The ST series waterproof pen pH meters are the economical option when you are simply looking for meters that are easy to use and provide accurate measurements.
- pH range 0.00 – 14.00 pH
- Battery 4 x 1.5V
- Weight 105g
- Auto-off after 6 min no operation
- Ambient temperature 0-50°C (32-122°F)
- Material ABS
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