Bante 221 pH/ORP Portable
A handheld with benchtop-class accuracy and an ORP electrode in the box, for water-treatment and lab work away from the bench.
Amazon $350$350
The Bante 221 pH/ORP Portable is the better ph meter overall, rated 4.0 to 3.1. The Bante 221 pH/ORP Portable leads on accuracy, calibration and features. The Bluelab Combo Meter wins on price. The Bluelab Combo Meter costs $70.01 less ($279.99 vs $350).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Bluelab Combo Meter
A grower’s meter for checking pH and nutrient strength in reservoirs. It has the longest warranty here.
Amazon $279.99$279.99
Which should you buy?
- Choose the Bante 221 pH/ORP Portable for accuracy (±0.002 pH vs ±0.1 pH), calibration (5-point calibration vs 2-point calibration) and features (replaceable probe, automatic temperature compensation, stores readings vs replaceable probe, automatic temperature compensation).
- Choose the Bluelab Combo Meter for price ($279.99 vs $350).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every portable meters ph meter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Bante 221 pH/ORP Portable | Bluelab Combo Meter |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Accuracy 30% | 100 ±0.002 pH | 19 ±0.1 pH |
| Calibration 15% | 100 5-point calibration | 50 2-point calibration |
| Features 20% | 75 replaceable probe, automatic temperature compensation, stores readings | 55 replaceable probe, automatic temperature compensation |
| Extra readings 10% | 70 ORP | 70 conductivity (EC/TDS) |
| Price 15% | 23 $350 | 33 $279.99 |
| Warranty 10% | 0 warranty not published, scored as none | 100 5-year meter warranty |
Specifications
| Bante 221 pH/ORP Portable | Bluelab Combo Meter | |
|---|---|---|
| pH measurement | ||
| Accuracy | ±0.002 pH | ±0.1 pH |
| Resolution | - | 0.1 pH |
| Range | - | 0 to 14 pH |
| Calibration | 5-point | 2-point |
| Temperature compensation | Yes | Yes |
| Other readings | ||
| Conductivity (EC/TDS) | No | Yes |
| ORP | Yes | No |
| Salinity | No | No |
| Build | ||
| Replaceable probe | Yes | Yes |
| Stored readings | 500 readings | - |
| Connectivity | USB | - |
| Meter warranty | - | 5 years |
| Probe warranty | - | 6 months |