# Extech PH100 ExStik II Waterproof pH Meter: specs and price

**Price (US):** $124 at extech.com (Current Amazon retail price; extech.com does not display direct consumer pricing on its own product page), 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 #6 cheapest of 11; category median $124.
**Brand:** Extech Instruments

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $124 |
| Brand | Extech Instruments |
| Ph range | 0.00 to 14.00 pH |
| Resolution ph | 0.01 pH |
| Accuracy ph | ±0.01 pH |
| Calibration points | — |
| Atc | Yes, automatic |
| Electrode type | Flat-surface electrode (rated for liquids, semi-solids, and solids) |
| Waterproof rating | IP57 |
| Battery type | 4 x CR2032 3V button cell |

## Where it stands

At $124, the Extech PH100 ExStik II Waterproof pH Meter is #6 cheapest of the 11 ph meters we track, where the median is $124.

## Frequently asked questions

**How much does the Extech PH100 ExStik II Waterproof pH Meter cost?**

The Extech PH100 ExStik II Waterproof pH Meter has a US price of $124 (Current Amazon retail price; extech.com does not display direct consumer pricing on its own product page), as of 2026-08-12.

**How does the Extech PH100 ExStik II Waterproof pH Meter compare on price?**

At $124, the Extech PH100 ExStik II Waterproof pH Meter is #6 cheapest of the 11 ph meters we track, where the median is $124.

**What are the Extech PH100 ExStik II Waterproof pH Meter's key specs?**

Extech PH100 ExStik II Waterproof pH Meter (Extech Instruments): ph range 0.00 to 14.00 pH, resolution ph 0.01 pH, accuracy ph ±0.01 pH, atc Yes, automatic, electrode type Flat-surface electrode (rated for liquids, semi-solids, and solids). Full sourced spec sheet verified 2026-08-12.

Source: https://www.extech.com/products/PH100 (extech.com, accessed 2026-08-12)
Canonical: https://frontdeskreview.com/product/ph-meters/extech-ph100/
Cite: Per The Front Desk Review, the Extech PH100 ExStik II Waterproof pH Meter price of record was $124 as of 2026-08-12 — https://frontdeskreview.com/product/ph-meters/extech-ph100/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl