Dev tools · alternatives · 2026
24 alternatives to FJDynamics Digital Refractometer
Test Brix, Salinity and TDS
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. FJDynamics Digital Refractometer launched in 2022; newer entries below may have overtaken it.
- 1
Digital Brix Refractometer, Brix Refractometer, FJDynamics
2022 · its alternatives →
- 2IB
2020 · balena.io · its alternatives →
- 3
- 4
- 5YD
If you've built any web-based app in the last 15 years, you probably used something like Datadog, New Relic, Sentry, etc. to monitor and trace your app, right? Why should it be different when the app you're building happens to be using LLMs? So today we're open-sourcing OpenLLMetry-JS. It's an open protocol and SDK, based on OpenTelemetry, that provides traces and metrics for LLM JS/TS applications and can be connected to any of the 15+ tools that already support OpenTelemetry. Here's the repo: https://github.com/traceloop/openllmetry-js A few months ago we launched…
2024 · github.com · its alternatives →
- 6
- 7
Quickly check food for allergens and intolerances with AR
2020 · its alternatives →
- 8
Easily monitor and track your oral health and hydration
2015 · its alternatives →
- 9
- 10
Glance ▲87Real browser for Claude Code Test, Screenshot, Automate
Mar 2026 · glance.debugbase.io · its alternatives →
- 11AA
2017 · anfractuosity.com · its alternatives →
- 12
- 13YA
Hi HN, I'm developing an open-source water meter for Home Assistant and thought the HN community might be interested. I've been using some version of it after a few costly toilet leaks that my city meter missed. Recently, I decided to polish it up so others could use it. It might also function as a gas meter reader (https://youtu.be/9Dso4EBAoiE), but this is still experimental. The device runs on 3 AA batteries and utilizes an ESP32-S3. It works by measuring the spinning magnet inside the brass housing. It stays in deep sleep until it needs to transmit usage or leak…
2023 · hackaday.io · its alternatives →
- 14OH
2021 · github.com · its alternatives →
- 15OA
This has been a pet project of mine for the past ~5 months. It consists of six visualizations: - Spectrogram: Implements the reassignment method for sharper time and frequency resolution. - Spectrum analyzer: A-weighted, frequency guidelines, loudest frequency tooltip. - Waveform: Colored based on frequency, loudness, or static - Oscilloscope: Tracks pitch and autocorrelates against a reference signal, provides stability. Also includes a regular zero-crossing trigger. - Stereometer & Phase meter: Linear and exponential scaling modes, adjustable windows. Multi-band correlation meter. -…
Mar 2026 · github.com · its alternatives →
- 16
- 17
Research-backed microplastics scanner for food
Apr 2026 · apps.apple.com · its alternatives →
- 18
Free web-based tools for screen & monitor testing
Jan 2026 · screentest.io · its alternatives →
- 19
Advanced Raman Solutions for Real-World Applications
2025 · technosphotonics.com · its alternatives →
- 20FR
2023 · github.com · its alternatives →
- 21BC
https://blendful.com Hi everyone. I'm a technical founder who's built a MVP of a crowdfunding product intended to fund spectroanalysis testing on popular foods for contaminants, pesticides, herbicides, etc. Right now food products are a sort of black box, and consumers don't really know what they're getting. I'm looking to elucidate those details. Warmly looking for feedback and/or ideas if you find this useful. Also would be interested in partnerships/cofounders (biz dev/marketing help especially). Thanks so much for reading!
2020 · its alternatives →
- 22
Widely used in medicine, food, organic chemical industry,
2023 · its alternatives →
- 23
Scroll-following live glass refraction with pure CS
Jun 2026 · codequest.work · its alternatives →
- 24
It is an ideal device for measuring the concentration
2023 · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →