Comet U7844M – IoT Wireless Four Channel Datalogger with Pulse and Two-State Inputs, with Built-in GSM Modem
$825.00
In Stock
The Comet U7844M data logger monitors 4 channels via two pulse and two binary inputs. Operating on a 3.6 V lithium battery, this device features a built-in GSM modem for GPRS data transfer and SMS alerting. It retains 500.000 values within a -20 to +60 °C measuring range, displaying real-time metrics on an integrated LCD screen.
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Comet U7844M - IoT Wireless Four Channel Datalogger with Pulse and Two-State Inputs, with Built-in GSM Modem Specs
| Brand | N/A |
| Parameters of the voltage contact | "L" level input voltage: 2 V; Minimum voltage applicable:0 V; Maximum voltage applicable:+30 V DC |
| Parameters of the voltage-free contact | Contact resistance in "switched-on" state: 300 kOhm; Contact voltage in the "switched-off" state:ca 3 V; Minimum state duration necessary for latching the state:1s |
| Counter parameters | Range 24 bits (16 777 215), possibility of letting the |
| Maximum pulse frequency | configured for voltage input - max. 5kHz configured for a voltage-free or open-collector transistor - max. 200Hz |
| Operating temperature | -20 to +60 °C |
| Channels | 4x binary input nebo 2x binary input a 2x counter |
| Memory | 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode |
| Recording interval | adjustable from 1 s to 24 h |
| Display and alarm refresh | adjustable 1 s, 10 s, 1 min |
| Recording mode | noncyclic - data logging stops after filling the memory cyclic - after filling memory oldest data is overwritten by new |
| Real time clock | year, leap year, month, day, hour, minute, second |
| Power | battery SONY LiIon 5200mAh |
| Protection class | IP20 |
| Dimensions | 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm |
| Weight (including batteries) | approx. 270 g |
| Warranty | 3 years |
- U7844M
- Instruction Manual
- Rechargeable Battery
- Power Supply
- USB-C Cable
- FREE Analytical Software COMET Vision
- COMET Cloud for 3 Months
- Note: Sim card is not included
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