Rangefinder and Laser Meter

Open the camera and tap the scope button left of the Photo | Video switch (with LiDAR and Thermal off). The ring reads the distance to whatever it sits on, out to about 5 m (16 ft): white in range, red past about 5 m or with no reading. Tap Shot (or volume up). Each reading keeps its distance, its angle up or down, and a photo of what the ring was on.

Go to Settings, Devices, turn on Meter and pick your meter. SpeleoMap remembers it and reconnects whenever it's on nearby. Supported: Huepar S-series (they show up as LDM-...). In beta: Tacheo 2, Cavway X1, BRIC4 / BRIC5, Bosch GLM C, Leica DISTO, Disto XBLE, Mileseey and Stanley TLM99s. Each has its own page with setup notes. Supported devices · 10.1 Laser Meters and Instruments

Meter back to back behind the phone, both screens facing you, tops the same way. The laser leaves the top edge of the phone, so you aim the phone like a remote.

Tap Meter on. The screen goes black and shows the last shot big, its angle and a live aim line. Tap Shot: the meter fires and the reading lands, with no 5 m limit. On iPhones without LiDAR the meter is always on. Put the meter in angle mode and its own tilt sensor gives the inclination; direction always comes from the phone. Meters or feet on the meter, either works. On meters that need two presses (Huepar), SpeleoMap turns the laser dot on as soon as the meter screen opens and again after each shot, so you can see where you're aiming before you fire.