Sentinel S1 · Vape Detector

Full specs & details.

Everything your IT, facilities and compliance people will ask about the Sentinel S1, in one place. No cameras, no audio recording, just air quality.

6 sensors USB‑C or PoE powered 6 hr+ battery backup 2.4 / 5 GHz Wi‑Fi Ø 136 mm ceiling mount

At a glance

The Sentinel S1 is a ceiling mounted air quality detector built for the places cameras cannot go: bathrooms, dorms, guest rooms, changerooms and common areas. It reads the air continuously and sends an alert to your staff the moment a vape signature is confirmed.

SensorsVape signature, PM2.5 (0 to 1000 μg/m³), TVOC (0 to 50 mg/m³), temperature, humidity, plus a tamper switch that alerts the moment the unit is removed from its plate.

AlertsReal-time push notifications to the app, typically within 30 seconds. Adjustable thresholds per sensor. Reading history and alert logs for every detector.

PowerDC 5 V via USB‑C, or Power over Ethernet (IEEE 802.3af) from a standard PoE switch. No power point needed with PoE.

Battery backupInternal rechargeable battery, over 1500 mAh. Keeps the unit running for more than 6 hours in a power outage.

ConnectivityWi‑Fi 2.4 GHz standard (IEEE 802.11 b/g/n), with a dual‑band 2.4 / 5 GHz model available. WPA2‑Personal or WPA3‑Personal. Outbound traffic only, negligible bandwidth. Bluetooth used for setup only.

Network setupSits on a separate device or IoT network with a pre‑shared password, the same way smart TVs and printers are handled. WPA2‑Enterprise (802.1X) is not supported.

MountingCeiling mounted on a two‑screw plate (118 mm hole spacing). Screws and wall plugs supplied. Suits bathrooms, dorms, guest rooms, changerooms and common areas.

PhysicalØ 135.8 mm × 33.3 mm, 247 g, ABS housing. Operating range −10 °C to 50 °C, up to 95% RH non‑condensing.

PrivacyNo camera. No audio recording. No personal data captured. Alerts identify a location, never a person.

Technical specifications

Detection	Vape signature; PM2.5 0 to 1000 μg/m³; TVOC 0 to 50 mg/m³; temperature; relative humidity; tamper switch
Alerting	App push notifications, adjustable threshold per sensor, on‑unit buzzer and status LED, reading history and alert log
Power input	DC 5 V via USB‑C, or PoE (IEEE 802.3af) via RJ45. The RJ45 port is for power only, not data.
Battery	Internal rechargeable, over 1500 mAh, more than 6 hours backup. Not user replaceable.
Standby current	Below 150 mA
Wireless	Wi‑Fi 2.4 GHz, IEEE 802.11 b/g/n, channels 1 to 14 (standard). Dual‑band 2.4 / 5 GHz model available, specify at order. Bluetooth used for setup only.
Wi‑Fi security	WPA2‑Personal, WPA3‑Personal. WPA2‑Enterprise (802.1X) not supported.
Network traffic	Outbound only to the cloud platform. No inbound ports required. A few small readings per minute.
Multi‑unit setup	Bulk pairing supported. A full site can be commissioned from the app in one session.
Management	Multi‑tenant admin, per‑building structure, staff‑level access controls
Operating environment	−10 °C to 50 °C, up to 95% RH, non‑condensing. Indoor use.
Housing	ABS, white
Dimensions	Ø 135.8 mm × 33.3 mm
Weight	247 g
Mounting	Ceiling plate, two screws at 118 mm spacing (3 mm screws and wall plugs supplied)
Environmental	RoHS, REACH

For your IT team

What the detector needs from the network, in plain terms.

Band	2.4 GHz as standard. A dual‑band model that also joins 5 GHz networks is available, so let us know at order if your site runs 5 GHz only.
Security	A network with a pre‑shared password (WPA2‑Personal or WPA3‑Personal). On managed networks the unit is normally placed on a separate device or IoT VLAN with its own password.
Not supported	WPA2‑Enterprise / 802.1X (networks that ask for a username and password, including eduroam‑style networks). If your site only offers Enterprise Wi‑Fi, ask IT to provide a 2.4 or 5 GHz IoT network with a pre‑shared password for the detectors.
Firewall	Outbound HTTPS/MQTT to the cloud platform. No inbound rules, no port forwarding.
Bandwidth	Negligible. A few small readings per minute per unit.
Power without a power point	Any IEEE 802.3af PoE switch or injector. Run one Ethernet cable to the ceiling and the unit is powered.

In the box

Sentinel S1 detector
Ceiling mounting plate
2 × screws and 2 × wall plugs
USB‑C power cable and adapter
Quick start guide

See it on your site.

Book a demo or ask us anything about the Sentinel S1. Australian owned, with an Australian support team.

Book a Demo → See Pricing