Water quality stability is critical for aquaculture, swimming pool operation, drinking water safety and environmental monitoring. Minor fluctuations in dissolved oxygen, ammonia, nitrate and pH can trigger fish disease, stock loss and unsafe water conditions. Traditional single-parameter test strips and manual reagent kits feature low accuracy and cumbersome operation, failing to meet modern rapid detection demands. Driven by stricter global water safety standards, the pool and aquaculture water testing market is growing rapidly. The ERUN-SP4 Portable Multi-Parameter Water Quality Meter integrates multi-index detection, delivering laboratory-grade precision for fast, on-site water quality analysis across diverse scenarios.
Traditional water testing solutions have obvious drawbacks: single detection indexes, low efficiency, and manual color comparison errors that affect result accuracy. In contrast, the modern digital multi-parameter water tester supports simultaneous detection of DO, ammonia, nitrate, pH and other core indicators. Equipped with optical detection and Automatic Temperature Compensation (ATC) technology, it outputs precise numerical readings instantly without visual guesswork. It effectively eliminates manual errors, adapts to variable on-site water conditions, and requires minimal recalibration, perfectly fitting rapid field screening and daily routine monitoring.
Manufactured in an ISO 9001:2015 certified factory with strict quality control, the ERUN-SP4 multi-parameter water quality tester holds CE and RoHS certifications, complying with international health, safety and environmental standards for barrier-free global sales. Featuring an IP67 waterproof rugged design and backlit LCD display, it works stably in dim light and harsh outdoor environments. It covers full-range detection for common scenarios: DO 0.00–20.00 mg/L, ammonia nitrogen 0.00–50.00 mg/L, pH 0.00–14.00, suitable for shrimp farms, fish ponds, commercial swimming pools and more.
This all-in-one water quality meter breaks the limitation of single-scene pool testers, serving multiple industries. For commercial aquaculture, it monitors DO, ammonia and nitrite in real time to prevent fish mortality and optimize feeding management. For swimming pools and spas, it detects pH, chlorine and nitrate to avoid chloramine formation and ensure water safety. It also applies to wastewater treatment, drinking water verification, hydroponics and laboratory research, reducing equipment procurement and maintenance costs.
Engineered for professional field detection, the ERUN-SP4 integrates premium hardware and user-friendly functions:
Multi-index simultaneous detection: Tests DO, ammonia nitrogen, nitrate, sulfate, pH and temperature in one handheld device.
High-precision optical sensing: Imported LED light source and silicon photoelectric sensor ensure stable readings, anti-interference to ambient light and water turbidity.
Automatic Temperature Compensation: Guarantees accurate data in variable water temperature environments.
Easy operation: 240×160 dot-matrix backlit LCD screen with simple menu navigation for all operators.
Mass data storage: Saves up to 9999 detection records, supporting data review, export and report generation.
Complete supporting kits: Equipped with full set of reagents, electrodes and accessories for immediate use after delivery.
Durable & portable: Lightweight 500g body, IP67 waterproof design, suitable for outdoor and marine field sampling.
Independent calibration curves: 250 factory default curves + 749 user-defined curves, with password-protected system settings and one-key factory reset.
Safe power supply: 7.4V 1500mAh rechargeable lithium battery with Type-C charging and power failure data protection.
ISO 9001, CE and RoHS certifications are essential for cross-border water testing equipment. CE certification ensures compliance with EU safety and environmental standards for free market circulation. RoHS certification confirms zero hazardous substances, avoiding customs rejection. ISO 9001 standardized production ensures consistent product quality and long-term reliability. For government agencies, aquaculture enterprises and pool service companies, these certifications eliminate regulatory risks and guarantee credible product quality.
To sustain high accuracy and long service life, rinse probes with distilled water after each use, store the device in a dry environment, and calibrate the pH probe regularly. Keep the optical window clean and scratch-free. For pool testing, sample 18 inches below the water surface away from return jets. For aquaculture monitoring, fix daily testing time and wait for ATC stabilization to obtain accurate trend data.
Ditch inefficient traditional testing methods. The ERUN-SP4 Portable Multi-Parameter Water Quality Meter delivers high-precision, cost-effective and compliant detection solutions for swimming pool management, aquaculture farming and environmental field monitoring.
Contact ERUN now for customized water testing solutions and professional technical support.
ERUN Environmental Protection Technology: ISO 9001, CE & RoHS certified manufacturer of professional water quality monitoring instruments for global aquaculture, pool, drinking water and environmental applications.
