---
product_id: 42056550
title: "3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use"
brand: "tekcoplus"
price: "₪139"
currency: ILS
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.il/products/42056550-3-in-1-clinical-refractometer-with-atc-for-tri-scale
store_origin: IL
region: Israel
---

# LED light included Precision accuracy 3-in-1 testing 3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use

**Brand:** tekcoplus
**Price:** ₪139
**Availability:** ✅ In Stock

## Summary

> 🔍 Discover Your Health's Secrets!

## Quick Answers

- **What is this?** 3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use by tekcoplus
- **How much does it cost?** ₪139 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/42056550-3-in-1-clinical-refractometer-with-atc-for-tri-scale)

## Best For

- tekcoplus enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium aluminum and rubber for durability and style.
- • **Lightweight & Portable:** Designed for convenience, take your health assessments anywhere!
- • **Health Monitoring Made Easy:** Stay ahead of your health game with this versatile refractometer!
- • **Precision at Your Fingertips:** Achieve accurate readings with a division of 0.2 g/100ml for serum protein.
- • **Temperature Compensation Technology:** Automatic temperature compensation ensures reliable results every time.

## Overview

The 3-in-1 Clinical Refractometer is a cutting-edge device designed for human use, allowing for precise testing of urine specific gravity, serum protein levels, and refractive index. With a range of 0-12 g/100ml for serum protein and a specific gravity range of 1.000-1.050, this refractometer features automatic temperature compensation for accuracy, a lightweight design for portability, and includes a USB LED light for easy reading.

## Description

3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use

## Features

- HUMAN CLINICAL REFRACTOMETER : 3-in-1 Human clinical refractometer for testing the health index of urine specific gravity and serum protein or Refractive index for Human
- REFRACTOMETER RANGE: Serum protein: 0 - 12 g/100 ml ; Urine specific gravity: 1.000 - 1.050 ; Refractive index: 1.333 -1.360 RI
- DIVISION: Serum protein: 0.2 g/100ml ; Urine specific gravity: 0.005 ; Refractive index: 0.0005 RI
- ACCURACY: Serum protein: -0.2/+0.2 g/100ml ; Urine specific gravity: -0.005/+0.005 ; Refractive index: -0.0005/+0.0005 RI
- MULTIFUNCTIONAL: Features automatic temperature compensation (ATC) and comes with Portable USB LED Light,Lightweight, Made with highest and finest quality of aluminum & rubber

## Images

![3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use - Image 1](https://m.media-amazon.com/images/I/71bwP0R8gKL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Does it measures the serum protein in calves?**
A: It does have a serum/plasma protein scale on it. You have to use serum or plasma to get that value, not urine.

**Q: How come I don't see any blue area?  I used distilled water and wanted to calibrate , its all white when looking through eyepiece.!!**
A: Yes the instructions are correct in  that you use distilled water and then adjust the instrument using the knob on top.   Distilled water has a Refractive Index (RI) of 1.333 and a Specific Gravity (SG) of 0.   That is why 1.333 on the left side of the scale (the graduations labled "RI") line up with 0.000 on the right side of the scale (the grads labled "SG").

=== !!!! NOT IN SUPPLIED INSTRUCTIONS!!!! =====
The first time you calibrate the instrument you may need to remove the rubber cap/cover from the adjust knob on top the device.   Follow the calibration instructions exactly.   If you cannot see a clear dividing line between Blue and White then very very gently and carefully use the supplied screwdriver to adjust the screw UNDERNEATH the knob's cover.
=============================

**Q: What is the difference between the two products retk-71 and retk-70?**
A: I have the retk-71.  It is a veterinaery refractometer that measures USG for dogs/large animals and cats (separate scales) as well as serum protein.  The retk- 70 has one scale for USG (for humans, dogs, cats) and measures USG, serum protein and refractive index (don't know what that is).   The ranges and divisions are different on the two refractometers (compare the specifications toward the bottom of each description).  I use the retk-71 only for USG testing of my cats.

**Q: Do I must use distilled water to calibrate the refractometer?**
A: Do not use distilled water; a refractometer calibration liquid is required.

## Customer Reviews

### ⭐⭐⭐⭐⭐ robust instrument for the moneh
*by D***T on January 16, 2021*

I am quite pleased with how this instrument is constructed for a mere $20 or so complete with nice box and accessories! One cannot buy much for $20 in this day and age that is well built.It is easy to operate, just make sure you are using the correct scale on the screen! If you are after urine specific gravity like I was, then make sure you use that scale and not the others! Make sure you calibrate it to "0" using that scale as well! As far as the physician on here giving it a bad rating because of scale confusion, I say, hey, think and do some research in which scale is needed before condemning the instrument. It isn't exactly rocket science of which scale to use depending on your needs. This is a multi-purpose instrument after all.

### ⭐⭐⭐⭐⭐ Very helpful
*by J***J on August 6, 2019*

Our veterinarian suggested I get a refractometer to check the gravity of my oldest dog’s urine. She’s been having issues for a while now. I decided on this one and it works great! I’m glad I decided on this one. The seller is so kind and helpful as well. Thank you :)

### ⭐⭐⭐⭐ Does the job
*by C***K on January 22, 2020*

I used it to test my kitty urine gravity. Could save lots of money vs. Vet’s lab report.

## Frequently Bought Together

- 3-in-1 Clinical Refractometer with ATC for Tri-Scale Serum Protein 0-12 g/100ml Urine Specific Gravity SG 1.000-1.050 Refractive Index 1.333-1.360RI w/Extra LED Light & Pipette for Human Use
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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-11*