For example, you can say "Alexa, what's the temperature in the bedroom?". The temperature tolerance is within ±0.5°C and the humidity is within ±5%RH. Bluetooth is only used for network signal connection and cannot be used alone.
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USB RF Power Meter 0.1~8Ghz AD8319 ARW227 Signal Source Antenna Gain Detector Ham Radio Amplifier 868Mhz 915Mh 2.4Ghz 5.8Ghz
Aliexpress UK
High sensitivity, ultra-low power consumption, fast computing speed, and accurate data. Data refresh frequency: 2 seconds. Automatic compensation technology, to reduce the impact on the carbon monoxide detection results, so that the detection results are more accurate.
eBay
PGSP 4G Smart Home Security Alarm System WiFi GSM, Equipped with Motion Detector for Protectiotion Control Home Anti theft Alarm
Aliexpress UK
Cork mode: beech, spruce, larch, birch, cherry, walnut, willow, fir, cork, cedar. Brick wall mode: brick wall, stone wall, floor. Over range alarm. Inductive non-destructive testing, high-sensitivity sensor.
eBay
SAIVXIAN A-50 Active Optical Fiber Identifier Fiber Cable Tester Detector -70dBm-+10dBm with 30mw VFL optional with wire finder
Aliexpress UK
Press the power button to turn on the machine;. Automatic shutdown: after 15 minutes of no operation. Size: 145 67 32mm.
eBay
PG-103 Home Security Alarm System Wifi GSM Alarm Intercom Remote Control Autodial 433MHz Detectors IOS Android Tuya APP Control
Aliexpress UK
The weight ratio of beech, spruce, larch, cherry, walnut: 8.5-60%. The weight ratio of oak, pine, maple, ash, Douglas fir, and eucalyptus: 6.8-53.4%. Material 6. Material Comparison Table. Material 5.
eBay
KERUI W181 Alarm Security System with Siren Wireless GSM WiFi Intelligent Home Alarm System with Door Sensor PIR Detector
Aliexpress UK
Making it an essential tool for all family's. Low Battery Indicator. Wood 6-42% . Wood: reading <30%: ±2% . Auto Power Off to prolong battery life. Video will open in a new window. Size (mm): 80 x 40 x 20 .
eBay
80MW Fiber Optic Test Pen 80km Visible Fault Detector Non Contact Portable Fiber Tester 2.5mm Universal Connector
Aliexpress UK
High sensitivity, ultra-low power consumption, fast computing speed, and accurate data. Data refresh frequency: 2 seconds. Automatic compensation technology, to reduce the impact on the carbon monoxide detection results, so that the detection results are more accurate.
eBay
COMPTYCO AUA-40/AUA-C40 Fiber Optic Identifier Detector Live Optical Fiber Identifier Built-in Visual Fault Locator (10mw VFL)
Aliexpress UK
Cork mode: beech, spruce, larch, birch, cherry, walnut, willow, fir, cork, cedar. Over range alarm. Brick wall mode: brick wall, stone wall, floor. Inductive non-destructive testing, high-sensitivity sensor.
eBay
2.4GHz soft antenna unmanned aerial vehicle warning equipment, handheld jammer, detector small antenna, WIFI short antenna
Aliexpress UK