SwitchFlo Automatic Water Level Controller

For overhead tanks, sumps and borewells. Single-phase and three-phase.

Designed and built
in Hyderabad, India

Model range

Model	Best for	Tanks managed	Motors	Sensors	Price
SwitchFlo Ultra ULTRA	For homes with multiple tanks and both sources	1 sump + 2 overhead	2	12 level + 2 dry-run	₹17,999 MRP ₹23,000
SwitchFlo Sump+ SUMPPLUS	Ideal for homes with sump and overhead tank	1 sump + 1 overhead	1	8 level + 1 dry-run	₹14,999 MRP ₹19,000
SwitchFlo Ground+ GROUNDPLUS	For borewell and ground water setups	1 overhead	1	4 level + 1 dry-run	₹12,999 MRP ₹16,500

Prices are inclusive of all taxes. Every model includes app and cloud access with no recurring subscription fee for normal residential use, and a SmartSwitch on a 7A relay at 230V AC.

System overview

Cutaway of a two-floor home showing a full SwitchFlo Ultra installation: two overhead tanks on the terrace with four sensors each, a sump tank with four sensors, a borewell with a submersible pump, two motors on the ground floor, and one cable from each tank running down to the controller at the switchboard.

SwitchFlo Ultra shown: two motors, two sources and two overhead tanks, with a bore pump feeding one tank and a sump pump feeding the other. Four level sensors go in each monitored tank, twelve in all here. Each motor also gets one dry-run sensor at its own source, two more on Ultra, which are not drawn above. That is how the borewell is protected in this configuration without being level-monitored. Counts for every model are in the range table above.

Controller

Motor types	Single & Three Phase
Voltage protection	195–260V AC default, adjustable 150–300V in the app
Operating temperature	0–55°C
Mounting	Wall-mount, enclosed unit

Connectivity

WiFi standard	2.4GHz 802.11 b/g/n (cloud models)
Mobile app	iOS & Android, free download
App & cloud access	Included, no recurring subscription fee for normal residential use
Offline operation	Motor automation and safety rules run without internet

Sensors

Level sensor type	Sealed magnetic float sensor. No electrical contact meets the water, so nothing corrodes and nothing needs calibrating
Level sensor placement	Immersed in the tank at the levels being read
Dry-run sensor	One per motor pump, at that motor's own water source. 2 with Ultra, 1 with Sump+ and Ground+
Dry-run sensor count	Additional to the level sensors, not part of the level sensor counts quoted above
Tank compatibility	Plastic (HDPE, PP), concrete and steel
Calibration	Not required

Package Contents

Controller unit	×1
Level sensors	4 per monitored tank (Empty / Low / High / Full). 12 with Ultra, 8 with Sump+, 4 with Ground+
Dry-run sensors	One per motor pump. 2 with Ultra, 1 with Sump+ and Ground+
Sensor wire bundle	Pre-fitted to every sensor. Included free for buildings up to 2 floors
SmartSwitch	×1. Schedule-controlled switch on a 7A relay at 230V AC
Mounting hardware	Screws and wall anchors
Documentation	Quick-start guide + warranty card

Protection

Dry-run protection	Each motor has its own dry-run sensor at its source. Cuts power when that source runs empty, after a confirmation delay you set
Overflow prevention	Motor stops the moment the tank reaches full level
Voltage cut-off	Blocks the motor while mains sits outside 195–260V AC by default, adjustable 150–300V
Voltage cut-off limits	Guards against sustained out-of-range supply. It is not a surge or lightning arrester, so fit a separate surge protector where spikes are common
Maximum run time	Hard per-motor ceiling. The motor stops at its limit even if every other rule fails

Control logic

Level automation	Starts on low level, stops on full, read continuously from the tank sensors
Time schedules	Up to 5 start windows per motor, kept by the onboard real-time clock
Linked tanks	Tanks joined by a pipe are treated as one system. With two motors (Ultra), you set which runs first, and the other starts if that one cannot
Manual override	Start and stop on demand from the app or at the controller
Event history	Every start, stop and the reason behind it is logged and retained
Alerts	In-app and push notification

Behaviour without internet

Level automation	Runs fully on the device
Dry-run and safety rules	Run fully on the device
Time-of-day schedules	Need WiFi to sync the clock. A permanently offline unit runs on tank levels only
App and remote control	Require WiFi on cloud-connected models

Mobile application

SwitchFlo app home screen showing two overhead tanks at 25 percent, a sump at 100 percent, and start controls for both motors — Home Live level for every tank and the sump, motor status, and start or stop for each motor.

SwitchFlo app configuration screen showing motor start windows for two tanks and a SmartSwitch schedule — Configuration Start windows per motor, up to five each, plus the SmartSwitch schedule.

SwitchFlo app alerts screen listing tank full and motor on or off events with timestamps — Alerts Every start and stop with the reason recorded, kept thousands of entries deep.

Platforms	iOS on the App Store and Android on Google Play. Free download
Live readings	Level for every tank and the sump, motor status, and mains voltage
Remote control	Start and stop each motor, and switch any motor between auto and manual
Schedules	Up to 5 start windows per motor, set per tank
Alerts	In-app and push notification
History	Every start and stop recorded with the reason for it, thousands of entries retained
SmartSwitch	On, off and scheduled from the same app
Requires	A cloud-connected model and 2.4GHz WiFi at the controller

Download at tiotlabs.com/switchflo/app/, or search SwitchFlo on the App Store or Google Play.

Before ordering: tank measurements

Diagram showing how to measure the inner height of an overhead tank and a sump, with the sensor rod suspended inside each tank

Sensors are cut to the tank. Measure the inner height of each monitored tank and send the figures with the order, and the sensor assemblies are made up to match.

Installation requirements

Installed by	A qualified electrician, at the existing electrical panel
Pump replacement	Not required. SwitchFlo works with the pump already installed
Supply types	Single-phase and three-phase
Sensor mounting	Sensors are lowered into the tank at the levels being read. Sealed against the water, so there is nothing to corrode and nothing to calibrate
Cable run	Wire bundle included free for buildings up to 2 floors. Taller buildings are sized on request before ordering
Network	2.4GHz WiFi at the controller for cloud-connected models. 5GHz is not supported

Warranty and commercial terms

Standard warranty	1 year, replacement for manufacturing defects. Shipping charges for a replacement may apply
Extended cover	+1 year for ₹2,500, or +2 years for ₹4,500, added at the time of purchase
Not covered	Physical damage, incorrect installation, or mains supply outside the rated input range
Shipping	Free across India. Dispatched in 1–2 business days, delivered in 3–5 business days to major cities
Returns	30 days on unused stock
Support	Direct from the Tiotlabs team, by phone and WhatsApp, anywhere in India

Tiotlabs

Hyderabad, Telangana, India
tiotlabs.com/switchflo/

Sales and technical enquiries
+91 90638 82298

Specification revision
6 October 2026

Prices and MRPs are inclusive of all taxes and current as of the revision date above. Specifications may change as the product is improved. Confirm current details before quoting a project.