Data loggers and data recorders acquire digital data from sensors and other signals. They are primarily used to store data for subsequent downloads to a host PC, but may also include real-time features such as monitors and alarms.

Hydrophones

(55 companies)
...or "flat " sensitivity is given in dB; bounds that define the linear frequency response will be in the form of +-3dB, -1dB/+4dB, etc. Typical values for sensitivity range between -220 and -150. More negative values represent lower sensitivity...
...contained in subatomic particles in order to determine the charge 's electromagnetic interactions. The electrons have a -1 charge. The protons have an opposite charge of +1. In electrical circuits, these charges are detected by electrical charge sensors...

Zener Diodes

(146 companies)
...amounts to a Zener regulator that switches from one Zener voltage to the other on transition through the Zener diode. Standards. JEDEC JESD 211 - Zener and voltage regulator diode rating verification and characterization testing. MIL-E-1/1134 - Zener...

RFID Transceivers

(43 companies)
...frequencies used by RFID equipment. Band. Range. Data speed. Common uses. 120 --159 kHz (low frequency). 10 cm. Low. Animal identification; factory data collection; auto keys. 13.56 MHz (high frequency). 10 cm --1 m. Low to moderate. Smart cards; shelf...

RFID Readers

(147 companies)
Band. Range. Data speed. Common uses. 120 --159 kHz (low frequency). 10 cm. Low. Animal identification; factory data collection; auto keys. 13.56 MHz (high frequency). 10 cm --1 m. Low to moderate. Smart cards; shelf inventories; transactions. 433 MHz...

Resistors

(732 companies)
Typically, the tolerance is within +-2% or +-1% of the nominal value. When a tolerance of 1% is achieved, a 100-ohm, 1% resistor falls in the range of 99 to 101 ohms. Diagram of metal film resistor construction. Image Credit: Learnabout-electronics...

RFID Tags

(145 companies)
...13.56 MHz (high frequency). 10 cm --1 m. Low to moderate. Smart cards; shelf inventories; transactions. 433 MHz (ultra-high frequency). 1 --100 m. Moderate. Defense applications; tracking pallets. Eurasia: 865 --868 MHz (ultra-high frequency). North...