---
product_id: 652389574
title: "ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs)"
brand: "gain express"
price: "฿3931"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/652389574-orp-redox-meter-tester-1999-1999mv-1-point-calibration-oxidation
store_origin: TH
region: Thailand
---

# Wide range ±1999mV 30ml solution x2 bottles Precise 256mV calibration ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs)

**Brand:** gain express
**Price:** ฿3931
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead in water quality—measure like a pro, every time!

## Quick Answers

- **What is this?** ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs) by gain express
- **How much does it cost?** ฿3931 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/652389574-orp-redox-meter-tester-1999-1999mv-1-point-calibration-oxidation)

## Best For

- gain express enthusiasts

## Why This Product

- Trusted gain express brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Lightweight 118g design fits seamlessly into your professional toolkit
- • **Dual Solution Bottles:** Two 30ml bottles ensure long-lasting, consistent measurement accuracy
- • **Versatile Water Testing:** Perfect for aquariums, pools, and any aquatic environment needing optimal health
- • **Ready-to-Use Calibration:** Includes 1-point 256mV calibration solution for instant, reliable setup
- • **Precision at Your Fingertips:** Accurate ORP readings from -1999 to 1999mV for flawless water quality control

## Overview

The ORP Redox Meter Tester by Gain Express offers precise oxidation-reduction potential measurements within a broad ±1999mV range. Featuring a 1-point 256mV calibration solution (2 x 30ml bottles), it ensures reliable, consistent water quality monitoring for aquariums, pools, and other aquatic systems. Battery-powered and compact, this tool is essential for professionals demanding accuracy and ease of use.

## Description

ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs)

## Features

- High-quality ORP calibration solution with a precise 256mV reading
- Easy to use with a 30ml bottle and clear instructions
- Accurate measurements for aquariums, pools, and other water applications
- Reliable and consistent results for optimal water quality control
- Essential for maintaining healthy aquatic environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | GAIN EXPRESS |
| Power Source | Battery Powered |
| Colour | ORP Sol'n 30ML x 2pcs |
| Measurement Type | Millivolts |
| UPC | 600316551373 |
| Manufacturer | Gain Express Holdings Ltd |
| Country of Origin | USA |
| Model number | ORP-256MV_2PCS |
| Item Weight | 118 g |
| Package Dimensions | 9.8 x 9.6 x 5.41 cm; 118 g |
| Item model number | ORP-256MV_2PCS |
| Are batteries included? | No |

## Product Details

- **Brand:** GAIN EXPRESS
- **Power Source:** Battery Powered
- **Colour:** ORP Sol'n 30ML x 2pcs
- **Measurement Type:** Millivolts
- **UPC:** 600316551373

## Images

![ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs) - Image 1](https://m.media-amazon.com/images/I/61sat-i4LpL.jpg)

## Frequently Bought Together

- Gain Express ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs)
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**Shop now:** [https://www.desertcart.co.th/products/652389574-orp-redox-meter-tester-1999-1999mv-1-point-calibration-oxidation](https://www.desertcart.co.th/products/652389574-orp-redox-meter-tester-1999-1999mv-1-point-calibration-oxidation)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-26*