Prism Monocle
Shows a readout for the NauTec block you are looking at.
Wear the monocle in your helmet slot or in its own Monocle curio slot. While it is on, looking at a NauTec machine or laser block shows its readout in the middle of the screen. It also clears the underwater fog, the same as the Diving Helmet.
Readouts
| Block | Shows |
|---|---|
| Any machine, relay, optic or other laser block | Power arriving (AP per tick) and Purity |
 Водный катализатор |
Duration: ticks the current fuel item has been burning |
 Бактериальный топливный элемент |
Output (AP per tick), Purity and Fuel, or No colony |
 Абиссальная кузня давления |
Any synthesizer fitted, then Under pressure, Acid (mb) and Purity, or what depth and water it still needs |
 Резонансная камера |
Charge, Ceiling and Purity, or Cracked while it cools down |
 Шлюз and its ring |
Its Address; whether it is open, ready, idle, out of power, held shut by redstone or blocked; whether it is a wild ring; and its stored power |
 Док морского разведчика |
Whether a Sea Scout is docked |
| Deep Sea Drain wall | Power and Fluid Stored |
 Пузырьковый якорь |
Its status, the field size, and the fuel left or what it ends as |
 Кислородный диффузор |
Its range while running, or the AP it needs |
 Преобразователь энергии |
AP sent, how many beams share it and the FE/t it costs, or why it is idle |
 Прививочная станция and  Продвинутый бактериальный анализатор |
Status, Power and Purity |
 Репликатор колоний |
Status, Replicate or Splice mode, and Biomass |
 Аплинк-решётка |
Its status |
Use it to check that a beam is arriving and pure enough before you blame a recipe. Purity drops a little when a weaker beam feeds the same block as a pure one.
A 
Резонансный амулет worn in a charm slot does the same job, so you do not need both. See Resonance Network.
With Jade
If Jade is installed it adds its own tooltips for some blocks: the Aquatic Catalyst's status, queued fuel, remaining ticks, AP per tick and what its beam reaches, plus the Mixer, Laser Junction, Deep Sea Drain, Confined Spawner, Crystal Cradle, Prismarine Crystal, Fusion Plant controller, Tidal Rotor, Thermal Vent Tap and Energy Converter.