£111.17

Apera Instruments AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass

AI3109

Price data last checked 120 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

This is the usual price. Wait for it to drop, or tell us your number.

£111 today · usual range £0–£0 · best ever £100

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 611 days • 611 data points (No recent data available)

Historical
Generating forecast...
£144.47 £95.61 £106.27 £116.93 £127.59 £138.25 £148.91 07 June 2024 06 November 2024 08 April 2025 07 September 2025 07 February 2026

Price Distribution

Price distribution over 611 days • 3 price ranges

Days at Price
Current Price
353 days 44 days · current 214 days 0 88 177 265 353 £100-109 £109-118 £136-144 Days at Price

Price Analysis

Most common range: £100-109 (353 days, 57.8%)

Price range: £100 - £144

Price levels: 3 price ranges over 611 days

Key Features

Proprietary pH sensor technology and materials from Switzerland

Unique LabSen HF glass membrane, which has a faster response rate, better repeatability in strong acid samples, and resistant to hydro fluoride corrosion.

Silver Ion Trap Reference System – On top of the Long-Life reference system, a silver ion trap is added to prevent the junction being blocked by silver sulfide.

Standard bnc connector

6-Month Warranty fulfilled by Apera Instruments

Product Specifications

Model
AI3109
Domain
Amazon UK
Release Date
20 September 2023
Listed Since
20 September 2023

Barcode

No barcode data available

Similar Products You Might Like

Apera Instruments AI3104 LabSen 241-3 Professional Combination pH Electrode for Micro Samples (>30 μL), Lead-Free Glass
98% match

Apera Instruments AI3104 LabSen 241-3 Professional Combination pH Electrode for Micro Samples (>30 μL), Lead-Free Glass

Apera Instruments

£198.66 14 Apr 2026
Apera Instruments AI3108 LabSen 801 Professional Combination pH Electrode for Purified Water and Low Ion-Concentration Samples, BNC Connector, Lead-Free Glass
98% match

Apera Instruments AI3108 LabSen 801 Professional Combination pH Electrode for Purified Water and Low Ion-Concentration Samples, BNC Connector, Lead-Free Glass

Apera Instruments

£119.61 10 Apr 2026
Apera Instruments AI3110 LabSen 851-1 Professional Combination pH Electrode for Viscous Solutions such as cosmetic products; BNC Connector, Lead-Free Glass
98% match

Apera Instruments AI3110 LabSen 851-1 Professional Combination pH Electrode for Viscous Solutions such as cosmetic products; BNC Connector, Lead-Free Glass

Apera Instruments

£122.22 12 Apr 2026
Apera Instruments PH800 Laboratory Benchtop pH Meter Kit (Equipped with 201T-F pH/temp. Combination Electrode; GLP Data Management, USB Output)
97% match

Apera Instruments PH800 Laboratory Benchtop pH Meter Kit (Equipped with 201T-F pH/temp. Combination Electrode; GLP Data Management, USB Output)

Apera Instruments

£450.00 09 Apr 2026
Apera Instruments PH850-HF Portable pH Meter for Solutions containing Strong Acid or Hydrofluoric Acid
97% match

Apera Instruments PH850-HF Portable pH Meter for Solutions containing Strong Acid or Hydrofluoric Acid

Apera Instruments

£331.25 12 Apr 2026
Apera Instruments AI1302 201T-F 3-in-1 pH/Temperature Electrode
97% match

Apera Instruments AI1302 201T-F 3-in-1 pH/Temperature Electrode

Apera Instruments

£55.09 07 Jan 2026
Apera Instruments AI3106 LabSen 551 Professional Combination pH Electrode for Direct Soil pH Testing, BNC Connector, POM
97% match

Apera Instruments AI3106 LabSen 551 Professional Combination pH Electrode for Direct Soil pH Testing, BNC Connector, POM

Apera Instruments

£161.28 15 Apr 2026
Apera Instruments PH850-SB Portable pH Meter for Strong Alkaline Solutions
97% match

Apera Instruments PH850-SB Portable pH Meter for Strong Alkaline Solutions

Apera Instruments

£327.01 15 Apr 2026
Apera Instruments PH9500 Research-Grade Benchtop pH Meter Kit with Comprehensive GLP Data Management and Data Output to Printer/PC
97% match

Apera Instruments PH9500 Research-Grade Benchtop pH Meter Kit with Comprehensive GLP Data Management and Data Output to Printer/PC

Apera Instruments

£621.68 11 Apr 2026
Apera Instruments PH850-SS Portable pH Meter Kit for Food and Semi-solid Samples, Equipped with LabSen 753 Spear Probe
97% match

Apera Instruments PH850-SS Portable pH Meter Kit for Food and Semi-solid Samples, Equipped with LabSen 753 Spear Probe

Apera Instruments

£424.43 14 Apr 2026
Apera Instruments AI501 Bench top Lab pH Meter, PH700, 0.01 Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode
96% match

Apera Instruments AI501 Bench top Lab pH Meter, PH700, 0.01 Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

Apera Instruments

£185.26 11 Apr 2026
Apera Instruments AI3101 LabSen 211 Professional Glass Combination pH Electrode for regular water solutions in scientific research and quality control, TRIS buffer compatible, BNC Connector
96% match

Apera Instruments AI3101 LabSen 211 Professional Glass Combination pH Electrode for regular water solutions in scientific research and quality control, TRIS buffer compatible, BNC Connector

Apera Instruments

£73.78 09 Apr 2026
Apera Instruments AI3201 pH Electrode for SX811-SS Portable pH Meter, LabSen 753, Stainless Steel Spear, 2" Height, 2" Wide, 6" Length
96% match

Apera Instruments AI3201 pH Electrode for SX811-SS Portable pH Meter, LabSen 753, Stainless Steel Spear, 2" Height, 2" Wide, 6" Length

Apera Instruments

£214.65 11 Feb 2026
Apera Instruments AI421 PH400S Portable Ph Meter Kit, 0.01 Ph Accuracy, -2.00 to 19.99 pH Range, GLP Data Management (500 Groups of Data Storage), USB Data Output, 1.3" Height, 3.4" Wide, 7" Length
96% match

Apera Instruments AI421 PH400S Portable Ph Meter Kit, 0.01 Ph Accuracy, -2.00 to 19.99 pH Range, GLP Data Management (500 Groups of Data Storage), USB Data Output, 1.3" Height, 3.4" Wide, 7" Length

Apera Instruments

£271.68 12 Apr 2026
Apera Instruments AI3107 LabSen 371 Professional Combination Flat pH Electrode for Surface Test, BNC Connector, POM
96% match

Apera Instruments AI3107 LabSen 371 Professional Combination Flat pH Electrode for Surface Test, BNC Connector, POM

Apera Instruments

£110.96 11 Apr 2026
Apera Instruments LabSen 331 POM-body pH Electrode for Wastewater, Emulsions, Suspensions, BNC Connector
96% match

Apera Instruments LabSen 331 POM-body pH Electrode for Wastewater, Emulsions, Suspensions, BNC Connector

Apera Instruments

£79.65 10 Feb 2026
Apera Instruments LabSen 881 Glass-body pH Electrode for Low Temperature Solutions, BNC Connector
96% match

Apera Instruments LabSen 881 Glass-body pH Electrode for Low Temperature Solutions, BNC Connector

Apera Instruments

£162.73 05 Feb 2026
PH400 Portable pH Meter Kit, 0.01 pH Accuracy, 0-14.00 pH Measuring Range, Probe with 3ft cable, 3-Point Auto Calibration, pre-mixed buffers included
96% match

PH400 Portable pH Meter Kit, 0.01 pH Accuracy, 0-14.00 pH Measuring Range, Probe with 3ft cable, 3-Point Auto Calibration, pre-mixed buffers included

Apera Instruments

£237.69 10 Apr 2026
Apera Instruments AI3103 LabSen 241-6 Professional Combination pH Electrode for Small Samples (>0.2 mL), BNC Connector, Lead-Free Glass
96% match

Apera Instruments AI3103 LabSen 241-6 Professional Combination pH Electrode for Small Samples (>0.2 mL), BNC Connector, Lead-Free Glass

Apera Instruments

£163.55 12 Apr 2026
Apera Instruments PH850-PW Portable pH Meter for Pure Water (Drinking/RO/Distilled/Deionized Water), Equipped with LabSen 803 Electrode
96% match

Apera Instruments PH850-PW Portable pH Meter for Pure Water (Drinking/RO/Distilled/Deionized Water), Equipped with LabSen 803 Electrode

Apera Instruments

£387.93 29 Mar 2026
Apera Instruments PH850-DP Portable pH Meter for Dairy Products (Milk, Cream, Yogurt) and Liquid Food, Equipped with LabSen 823 pH/Temp. Electrode
96% match

Apera Instruments PH850-DP Portable pH Meter for Dairy Products (Milk, Cream, Yogurt) and Liquid Food, Equipped with LabSen 823 pH/Temp. Electrode

Apera Instruments

£291.08 10 Apr 2026
Apera Instruments PC800 Benchtop pH/Conductivity Meter Kit (Equipped with 201T-F 3-in-1 pH Combination Electrode/Probe and BPB 2301T-F Conductivity Electrode; GLP Data management)
96% match

Apera Instruments PC800 Benchtop pH/Conductivity Meter Kit (Equipped with 201T-F 3-in-1 pH Combination Electrode/Probe and BPB 2301T-F Conductivity Electrode; GLP Data management)

Apera Instruments

£713.78 15 Apr 2026
Apera Instruments Premium Series PH8500 Portable Handheld pH Meter Kit
96% match

Apera Instruments Premium Series PH8500 Portable Handheld pH Meter Kit

Apera Instruments

£364.71 09 Apr 2026
Apera Instruments AI413 PC400 Portable Multi-Parameter Meter Kit (pH/EC/TDS/Temp.), 6 Bottles of Calibration Solutions Included, 1.3" Height, 3.4" Wide, 7" Length
96% match

Apera Instruments AI413 PC400 Portable Multi-Parameter Meter Kit (pH/EC/TDS/Temp.), 6 Bottles of Calibration Solutions Included, 1.3" Height, 3.4" Wide, 7" Length

Apera Instruments

£336.15 09 Apr 2026