





























Recent Purchase
View All
Customer Reviews
Average Rating
4.0





4.0
2 global ratings
5 star
0%
4 star
100%
3 star
0%
2 star
0%
1 star
0%
All Reviews
Image
Recommend
Recent
1***m

Helpful (4)
My sweater is so soft and warm! Perfect for me to cuddle in around the house.
Mar.09.2025

Helpful (4)
Mar.09.2025
1***m

Helpful (3)
I received my order even before the expected date.
Jan.20.2025

Helpful (3)
Jan.20.2025
- 1
yieryi JPB-70A Portable Digital Pen Dissolved Oxygen Meter Water Quality Tester Dissolved Oxygen Detector Test Range 0-20 mg/l
$128$225.02-43.12%
Measurement Range:
0-20mg
Accuracy:
0.1mg
Quantity:
Add to Cart
Wishlist
Features
Precision Measurement
Accurate dissolved oxygen readings (0-20 mg/l) with advanced digital sensor technology, ensuring reliable water quality analysis for professionals and hobbyists.
Portable & Durable
Compact JPB-70A design features rugged ABS housing and splash-proof construction, ideal for field use in aquaculture, hydroponics, or environmental monitoring.
User-Friendly Operation
One-touch calibration and auto-temperature compensation (0-50°C) streamline testing, while the clear LCD displays real-time results with ±0.3 mg/l resolution.
Long-Lasting Performance
Includes replaceable oxygen-permeable membrane and low-power alert, backed by a 6-month battery life for uninterrupted use in labs or outdoor settings.
Multi-Scene Application
Essential for fish farms, wastewater treatment, and research—ensures optimal oxygen levels to sustain aquatic life and comply with industrial standards.
See More