Watchlog Bluetooth

About this app

What's new

Version 4.4.0 · Apr 8, 2026

Calculation channels Two new calculation channels are now available from the Calc button in the live screen. - A-B Differential — shows the real-time difference between two connected pressure sensors Power (PWR) — calculates hydraulic power (kW) from a pressure and flow sensor pair, with configurable efficiency - Both channels can be given a custom name and colour, edited after creation, and removed. Your configuration is saved and automatically restored the next time you open the app with the same sensors connected. Independent Y-axis per sensor Each sensor tile (and calc channel tile) in both the devices and live screens now has a Y button. Tapping it gives that sensor its own independent Y axis on the graph, preventing a wide-range sensor (such as temperature) from compressing the graph line of a narrow-range one (such as pressure). The Y button is hidden when only one sensor is connected. Edit sensor settings from the live screen Sensor tiles in the live screen can now be tapped to open the sensor settings (name, unit, colour) directly, without having to navigate back to the devices screen. Improvements - The Live button is now always visible on the devices screen, greyed out when no sensors are connected, so it's clear the feature exists - The record button flashes red on the graph screen while a recording is in progress - After completing sensor setup, the app now automatically connects to the sensor - Tapping Cancel during a recording now asks for confirmation before discarding the data - PDF reports now show a place name (e.g. "Birmingham, UK") instead of raw GPS coordinates Bug fixes - Pressure values below zero (e.g. -0.5 bar) now display correctly on the graph — previously the graph line would never go below 0 - File export (CSV and PDF) on Android now works correctly across all Android versions - Sensors with the MD prefix are now recognised and connectable