Commerce · alternatives · 2026
24 alternatives to SDL400 Light Meter with Data Logger
Precision light meter with SD card logging
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
- 2
Precision exposure for film photography with your phone
2024 · its alternatives →
- 3
- 4
- 5
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 →
- 6LC
2018 · github.com · its alternatives →
- 7
- 8
- 9
- 10AP
2020 · anyleaf.org · its alternatives →
- 11
- 12YA
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 →
- 13
Battery info program for x86-64 Linux laptops in 307 bytes of machine code - meribold/btry
Apr 2026 · github.com · its alternatives →
- 14
- 15
- 16
Highly accurate, fast and easy-to-use laser measurement tool
2018 · its alternatives →
- 17
Lightweight system monitor for Linux VPS. Contribute to leodeim/vpsmon development by creating an account on GitHub.
17d ago · github.com · its alternatives →
- 18
A handheld device for capturing power quality measurements
2018 · its alternatives →
- 19AL
I have always wanted cool features in Linux because I use it day to day as my OS. I have always wanted to implement this feature and do it properly: one that automatically adjusts keyboard and LCD backlights using data from the Ambient Light Sensor. I enjoy low-level programming a lot. I delved into writing this program in C. It came out well and worked seamlessly on my device. Currently, it only works for keyboard lights. I designed it in a way that the support for LCD will come in seamlessly in the future. But, in the real world, people have different kinds of devices. And I made sure to…
Nov 2025 · github.com · its alternatives →
- 20LO
2016 · github.com · its alternatives →
- 21MT
2018 · github.com · its alternatives →
- 22
Simple free Light Meter app for measuring light illuminance
2019 · its alternatives →
- 23FS
2017 · github.com · its alternatives →
- 24
Accuretly measure LUX, PAR, PPFD and DLI with your phone
2024 · its alternatives →
Also compare
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 →