# Bluelab pH Pen: specs and price

**Price (US):** $99 at bluelab.com (Current price on bluelab.com (manufacturer direct, USD + tax)), as of 2026-08-12. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 11 ph meters we track it is #4 cheapest of 11; category median $124.
**Brand:** Bluelab

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $99 |
| Brand | Bluelab |
| Ph range | 0.0 to 14.0 |
| Resolution ph | 0.1 |
| Accuracy ph | ±0.1 at 25°C/77°F |
| Calibration points | Two-point (pH 7.0 and pH 4.0 solutions), with a built-in 30-day calibration reminder |
| Atc | Yes, fully temperature compensated |
| Electrode type | Double-junction pH probe |
| Waterproof rating | Waterproof; floats in any solution |
| Battery type | 1 x AAA alkaline |

## Where it stands

At $99, the Bluelab pH Pen is #4 cheapest of the 11 ph meters we track, where the median is $124.

## Frequently asked questions

**How much does the Bluelab pH Pen cost?**

The Bluelab pH Pen has a US price of $99 (Current price on bluelab.com (manufacturer direct, USD + tax)), as of 2026-08-12.

**How does the Bluelab pH Pen compare on price?**

At $99, the Bluelab pH Pen is #4 cheapest of the 11 ph meters we track, where the median is $124.

**What are the Bluelab pH Pen's key specs?**

Bluelab pH Pen (Bluelab): ph range 0.0 to 14.0, resolution ph 0.1, accuracy ph ±0.1 at 25°C/77°F, calibration points Two-point (pH 7.0 and pH 4.0 solutions), with a built-in 30-day calibration reminder, atc Yes, fully temperature compensated. Full sourced spec sheet verified 2026-08-12.

Source: https://www.bluelab.com/products/bluelab-ph-pen (bluelab.com, accessed 2026-08-12)
Canonical: https://frontdeskreview.com/product/ph-meters/bluelab-ph-pen/
Cite: Per The Front Desk Review, the Bluelab pH Pen price of record was $99 as of 2026-08-12 — https://frontdeskreview.com/product/ph-meters/bluelab-ph-pen/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl