AQUAGUARD
Top PickThe Custos shop page listed free shipping alongside its AquaGuard kits on 10 November 2026. Custos ships within North America only, because of rules on wireless products.
Limited Time Offer
KIT
The Custos Ultimate Protection Bundle, with the AquaGuard shutoff valve, gateway, three AquaSensor leak sensors, backup battery and probe, was $349 with no monthly fee, on custos.us on 10 November 2026.
Limited Time Offer
STARTER
The Custos Starter Protection Kit, with the AquaGuard shutoff valve, gateway, one AquaSensor and a probe, was $269 with no subscription required, on custos.us on 10 November 2026.
Limited Time Offer
SENSOR
A battery-operated Custos Smart Water Sensor was $39.99, a 2 pack $55.99 and a 4 pack $111.56 on the Custos shop page on 10 November 2026. Sensors need a Custos Gateway.
Limited Time Offer
GATEWAY
The Custos Smart Water Sensor and Gateway Bundle was $157.98 with 3 sensors and $161.56 with 4 sensors on the Custos shop page on 10 November 2026.
Limited Time Offer
Other stores selling the same kind of thing, worth a price check before you buy.
desloc.com
DESLOC US offers 7 deals with savings of up to 20% off and a 4.6/5 rating from 176 reviews.
tualarmasincuotas.es
tualarmaSINcuotas offers 5 deals with savings of up to 23% off and a 4.1/5 rating from 105 reviews.
movistarproseguralarmas.es
Movistar Prosegur Alarmas ES offers 6 deals and a 4.3/5 rating from 11 reviews.
www.butterflymx.com
ButterflyMX offers 5 deals and a 4.2/5 rating from 112 reviews.
fr-fr.ring.com
Ring FR offers 5 deals with savings of up to 10% off and a 4.4/5 rating from 67 reviews.
arcctvlife.com
ARCCTV offers 5 deals and a 4.3/5 rating from 67 reviews.
de.x-sense.com
X-Sense DE offers 1 coupon and 2 deals with savings of up to 30% off and a 4.3/5 rating from 34 reviews.
simplisafe.co.uk
SimpliSafe UK offers 5 deals with savings of up to 20% off and a 4.7/5 rating from 118 reviews.
uk.iegeek.com
ieGeek UK offers 4 deals with savings of up to 60% off and a 4.4/5 rating from 34 reviews.
www.uk.aosulife.com
AosuLife UK offers 6 deals with savings of up to 65% off and a 4.9/5 rating from 295 reviews.
en.welock.com
WELOCK US offers 5 deals and a 4.7/5 rating from 136 reviews.
ultraloq.com
Ultraloq US offers 6 deals with savings of up to 15% off and a 4.3/5 rating from 223 reviews.
www.revoamerica.com
Revo America US offers 1 coupon and 4 deals with savings of up to 10% off and a 4.4/5 rating from 218 reviews.
lockly.com
Lockly Shopify US offers 6 deals and a 4.6/5 rating from 61 reviews.
www.doorricade.com
Doorricade US offers 4 deals and a 4.4/5 rating from 181 reviews.
www.sentrysafe.com
Masterlock offers 5 deals and a 4.7/5 rating from 213 reviews.
brinkshome.com
Brinks Home offers 8 deals with savings of up to 25% off and a 4.2/5 rating from 256 reviews.
arenti.com
Arenti US offers 7 deals with savings of up to 81% off and a 4.2/5 rating from 243 reviews.
Extra codes from partner brands, refreshed alongside this store's offers.
A practical savings guide for shoppers using Custos IoT Solutions offers.
Custos did not show a promo code on 10 November 2026. Its savings come from its kits and bundles, which group the parts you need, and from free shipping listed on its shop page.
The Starter Protection Kit, with the AquaGuard shutoff valve, the Custos Gateway, one AquaSensor and a water probe, was $269. The Ultimate Protection Bundle adds two more sensors and a backup battery that keeps AquaGuard running for up to 24 hours in a power cut, for $349. Extra battery-operated sensors were $39.99 each, $55.99 for 2 and $111.56 for 4, and the sensor and gateway bundle was $157.98 with 3 sensors. Alerts, app control and automations need no monthly fee.
Custos ships within North America only. Items can be returned within 30 days of delivery for a full refund, and Custos pays return postage when it sent the wrong or a defective item. Components carry an 18-month warranty.
The Custos app can create a Water Leak Protection Certificate to share with your insurance agent. Ask your insurer whether it gives any discount for it.
Offers on this page were checked on the Custos website on 10 November 2026.
Social Proof
Ratings and written reviews from shoppers who used these offers.
No reviews yet — be the first to review this store.