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Sentinel Product Line

Two devices.
One system.

Purpose-built IoT hardware for Lagos drainage infrastructure — solar-powered, IP68 rated, deployed directly inside channels and inlets.

Sentinel Monitor
Alert · Monitor
BIO-ENZ 75% PUMP
Sentinel Pro
Alert · Monitor · Dose
STATUS SOLAR SIM IP68 NB-IoT Antenna RGB Status LED Integrated Solar SIM / Comms Flow Sensor Ultrasonic Probe Sealed · IP68 · 3m depth
IP68
Protection
NB-IoT
Connectivity
30 days
Battery backup
<5 min
Alert latency
●  Sentinel Monitor

Real-time drainage intelligence. No dosing required.

A standalone IoT sensor node deployed directly inside drainage channels, inlets and compounds. Continuously measures water levels, flow velocity and blockage risk — transmitting live data to the FlowGuard platform and triggering alerts before floods escalate.

Ultrasonic water level sensing
±2mm accuracy. Continuous measurement of channel depth, updated every 60 seconds.
Flow rate & blockage detection
Electromagnetic sensor detects blockage-induced velocity drops and reverse flow events in real time.
SMS, WhatsApp & dashboard alerts
Multi-channel alerting under 5-minute latency. Threshold-triggered escalation to FlowGuard ops team.
Solar-powered, 30-day battery backup
Integrated 5W polycrystalline panel with 10,000mAh LiPo backup. Zero external power dependency.
IP68 — continuous submersion rated
Sealed to 3m continuous depth. Built for drainage channel deployment where full submersion during flood events is expected.
●  Sentinel Pro

Everything the Monitor does — plus active bio-enzyme treatment.

The Sentinel Pro adds an integrated bio-enzyme dosing module to the full monitoring stack. When sensors detect sediment buildup or organic blockage, the peristaltic pump automatically injects a measured dose of bio-enzyme concentrate — breaking down organic matter before it accumulates into a flood event.

Bio-enzyme dosing module
Automated injection triggered by sensor thresholds or schedule. Breaks down organic sediment — the primary cause of drainage blockage in Lagos.
Replaceable 500ml cartridge
Service life 60–90 days. Snap-in replacement under 2 minutes, no tools. Optical level sensor auto-dispatches a technician at 15% remaining.
Configurable dose control
Dose volume 1–50ml, timing configurable via platform. Supports event-triggered and scheduled pre-treatment modes.
Full Monitor capability included
All water level sensing, flow monitoring, alerting and solar features built in. One device, the complete stack.
IP68 — same submersion rating
The dosing module shares the IP68 enclosure rating. Sealed to 3m continuous depth.
STATUS SOLAR SIM IP68 BIO-ENZYME DOSING 75% capacity PERISTALTIC PUMP NB-IoT Ant. Status LED Solar Panel Bio Module Cartridge Pump Unit Level Probe Sealed · IP68 · 3m depth
IP68
Protection
500 ml
Cartridge
60–90d
Cartridge life
<2 min
Swap time
Side by side

Which Sentinel is right for your estate?

FeatureSentinel MonitorSentinel Pro
Monitoring
Water level sensing (ultrasonic, ±2mm)✓✓
Flow rate measurement✓✓
Blockage & reverse flow detection✓✓
Temperature & humidity logging✓✓
Alerting
SMS flood alerts✓✓
WhatsApp notifications✓✓
Dashboard real-time feed✓✓
Escalation to FlowGuard ops team✓✓
Dosing & Treatment
Bio-enzyme dosing module—✓
Auto-dose on blockage detection—✓
Scheduled pre-treatment dosing—✓
Cartridge level monitoring & auto-dispatch—✓
Dose quantity remote adjustment—✓
Power & Hardware
Solar panel (integrated, 5W)✓✓
Battery backup30 days30 days
ConnectivityNB-IoT + GSMNB-IoT + GSM
IP ratingIP68IP68
Submersion depth3m continuous3m continuous
Service
Included in FlowGuard Monitor tier✓—
Included in FlowGuard Active tier—✓
Field maintenance by FlowGuard team✓✓
Cartridge replenishment serviceN/AIncluded
Technical specifications

Full hardware specs

Sentinel Monitor
Alert & monitoring device
Sensing
Level accuracy±2mm
Sensing range0.2m – 10m
Flow velocity range0 – 12 m/s
Measurement interval60 seconds
MethodUltrasonic pulse
Connectivity
Primary networkNB-IoT (B3/B5/B8/B20)
FallbackGSM 2G/4G
Alert latency<5 minutes
Data protocolMQTT over TLS
Power
Solar input5W polycrystalline
Battery10,000 mAh LiPo
Battery backupUp to 30 days
Physical
IP ratingIP68
Submersion depth3m continuous
HousingASA / PC blend
Operating temp−10°C to +70°C
Weight680g
Dimensions160 × 90 × 55 mm
Sentinel Pro
Alert, monitoring & bio-enzyme dosing
Dosing Module
Cartridge volume500 ml
Cartridge service life60 – 90 days
Dose range1ml – 50ml / event
Dosing accuracy±0.5ml
Pump typePeristaltic micro-pump
Trigger modesSensor threshold / Scheduled
Cartridge swap time<2 minutes
Low-level alertAt 15% remaining
Enzyme compatibilityFlowGuard BioX series
Sensing (same as Monitor)
Level accuracy±2mm
Flow velocity range0 – 12 m/s
ConnectivityNB-IoT + GSM
Battery backupUp to 30 days
Physical
IP ratingIP68
Submersion depth3m continuous
Operating temp−10°C to +70°C
Weight (with cartridge)1.05 kg
Dimensions160 × 140 × 55 mm
Pilot deployments open

Ready to deploy Sentinel in your estate?

Request a free site audit and our team will survey your drainage infrastructure, identify choke points, and recommend the right Sentinel configuration.

Request free site audit → View flood risk map