Tester
High Decibel Water Leakage Alarm Household Sound Light Alarm Anti Overflow Device
FEATURES This water leakage alarm has a high decibel device build in with melodious warming sound. It is suitable for home useThe bottom surface has two probe, once they contact with water, the water leakage alarm will alert and remind you to take measures Specifications Material ABS Size of the ..
$29.61
Honey Sugar Brix Refractometer ATC Handheld Saccharometer Tester
FEATURES Designed for measuring the concentration of sugar solutions and other non-sugar solutionsMade of aluminium alloy material,elegant appearance,safety standards and durable in use.Widely applied in measuring soybean milk concentration, sugar manufacturing, food and beverageAlso suitable for m..
$48.81
KEWEISI USB Charger Doctor Capacity Time Current Voltage Detector Battery Tester Meter Mobile Power 3V-9V Worldwide Universal
FEATURES It can measure the USB-powered devices empty and easy to use and practicalCompact and easy to carry, no additional power supply, plug and playIt can easily measure the output voltage of the USB port and the device operating current or load voltageDetect any USB charger such as PC USB, home..
$25.17
KXL-601 Mini Carbon Monoxide Detector Meter CO Gas Leak Detector Meter with Sound and Light Alarm
FEATURES Portable detector for detecting carbon monoxide(CO) gas Can continuously monitor the CO gas concentration in the surrounding environment Sound and light alarm works when CO gas concentration reaches the level of the alarm Powered by 3 x batteries(not included) Compact size, light weight, e..
$47.17
LCD Carbon Monoxide Warning Detector & Wireless Water Leak Sensor Detector
FEATURES LCD Carbon Monoxide Warning Detector Alarm Easy installation, no need to debug.LCD Display with a blue ground Light.Loud 85 decibel alarm with LED Flash While in the Alarm Mode.Precise electro-optical sensor, high consistency and stability.Permanent carbon monoxide sensor. Loud 85 decibel ..
$31.10
LCD Digital Display Breath Alcohol Tester with Audible Alert Keychain
FEATURES Digital alcohol tester with audible alert LCD backlight display for easy reading Quick response and resume Detect range for 0.00%-0.19% BAC (0.0-1.9g/l) Auto power off Small size with key chain, light weight, easy to carry Powered by 2 AAA batteries (not included) Made of high quality plas..
$20.68
LCD Digital Display Plug-In AC Powered Gas Warning Alarm Sensor
FEATURES Human voice prompt High reliable electrochemical sensor Carbon monoxide gas concentration displaying(PPM) 3*1.5V AAA by battery (not included) Low current consumption, ultra-long standby time Low battery prompt Alarm memory function Auto detect sensor failure EN(EN 50291) standard Specifi..
$35.54
LCD Digital Electromagnetic Radiation Detector EMF Meter Dosimeter
FEATURES Display readings : Three semi-liquid crystal display, maximum reading low-frequency 1999V/M / High Frequency 1999μW/cm2.Level : low-frequency V/m, high-frequency: μW/cm2Wide range of detectable frequencyIt can detect the electromagnetic radiation everywhereComply with CEEasy to operate, it..
$32.58
LCD Digital Electromagnetic Radiation Detector Meter Home Equipment
FEATURES One instrument with two uses, it can test the electric field and the magnetic field radiation at the same timeSound-light alarm, when the test result exceeds the safe value, the instrument will alarm automaticallyData locking, one-key lock of the radiation valueLCD display of the values fo..
$46.28