Product Description
Restore accurate readings without replacing the whole meter by swapping in a fresh pen electrode or service part. This range covers replacement electrodes, caps, membranes and maintenance items for OHAUS Starter pen meters and dissolved oxygen equipment.
This listing is for OHAUS item number 30088021: Replacement Pen Electrode for ST20R Pen Meters. Pen electrodes are matched to specific ST10 and ST20 pen models, so check the model code on your meter before ordering. Supporting items include a DO probe cap for the STDO21, a maintenance kit for the STDO11, a replaceable membrane kit for the ST20D, protection caps and bottles, and a glass flow chamber. LIGHT LABS ships genuine OHAUS products and can help you match accessories and parts to your instrument.
Key Features
- Model-Matched Electrodes – Replacement pen electrodes for ST10 and ST20 pen meter variants
- Dissolved Oxygen Service Parts – Probe cap, maintenance kit and membrane kit for DO equipment
- Electrode Protection – Caps and protection bottles keep sensors hydrated during storage
- Cost-Effective Maintenance – Replace the sensing element instead of the complete meter
- Genuine OHAUS Parts – Designed for the meters and probes named
Specifications
| Item Number | 30088021 |
| Brand | OHAUS |
| Description | Replacement Pen Electrode for ST20R Pen Meters |
| Product Type | Replacement Pen Electrode |
| Compatible Models | ST20R |
Related Models
- 30253566 – Dissolved Oxygen Probe Cap for STDO21 Electrode
- 30087996 – Replacement Pen Electrode for ST10C-C and ST10S Pen Meters
- 30087999 – Replacement Pen Electrode for ST20C-C and ST20S Pen Meters
- 30087994 – Replacement Pen Electrode for ST10C-A and ST10T-A Pen Meters
- 30087995 – Replacement Pen Electrode for ST10C-B and ST10T-B Pen Meters
- 30087997 – Replacement Pen Electrode for ST20C-A and ST20T-A Pen Meters
- 30087998 – Replacement Pen Electrode for ST20C-B and ST20T-B Pen Meters
- 30222083 – Replacement Pen Electrode for ST20D Pen Meters
- 30087992 – Replacement Pen Electrode for ST10 Pen Meters
- 30087993 – Replacement Pen Electrode for ST20 Pen Meters
- 30472285 – Electrode Protection Cap for Water Analysis Electrodes
- 30088020 – Replacement Pen Electrode for ST10R Pen Meters
- 30681233 – Glass Flow Chamber, Water Analysis Spare Part
- 30693682 – Maintenance Kit for STDO11 Dissolved Oxygen Electrode
Applications
- pH, conductivity and ORP field testing
- Dissolved oxygen measurement
- Wastewater and environmental monitoring
- Aquaculture and pool water checks
- Electrode storage and maintenance
