HM-SDX Water Toxicity Detector

Product Introduction

The HM-SDX is a handheld water toxicity detection instrument designed for rapid field screening of water quality threats using the luminescent bacteria bioluminescence inhibition method. When toxic substances contact luminescent bacteria (Vibrio fischeri), the bacterial light output decreases proportionally to toxicity concentration — the HM-SDX quantifies this inhibition to provide immediate qualitative toxicity assessment.

Weighing less than a standard smartphone at dimensions of 188×77×37mm, the HM-SDX brings laboratory-grade toxicity screening to field environments including water treatment plant patrols, emergency response situations, aquaculture monitoring, and environmental inspection operations. The 3500mAh rechargeable battery supports a full working day of continuous measurements without recharging.

The instrument offers three measurement modes in a single device: qualitative toxicity screening (luminescent bacteria inhibition), ATP bacteria counting (microbial contamination assessment), and combined screening mode. This multi-mode approach enables comprehensive water quality characterization from a single compact instrument, eliminating the need to carry separate devices for different analytical purposes.

Applications

• Drinking water source rapid toxicity screening

• Water treatment plant process monitoring and patrol testing

• Environmental emergency response and contamination event assessment

• Industrial wastewater discharge point spot checks

• Aquaculture and fishery water quality daily monitoring

• Distribution network integrity verification

• Swimming pool and recreational water safety testing

• Research field sampling and preliminary assessment

Functional Performance

1. Three-in-one measurement capability: qualitative toxicity + ATP bacteria count + combined screening in a single handheld device

2. 15-minute rapid qualitative toxicity result using luminescent bacteria bioluminescence inhibition method per GB/T15441-1995

3. Plug-in removable washable test tubes reduce per-test consumable costs and eliminate cross-contamination risk

4. 3.5-inch color display with intuitive graphical interface for clear result presentation in field conditions

5. 3500mAh lithium battery providing 8+ hours continuous field operation without external power

6. Ultra-compact form factor (188×77×37mm) enables true single-hand operation during field sampling

7. QR code data export for immediate result sharing and LIMS integration via mobile device

8. Built-in data storage with 500 measurement records for batch download and audit trail maintenance

9. Automatic dark adaptation measurement cycle eliminates need for separate dark chamber equipment

10. Operating temperature range 5-40°C supports year-round outdoor field deployment

Main Parameters

Parameter	Specification
Detection Method	Luminescent bacteria bioluminescence inhibition method
Measurement Modes	3 (Qualitative toxicity / ATP bacteria count / Combined)
Applicable Standard	GB/T15441-1995
Display	3.5-inch color screen
Battery	3500mAh rechargeable lithium
Dimensions	188 × 77 × 37 mm
Test Tubes	Plug-in removable washable type
Data Storage	500 records
Data Export	QR code to mobile device

Technical Parameters

Item	Specification
Detection Principle	Vibrio fischeri bioluminescence inhibition
Qualitative Result Time	15 minutes
ATP Detection	Integrated single-channel
Operating Temperature	5-40°C
Power Supply	Built-in 3500mAh Li-ion, USB-C charging
Continuous Operation	≥8 hours
Instrument Weight	<500g
IP Rating	Splash-resistant design for field use
Data Interface	QR code export, USB data download
Compliance	GB/T15441-1995

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