Lovibond® SD20 ORP Meter / ORP Pocket Tester | -1000 to +1000 mV | IP67 Waterproof | Portable Redox Meter
Product Brochure
For more details about this product, download the brochure.
Description
The Lovibond® SD20 ORP Pocket Tester is a compact, waterproof electrochemical meter designed for rapid measurement of Oxidation-Reduction Potential (ORP/Redox) in water. It offers a -1000 to +1000 mV measuring range, 1 mV resolution, automatic temperature compensation, one-point ORP calibration and a durable IP67 waterproof housing. It is suitable for field, industrial, pool, environmental and water-treatment applications.
Key Features
- ORP measuring range: -1000 to +1000 mV
- Resolution: 1 mV
- Accuracy: ±0.2% FS
- Temperature range: 0 to 50°C
- Temperature resolution: 0.1°C
- Temperature accuracy: ±0.5°C
- Automatic temperature compensation
- 1-point ORP calibration
- Adjustable calibration value within ±150 mV
- Standard recognition: +470 mV at 25°C
- IP67 waterproof protection
- Portable pocket-sized design
- Replaceable electrode design
- 3-colour backlit LCD
- Stability indicator
- Auto-hold function
- Alarm-limit function
- Powered by 4 × AAA batteries
- Battery life of more than 2,000 hours
- CE compliant
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Lovibond® |
| Model | SD20 ORP |
| Product Type | ORP / Redox Pocket Tester |
| Part Number | 720020 |
| Parameter | ORP |
| ORP Range | -1000 to +1000 mV |
| ORP Resolution | 1 mV |
| ORP Accuracy | ±0.2% FS |
| Temperature Range | 0 to 50°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Temperature Compensation | Automatic |
| Calibration | 1 point |
| Calibration Adjustment | ±150 mV |
| ORP Standard | +470 mV at 25°C |
| Electrode | Pt / Ag-AgCl, 3 M KCl reference |
| Display | 3-colour backlit LCD |
| Stability Indicator | Yes |
| Auto-Hold | Yes |
| Alarm Limits | Yes |
| Protection | IP67 |
| Power Supply | 4 × AAA batteries |
| Battery Life | >2,000 hours |
| Dimensions | 40 × 40 × 180 mm |
| Weight | Approx. 151 g |
| Operating Conditions | 0–60°C; up to 80% RH, non-condensing |
| Compliance | CE |
Specifications are based on Lovibond's published SD20 data.
Display & Operation
The SD20 uses a three-colour backlit LCD designed to make operation easy in the field:
- Blue: Measurement
- Green: Calibration
- Red: Alarm
The transparent protective lid can also provide a stable stand and facilitates electrode maintenance and storage.
Calibration
The SD20 provides one-point ORP calibration with an adjustable ORP value of ±150 mV. The specified reference standard is +470 mV at 25°C, using a Pt/Ag-AgCl system with 3 M KCl.
Applications
The Lovibond SD20 is suitable for:
- Water treatment plants
- Wastewater treatment
- Drinking-water testing
- Swimming pools & spas
- Industrial water monitoring
- Cooling-water monitoring
- Boiler-water monitoring
- Environmental water testing
- Municipal water applications
- Aquaculture
- Marine applications
- General laboratory and field ORP measurements
Lovibond specifically lists applications including boiler water, cooling water, drinking water, treatment pools, water control and wastewater treatment for its SD Pocket Tester range.
What is ORP?
Oxidation-Reduction Potential (ORP) measures the tendency of a solution to either gain or lose electrons. ORP is commonly expressed in millivolts (mV) and is useful for monitoring oxidation and reduction processes in water-treatment and disinfection applications.
Package / Standard Accessories
Depending on the supplied configuration, the SD20 kit may include:
- Lovibond SD20 ORP meter
- ORP electrode
- 4 × AAA batteries
- Lanyard
- Electrode/storage solution
- Storage/protective case or lid
- Operating instructions
- CE/conformity documentation
Shipping Info
We partner with premium logistics networks via Shiprocket to ensure your laboratory instruments and chemical indicators arrive safely, securely, and professionally packaged. Shipping timelines depend on the transit tier selected at checkout.
National Deliveries (Within India)
- Rush Delivery: Less than 2 business days
- Express Delivery: 2 to 5 business days
- Standard Delivery: Greater than 5 business days.