I was looking for a basic Z-Wave Siren to replace a failed siren in my home automation system. This can be operated with mains or battery. So it will be an improvement over a dead one that runs on battery. I found this siren to work as expected. Right out of the box, I was able to connect to the network and get it up and running with no issues. Siren settings were easy to adjust to choose volume and tone (I used a loud police siren tone and switched to a quieter tune to test). I want to use AC as the main power source and a battery as a backup. However, it was not clear which voltage converter is suitable for this dong. The company has not responded to my request for information in this regard. Since the battery was 6V, I figured if the transformer could supply a little more than 6V, the device wouldn't be drawing current from the battery with the AC on. But I couldn't test this because my transformer only put out 5.8V. It's disappointing that the siren didn't come with a transformer (given how difficult it is to find a micro USB transformer that isn't 5V). I hooked it up to a 5V power supply first and it seemed to work fine, although the battery level was only 22% on the report. I think using a USB port for power is a bad idea. The plug sticks out at the side. The connection is difficult to hide. I drilled a hole next to the connector and covered the cable with circular tape. And the cable runs through the wall into the closet where the sockets are located (see photo).
WETEN USB Rechargeable Self Defense Keychain Alarm For Women - Waterproof 130 DB Security Panic Button Siren Whistle With LED Light - Safety Sound Alert Device Key Chain In Black
14 Review
Self Defense Personal Alarm Keychain For Women – USB Rechargeable Waterproof 130 DB Security Panic Button Siren Whistle With LED Light – Safety Sound Alert Device Key Chain By WETEN (Blue)
20 Review
🔊 Vantamo Personal Alarm for Women: Extra Loud Double Speakers with Strobe Light & Low Battery Notice - Rechargeable Safety Alarm Keychain in Deep Lavender
17 Review
2 Pack 130 DB Rechargeable Self Defense Keychain Alarm - Emergency Personal Siren With LED Light For Women, Kids, Elderly & Joggers By WETEN (Black&White)
12 Review
Fitbit Versa 3 Smartwatch Replacement Band: TOYOUTHS Elastic Nylon Fabric Strap For Women & Men
50 Review
Effortlessly Navigate Your Laptop Or Desktop With The Perixx PERIPAD-501 Wired USB Touchpad
27 Review
12 Months Warranty HP ProBook 440 G2 450 G2 TPN Q139-Q143 Battery Replacement - VI04 756743-001, 756745-001, 756479-421 HSTNN-DB6K HSTNN-LB6K
38 Review
2 Pack Battery And Charger Kit Bundle For Olympus Tough TG-Tracker, TG-5, TG-2IHS, TG-3, TG-4 Waterproof Digital Camera Includes 2 Replacement (1500Mah) LI-90B, LI-92B Batteries + Charger + More
43 Review