Wireless Voice Intercom Doorbell Battery Mobile 200M Outdoor Transmitter with Indoor Receiver

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Specification :

Indoor-bell:
Power supply: built-in rechargeable Li-ion battery
Transmission distance: 50-100m(without any obstacle)
Work time: 48 hours
Wireless frequency: 467.6375 mhz
Working temperature: -20℃ to +55℃
Size:100mm*54mm*20mm
 
Outdoor-bell: 
Power supply: 4 x AAA Battery(not included) 
Transmission distance: 300m (without any obstacle)
Work time: 6 months 
Wireless frequency: 467.6375 mhz
Working temperature: -20℃ ~ +55℃ 
Net weight: approx. 55g 
Gross weight: approx. 150g 
Product size: approx. 100*60*15mm/3.93*2.36*0.59''
Gross weight: approx 165*118*24mm/6.49*4.64*0.94'' 
Color: Silver 
Size:100mm*60mm*14.8mm
Applicable scence:Home.Factory.Hotel.Hospital.Store.Office.etc.
 
Operational principle

1.When the indoor unit is turned on, it can receive the signal from the outdoor unit, and when it is turned off, it cannot receive the signal.

2.Press the outdoor unit and the indoor unit presses the dialogue button to talk.

3.Low battery indicator: When the outdoor unit is low, the red light flashes;and when the indoor unit is low, the green light flashes.

4.Intercom indicator: 

a.When the indoor unit receives the signal from the outdoor unit,the green light flashes.

b.When two indoor units appear at the same time, press the internal pager,they can call each other; when the indoor unit calls another indoor unit, the indoor opportunity to make a call lights up red, and the indoor opportunity to receive the call lights up in blue.

 

Installation matters:

Outdoor unit:

1. Unscrew the screw with a screwdriver and remove the battery cover.

2. Install 4*AAA battery.

3.Install the battery cover and screw on it.

4.Press the intercom button: 

  a.The button light is on, indicating that the machine is normal.

  b.The button light does not light, indicating that the battery is not installed.

  c.If the battery is reversed, it will ring, but it will not talk properly.

Indoor unit:

Press and hold the power button for 3 seconds - after the intercom light flashes a few times, press the intercom button to make a "dudu" sound indicating normal.

Low battery prompt:

Outdoor unit: When the outdoor unit is pressed, the red light flashes, and the low power indicator of the indoor unit also flashes red and the sound of “dudu” is emitted.Indoor unit:The low power indicator flashes green and a "dudu" sound is emitted.

 

Package includeds :

1 x Indoor unit

1 x Outdoor unit

1 x Screwdriver

1 x Double-sided tape

1 x Charging Cable

 

HJ806 RC Boat High Speed 35km/h 200m Control Distance Fast Ship With Cooling Water System

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Description:

Basic information	Model:HJ806 Color:Black red green Material:plastic and metal	Power System	Motor:brush 540 motor Charge:Included
Transmitter	Frequency: 2.4G Channel: 2CH	Battery	Battery:Ni-cd 7.4v 1500mah Transmitter battery:4xAA(not included)
Other	Using time:8-10min Charging time:150-130 min Control distance:200M Max speed:35km/h	Dimension	Product size:47*13.5*11.5cm Package size:48.2*22.5*18.7cm

Feature:
1. Front and rear night light.
2. Both the boat and transmitter has low voltage alarm.
3. The boat can limit the speed to run.
4. 540 motor and cooling system provides great power to run.
5. Big electric current can protect the boat.
6. Beyond distance alarm can be show in the transmitter.
7. The boat head has ball head to protect.
8. Automatic flip function can lead the boat runs again when it overturning.
9. Radar tail design.
10. Double level and streamline design.
11. One transmitter can control several boats.

Package included:
1x rc boat
1x transmitter
1x usb charger
1x manual
1x battery
1x propeller
1x Hexagon wrench
1x Display stand
1x protect ball head

DSO NANO PRO Handheld Oscilloscope 30MHz Bandwidth 200M Sampling Rate 2.4 Inch IPS Full Vision Screen 320*240 Resolution Technology Built-in 64M Storage Built-in 3000mah Lithium Battery

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Features:

DSO NANO PRO is a full function, high utility, high performance and cost-effective handheld oscilloscope for the maintenance industry and the R & D industry.The oscilloscope has a real-time sampling rate of up to 200MS/s and a 30MHz analog bandwidth. With complete triggering function (single, normal, automatic), both the periodic analog signal and the aperiodic digital signal can be used freely.Large time base scanning mode can monitor slow level changes. Equipped with high efficiency one button AUTO, the measured waveform can be displayed without complicated adjustment.Display the High Definition LCD screen equipped with 2.4 inch 320*240 resolution IPS full vision technology, the visual effect is very good, eye protection, the oscilloscope on the market is almost used cheap TN screen, screen fan white. Extremely convenient and fast waveform storage function, built-in 64M storage space, the maximum storage of 2000 waveform pictures. Powerful waveform file manager, support thumbnail browsing, viewing, details view, flip, delete and other functions. Built in 3000mAh rechargeable lithium battery can be continuously charged for 10 hours at one time. Day mode and night mode can be changed according to their own preferences.

Specification:
 

Analog band width: 30MHz

Maximum real time sampling rate: 200MS/s
Time base range: 50s~125ns
Triggering function:single, normal, automatic(both the periodic analog signal and the aperiodic digital signal can be used freely.)
Storage depth: 128KB
Input resistance: 1M
Auto function:support
Voltage accuracy: ±2%
Frequency accuracy: ±0.01%(high-precision)
Cursor type:Level X, level Y, trigger Y
Standby time: 10 hours
Measurement parameters: 11 kinds
Afterglow effect: 1~8 level (Adjustable)
Vertical sensitivity: 50mV/div ~ 200V/div
Maximum input voltage: 40V (1X probe), 800V (10X probe)
Coupling mode: AC/DC
Trigger edge: ascending / descending edge
Scan mode: support
Waveform Manager: support
Waveform storage: maximum storage of 2000 waveform pictures(Support thumbnail browsing, viewing, details view, flip, delete and other functions)
Power: built in 3000mAh rechargeable lithium battery
Size: 90mm x 70mm x 28mm

Screen indicator

1. 1X/10X mode indicator icon, this must be consistent with the 1X/10X switch settings on the probe handle, if the probe is 1X, then the oscilloscope will also be set to 1X, 1X input is the most able to measure the 40V voltage, 10X can measure 800V, do not enter the 40V voltage under the 1X probe, otherwise the oscilloscope will burn out.
2. Measured signal waveform
3. Baseline indicator icon, which indicates the position indicates the current position is 0V voltage.
4. Direction keyboard mode icons
5. Trigger edge indication Icon
6. Peak and peak of measured waveforms
7. The frequency of the measured waveform
8. Background dashed grid can be set or closed in MENU.
9. Trigger voltage indicator icon
10. Horizontal position of waveform
11. Residual power icon, green indicates residual power, contains arrows indicating that it is currently charging.
12. Trigger mode indicator icon, Single means single trigger, Normal means normal trigger, Auto means auto trigger.
13. Input coupling mode indicator, AC means AC coupling, DC means DC coupling.
14. Horizontal time base, which represents the length of time in a horizontal direction.
15. Run the pause indicator icon, RUN means running, STOP indicates a pause.
16. Vertical sensitivity, representing the voltage represented by a large grid in the vertical direction.

Direction keyboard mode description

>Click the "MODE" button to turn the function of the upper and lower left and right keyboard in turn, and the display of the corresponding function icon in the lower left corner of the screen will be divided into three modes.
>[icons] for the zoom mode of the waveform, that is to adjust the vertical sensitivity and time base. Under this mode, the upper and lower keys adjust the vertical sensitivity (the amplification or attenuation of the signal), and the left and right keys adjust the time base (sampling rate).
>[icons] as the movement mode of the waveform, the waveform moves along with the direction indicated by the key, but only the vertical moving wave can not move right and left in the single / normal trigger mode, because the trigger point clock starts at the left starting point.
>In this mode, the upper and lower keys adjust the voltage threshold, the left key set triggers the edge as the drop edge, and the right key sets the trigger edge to the rising edge.

Package includes:

1 x DSO NANO PRO Oscilloscope

1 x 40MHz 10X Probe (3.5mm Turn BNC Switch Head)

1 x MINI USB Data Line

1 x English User Manual