
Wireless Door Magnetic Sensor Contact Switch
Â
Â
MD-220R is a mini wireless magnetic contact with elegant design. Its ability of transmitting signal is strong, which can keep high sensitivity within 150m. Before installation, we need to learn its unique address code into the panel system.When install, please pay much attention to the mark Δ on transmitter and contact, keep them on same level as shown in the picture.if someone tries to open the door, once the transmitter and contact separate about 2.5cm,it will send alarm signal to host, the user will get the alert.
Â
Specifications
Â
Model | MA-220R |
Network Protocol | ASK |
Working Frequency | 433mhz/868mhz |
Built in Antenna | YES |
Power Supply | 3V(CR123A) |
Working Current | static≤10uA,alarm≤50mA |
Alarm Output |
Alarm report, Recovery Report Tamper Report, Low Battery Report Status Report |
Status Report | Report to host Per 50 Minutes |
Working Environment | -10ºC~50ºC(14ºF-122ºF) |
Dimension | transmitter 69.5(L)*21.2(W)*19.5(H)mm Contact 34.5(L)*10(W)*13.2(H)mm |
Â
Applications
Enterprises, bank, traffic, insurance, super marketing, parking, school, library management, access control ect.
Â
About us
Â
Techcrepower is one very professional card products supplier since 2006, we had provided hundreds of millions of Smart
card, RFID contactless card, ABS key tag, NFC tag, Wristband tag, Disc tag … with various chips 125KHZ/13.56MHZ
in China and worldwide.Â
We focus on quality and services as No.1. Trust you would be very impressive of our products and services if you try!Â
We appreciate any opportunity to cooperate with you!

Wireless Door Magnetic Sensor Contact Switch
Â
Â
MD-220R is a mini wireless magnetic contact with elegant design. Its ability of transmitting signal is strong, which can keep high sensitivity within 150m. Before installation, we need to learn its unique address code into the panel system.When install, please pay much attention to the mark Δ on transmitter and contact, keep them on same level as shown in the picture.if someone tries to open the door, once the transmitter and contact separate about 2.5cm,it will send alarm signal to host, the user will get the alert.
Â
Specifications
Â
Model | MA-220R |
Network Protocol | ASK |
Working Frequency | 433mhz/868mhz |
Built in Antenna | YES |
Power Supply | 3V(CR123A) |
Working Current | static≤10uA,alarm≤50mA |
Alarm Output |
Alarm report, Recovery Report Tamper Report, Low Battery Report Status Report |
Status Report | Report to host Per 50 Minutes |
Working Environment | -10ºC~50ºC(14ºF-122ºF) |
Dimension | transmitter 69.5(L)*21.2(W)*19.5(H)mm Contact 34.5(L)*10(W)*13.2(H)mm |
Â
Applications
Enterprises, bank, traffic, insurance, super marketing, parking, school, library management, access control ect.
Â
About us
Â
Techcrepower is one very professional card products supplier since 2006, we had provided hundreds of millions of Smart
card, RFID contactless card, ABS key tag, NFC tag, Wristband tag, Disc tag … with various chips 125KHZ/13.56MHZ
in China and worldwide.Â
We focus on quality and services as No.1. Trust you would be very impressive of our products and services if you try!Â
We appreciate any opportunity to cooperate with you!
Disposable serological pipettes with polyester fiber plugs are ideal for tissue culture applications. Crisp, black, highly legible permanent graduations prevent ambiguity and guarantee precise reading and accurate dispensing within ± 2%. Reverse graduations show volume removed or remaining on all pipettes larger than 1mL. Generous negative graduations provide additional pipetting volume. Yongyue's serological pipettes are made from transparent USP Class VI polystyrene sterilized by gamma irradiation. Each lot is free from pyrogens, DNases, and RNases.Yongyue's plastic serological pipettes are produced under the strictest protocols and offer the highest degree of accuracy.
The pipettes are supplied with an aerosol barrier plug that prevents both liquid and aerosols from contaminating the pipettors.
The serological pipettes are produced from crystal clear polystyrene (PS) and are color coded for easy volume identification. Available in 1mL, 2mL, 5mL, 10mL, 25mL and 50mL sizes.
In addition each Pipette now features:
Crisp and bold easy-to-read graduation marks
Reverse graduations on all volumes
Negative graduations on all volumes
1, 2 and 5mL pipettes feature one-piece construction
10, 25 and 50mL pipettes feature three-piece construction
1 ml Serological Pipette,50 ml Serological Pipette,10 ml Serological Pipette,5 ml Serological Pipette,25 ml Serological Pipette,Serological Pipette 2ml
Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yypcr.com