grillo · andygrillo · Oct 1, 2026 · Oct 1, 2026 · Oct 1, 2026
diff --git a/docs/getting-started/choosing-your-sensor.md b/docs/getting-started/choosing-your-sensor.md
@@ -9,7 +9,7 @@ title: Choosing Your Sensor
 | Measures | Earthquakes, from small to strong | Strong ground shaking | Slow ground movement |
 | Sensors | Vertical geophone and three-axis accelerometer | Three-axis accelerometer | RTK GNSS |
 | Connectivity | Cellular or Ethernet, by variant | Ethernet or Wi-Fi | LTE at the base; rovers use a radio mesh |
-| Power | 12 V DC | USB-C, 5 V | Internal battery with solar input |
+| Power | 12 V DC input; solar through your own charge controller and battery | USB-C, 5 V | Internal battery with solar input |
 | Readings | Continuous, in real time | Continuous, in real time | Every 6 hours |
 | Data in the dashboard | Health; waveforms and earthquake detection with SISTEM | Health; waveforms and earthquake detection with SISTEM | Movement in mm, health, exports, raw GNSS files |
 | Firmware updates | By Grillo for now | Over the air from Grillo Cloud | Over the air |
@@ -18,18 +18,24 @@ title: Choosing Your Sensor
 
 ## Grillo Pulse
 
-Choose Pulse for a seismic network that needs to record small earthquakes as well as strong ones, or for sites without mains networking. Pick the cellular or Ethernet variant to match the site.
+Choose Pulse for a seismic network that needs to record small earthquakes as well as strong ones. Pick the cellular variant for sites without a wired network, or the Ethernet variant where you have one.
+
+Pulse has a single 12 V DC input. It has no solar or battery input of its own: at an off-grid site, power it from a solar charge controller and battery system that supplies 12 V DC.
 
 [Install a Grillo Pulse →](/hardware/grillo-pulse)
 
 ## Grillo One
 
+![The Grillo One circuit board, with its USB-C power port, Ethernet port, and three status lights](/img/products/grillo-one.jpg)
+
 Choose One to add strong-motion stations where power and a network already exist, for example in buildings. It runs from USB-C power, and its hardware and software are open source.
 
 [Install a Grillo One →](/hardware/grillo-one)
 
 ## Grillo Slide
 
+![A white Grillo Slide rover and a black Grillo Slide base, each mounted on a post](/img/products/grillo-slide.webp)
+
 Choose Slide to monitor a slope for slow movement. One base on stable ground supports up to eight rovers on the ground being monitored. It runs on battery and solar, so it needs no mains power or network at the site, only mobile coverage at the base. See [Landslide Monitoring with GNSS](/concepts/landslide-monitoring).
 
 [Install a Grillo Slide →](/hardware/grillo-slide)
@@ -41,7 +47,7 @@ Confirm with Grillo:
 1. What you need to measure, and how sensitive it must be
 2. Indoor or outdoor installation
 3. Cellular, Ethernet, or Wi-Fi availability at the site
-4. Power and backup requirements
+4. Power and backup requirements, including whether you need a solar and battery system for Pulse
 5. Whether seismic data should go to Grillo or to your own server
 6. Whether you need the SISTEM add-on for earthquake detection
 

diff --git a/docs/hardware/grillo-pulse/index.md b/docs/hardware/grillo-pulse/index.md
@@ -17,11 +17,15 @@ Grillo Pulse runs from a 12 V DC supply. It cannot be powered from USB, and a US
 | Geophone | 4.5 Hz vertical, 24-bit converter. Channel `EHZ`. |
 | Accelerometer | Three-axis MEMS. Channels `HNZ`, `HNN`, `HNE` at 125 samples per second. |
 | Connectivity | **Pulse Cellular:** LTE Cat-1. **Pulse Ethernet:** 10/100 wired Ethernet through a weatherproof cable entry. |
-| Power | 12 V DC, through the external power connector |
+| Power | 12 V DC, through the external power connector. No built-in solar or battery input. |
 | Timing | Network time (NTP). GNSS receiver fitted. |
 | Status lights | Inside the enclosure only. Use Grillo Cloud to check the sensor. |
 | Managed in | [Grillo Cloud](/dashboard) |
 
+## Off-grid power
+
+Pulse has one power input: 12 V DC. It has no solar charger or battery connection of its own. For a site without mains power, use a solar charge controller and battery that together supply a steady 12 V DC to the Pulse. Size the panel and battery for the site's sunlight and for the days of autonomy you need, and ask Grillo Support if you need help.
+
 ## Two variants
 
 The two variants are the same sensor with a different connection. Check your order or the enclosure label to see which one you have.

diff --git a/docs/hardware/grillo-pulse/whats-in-the-box.md b/docs/hardware/grillo-pulse/whats-in-the-box.md
@@ -23,7 +23,7 @@ Photograph the label and QR code before installation. Once the sensor is mounted
 - **Pulse Ethernet:** a weatherproof Ethernet entry on the enclosure for your network cable
 - Mounting hardware, if ordered
 
-Do not assume a battery, solar panel, or mounting accessory is included unless it is on the packing list.
+Do not assume a battery, solar panel, or mounting accessory is included unless it is on the packing list. Pulse has no solar or battery input of its own; for an off-grid site, see [Off-grid power](/hardware/grillo-pulse#off-grid-power).
 
 ## Stop and contact support if
 

diff --git a/docs/support/faq.md b/docs/support/faq.md
@@ -42,7 +42,7 @@ For Pulse and One, the 12-character uppercase hexadecimal identifier on the sens
 
 ### How do I power each sensor?
 
-- **Grillo Pulse:** 12 V DC through the external power connector. Do not connect USB; it cannot power the sensor and a powered USB cable can damage it.
+- **Grillo Pulse:** 12 V DC through the external power connector. It has no solar or battery input; at an off-grid site, feed it 12 V DC from a solar charge controller and battery. Do not connect USB; it cannot power the sensor and a powered USB cable can damage it.
 - **Grillo One:** USB-C, 5 V. This is its only power input.
 - **Grillo Slide:** internal battery with a solar input.
 

diff --git a/static/img/products/grillo-one.jpg b/static/img/products/grillo-one.jpg
diff --git a/static/img/products/grillo-slide.webp b/static/img/products/grillo-slide.webp