---
product_id: 250454180
title: "Gain Express ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential (ORP Sol'n 30ML x 2pcs)"
brand: "gain express"
price: "B/.58"
currency: PAB
in_stock: true
category: "Gain Express"
url: https://www.desertcart.com.pa/products/250454180-gain-express-orp-redox-meter-tester-1999-1999mv-1-point
store_origin: PA
region: Panama
---

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

**Brand:** gain express
**Price:** B/.58
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead in water quality—calibrate like a pro, every time!

## Quick Answers

- **What is this?** Gain Express 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?** B/.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/250454180-gain-express-orp-redox-meter-tester-1999-1999mv-1-point)

## 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

- • **Dual Pack Convenience:** Two 30ml bottles ensure you’re always ready for quick, reliable recalibration.
- • **Effortless Calibration:** Clear instructions and easy-to-use solution bottles make professional-grade testing accessible to all.
- • **Precision You Can Trust:** Calibrate your ORP meter with an exact 256mV solution for flawless water quality readings.
- • **Optimized for Aquatic Health:** Maintain pristine water conditions in pools, aquariums, and labs with consistent ORP monitoring.
- • **Wide Measurement Compatibility:** Supports meters with a broad -1999 to 1999mV range, perfect for diverse aquatic environments.

## Overview

The Gain Express ORP Redox Meter Tester calibration kit includes two 30ml bottles of 256mV solution designed for precise calibration of ORP meters with a wide measurement range of -1999 to 1999mV. Ideal for maintaining optimal water quality in pools, aquariums, and scientific applications, this kit ensures reliable, consistent readings and easy, professional calibration.

## Description

This optional 256mv calibration solution 30ml is used for Digital Redox Meter -1999mV~1999mV Millivolts Pool Aquarium Oxidation Reduction Potential (ORP)Set includes.2 x solution 30ml

## 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 |
|---------------|-------|
| ASIN | B08J7NWH3V |
| Best Sellers Rank | #224,984 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #198 in Lab pH Meters |
| Brand Name | Gain Express |
| Color | ORP Sol'n 30ML x 2pcs |
| Customer Reviews | 4.3 4.3 out of 5 stars (30) |
| Manufacturer | Gain Express Holdings Ltd |
| Measurement Type | Millivolts |
| Model | ORP-256MV_2PCS |
| Number of Items | 2 |
| Number of Packs | 2 |
| Part Number | ORP Meter |
| Power Source | Battery Powered |
| UPC | 600316551373 |

## Product Details

- **Brand:** Gain Express
- **Color:** ORP Sol'n 30ML x 2pcs
- **Measurement Type:** Millivolts
- **Power Source:** Battery Powered
- **UPC:** 600316551373

## Images

![Gain Express 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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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-09-25*