# pH Meter TFA-Dostmann 31.3001.06

**URL:** https://aio.lv/en/product--dostmann-electronic-31300106--1852893
**Data updated:** 2026-01-06 11:06 (EET)
**Category:** Measuring tools
**Manufacturer:** dostmann electronic
**Manufacturer code:** 31.3001.06
**EAN:** 4009816032362
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 77.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 64.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dostmann-electronic-31300106--1852893

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The TFA-Dostmann 31.3001.06 pH meter features a measuring range of 0 - 60 pH, an LED display, and a compact design with dimensions of 225 mm x 35 mm x 20 mm. It operates on a 3V battery, making it portable and easy to use for various applications. Ideal for laboratory and field use, this pH meter provides accurate readings for precise measurements.

## Long description

The pH meter TFA‑Dostmann 31.3001.06 is a compact handheld instrument for measuring the acidity or alkalinity of aqueous solutions and the current temperature. It measures pH on the standard 0–14 scale and displays results on an LED screen. The built‑in thermometer provides automatic temperature compensation for more accurate pH readings. The device is splashproof to IP65 and powered by a 3V battery; its dimensions are 225 mm × 35 mm × 20 mm.
Advantages
The TFA‑Dostmann 31.3001.06 gives simultaneous pH and temperature readouts with automatic temperature compensation, a HOLD function to freeze measured values on the LED display, and simple calibration to maintain accuracy. Its splashproof IP65 rating allows cleaning under running water, and the compact, battery‑powered design supports portable use indoors and outdoors.
Suitable for
Aquarium and pond water testing
Drinking and heating water quality checks
Swimming pool water monitoring
Food and cosmetic production quality control
Laboratory and field measurements
Key specifications
Model: TFA‑Dostmann 31.3001.06
Brand: dostmann electronic
MPN: 31.3001.06
EAN: 4009816032362
Measuring range: pH 0–14
Display: LED
Temperature measurement with automatic compensation
Functions: HOLD, calibration
Ingress protection: IP65 (splashproof)
Power supply: 3 V battery
Dimensions: 225 × 35 × 20 mm
How to use
Remove the pH meter from its storage container and switch it on. Rinse the electrode with distilled or tap water and immerse it in the sample solution so that the electrode is covered. Wait until the reading stabilises, then press HOLD to freeze the displayed values if needed. After measurement, rinse the electrode and return the device to its storage container filled with the supplied special solution to prevent the electrode from drying out. Calibrate the meter regularly following the manufacturer’s instructions to ensure continued accuracy.
Usage recommendations
The pH results depend on temperature; use the automatic temperature compensation and calibrate the device before critical measurements. Clean the electrode after each use and store it in the supplied solution to extend electrode life. Avoid prolonged exposure to strong acids, bases or solvents that may damage the electrode.

## Specifications

| Feature | Value |
|---|---|
| Display | LED |
| Weight | 0.068 kg |
| Number of batteries supported | 2 |
| Power source | Battery |
| Height | 20 mm |
| Width | 225 mm |
| Depth | 35 mm |
| Battery voltage | 3 V |
| Housing material | Plastic |
| Housing colour | White |
| Measuring range (pH) | 0 - 60 |
| pH measurement accuracy (±) | 14 |

## FAQ

### How much does the pH Meter TFA-Dostmann 31.3001.06 cost, and is it available for purchase?

The price is 77.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All dostmann electronic products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized dostmann electronic service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/1852893/64188021_large.webp