literature, send your request by email to or call us at 814-870-9309, or fax us at 914-810-8660.
Contact us
How to place an order

Prices and specifications subject to change without notice.

All offers subject to change without notice
© 2017 privacy policy