Petkit Purobot Crystal

The Petkit Purobot Crystal is a self-cleaning litter box for crystal litter with a built-in camera, a deodorizing spray unit, and health monitoring features. Localkit exposes its full feature set as Home Assistant entities via MQTT.

No speaker

The device has no speaker — voice and volume settings exist in the firmware but are not exposed.

Installation

Localkit is installed through the Provisioning entry in the Web UI navigation. Once provisioning has succeeded, you are asked for a script — run the install script from the device shell over telnet (see How to connect):

wget -qO- http://tool.localkit.io/scripts/t7/2.0.0/install | sh

To remove Localkit again:

wget -qO- http://tool.localkit.io/scripts/t7/1.0.0/uninstall | sh

The script downloads all necessary files, places them in the correct directory, and patches the app-run script. Reboot the device afterwards to activate the changes.

Supported Features

• ✅ Automatic and manual cleaning cycles
• ✅ Deodorizing spray (auto, deep, manual)
• ✅ Lightning (UV) cleaning
• ✅ Litter leveling
• ✅ N60 deodorant crystal and cardboard tray consumable tracking
• ✅ Kitten protection mode
• ✅ Delayed cleaning and cleaning interval configuration
• ✅ Camera control (enable/disable)
• ✅ Snapshots and pet visit detection
• ✅ Health monitoring (urine pH detection, occult blood detection, loose stool recognition)
• ✅ Toilet video recording
• ✅ Bluetooth Proxy

Actions (Buttons)

These appear as Button entities in Home Assistant.

Name	Technical Name	Description
Start Cleaning	action_cleaning_start	Starts a cleaning cycle (only available when the device is idle)
Deodorize	action_deodorize	Triggers the deodorizing spray
Level	action_level	Levels the litter
Start Lightning	action_start_lightning	Starts the lightning (UV) unit
Stop Lightning	action_stop_lightning	Stops the lightning (UV) unit
Reset N60	action_reset_n60	Resets the N60 deodorant crystal counter after replacement
Reset Cardboard	action_reset_cardboard	Resets the cardboard tray counter after replacement

Sensors (Read-only)

These appear as Sensor entities in Home Assistant under the diagnostic category.

Name	Technical Name	Unit	Description
Device Status	device_status	—	Current working state: IDLE, CLEANING
Error	error	—	Active error (e.g. door_closed) or Ok
IP Address	ip_address	—	The device's local IP address
Last Used By	last_used_by	—	Pet detected at the litter box, if known
Hertz	hertz	—	Camera frequency setting
Scheduled Cleaning	fixed_time_clear	—	Scheduled cleaning state
Next N60 Change in Days	n60_durability_in_days	d	Days remaining until the N60 crystal should be replaced
Next Cardboard Change in Days	cardboard_durability_in_days	d	Days remaining until the cardboard tray should be replaced

Binary Sensors (Read-only)

These appear as Binary Sensor entities in Home Assistant under the diagnostic category.

Name	Technical Name	Device Class	Description
Light	lightning	light	true while the lightning (UV) unit is running
Share Open	share_open	—	Firmware share flag
Multi Config	multi_config	—	Firmware multi-config flag
Auto Upgrade	auto_upgrade	—	Firmware auto-upgrade flag

Snapshot

The most recent snapshot appears as an Image entity in Home Assistant.

Name	Technical Name	Description
Snapshot	last_snapshot	The latest image captured from the camera

Switches

These appear as Switch entities in Home Assistant under the config category.

Name	Technical Name	Default	Description
Auto Cleaning	auto_work	On	Enables automatic cleaning after each toilet visit
Avoid Repeated Cleaning	avoid_repeat	On	Skips cleaning if the litter was barely disturbed
Kitten Protection	kitten	Off	Prevents cleaning while a kitten is inside
Tumbling	tumbling	—	Tumbling action during cleaning
Camera Switch	camera	On	Enables or disables the camera module
Microphone	microphone	On	Enables or disables the built-in microphone
Night Vision	night	Off	Switches the camera to infrared night vision mode
Timestamp Display	time_display	Off	Overlays the current time on the camera image
Camera Light	camera_light	—	Camera indicator light
Microphone Indicator Light	microlight	—	Microphone indicator light
Indicator Light	wifi_light_assist	—	Status indicator light
Light Assist for Cleaning	light_assist	—	Illuminates the box during cleaning
Light Assist for Toileting	toilet_light_assist	—	Illuminates the box during toilet visits
Child Lock	manual_lock	Off	Locks the physical buttons on the device
Auto Deodorizing	auto_spray	On	Sprays automatically after toilet visits
Deep Deodorizing	deep_spray	—	More thorough deodorizing cycle
Urine pH Detection	urine	—	Detects the urine pH of the litter
Occult Blood Detection	occult	—	Detects occult blood in the litter
Loose Stool Recognition	soft_mode	—	Recognizes loose stool consistency
Soft Mode Clean	soft_mode_clean	—	Adjusts the cleaning behavior for soft stool
Toilet Video Recording	toilet_detection	—	Records video of toilet visits
Move Detection	move_detection	On	Enables motion detection
Pet Appearance Detection	pet_detection	On	Enables pet detection at the litter box

Number Controls

These appear as Number entities in Home Assistant under the config category.

Name	Technical Name	Range	Step	Default	Description
Litter Replacement Cycle	sand_tray_standard_day	0–90	1	45	Days after which the crystal litter should be replaced
N60 Durability	n60_durability	0–90	1	—	Expected lifespan of the N60 crystal in days
Cardboard Durability	cardboard_durability	0–90	1	—	Expected lifespan of the cardboard tray in days
Move Sensitivity	move_sensitivity	0–9	1	—	Sensitivity of the motion detection
Pet Appearance Sensitivity	pet_sensitivity	0–9	1	—	Sensitivity of the pet detection
Detection Interval	detect_interval	0–300	1	—	Minimum seconds between detections

Select Controls

These appear as Select entities in Home Assistant under the config category.

Name	Technical Name	Options (seconds)	Default	Description
Time Interval Of Each Cleaning	auto_interval_min	0, 30, 60, 300, 600, 900, 1800, 3600	—	How often a cleaning cycle runs
Delayed Cleaning	still_time	0, 30, 60, 300, 600, 900, 1800, 3600	1200	Wait time after a visit before cleaning starts

How to connect

To access the device:

1. Connect to the device via telnet: telnet <device-ip>
2. Log in with user root and password while(&P.