


TG501 Industrial Cellular 4G LTE Mini RTU with rich I/O Supports RS-232/485/422 I/O
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
TG501 Industrial Cellular 4G LTE Mini RTU with rich I/O Supports RS-232/485/422 I/OTG501 Industrial Cellular 4G LTE Mini RTU with rich I O Supports RS 232 485 422 I O and protocols for diverse sensors and controllers Freq. Bands: B1 B2 B3 B5 B7 B8 B20 B28 (Telstra and all other AU providers) Compatible with global 4G 3G and LTE CAT M1 NB IoT Modbus TCP RTU, MQTT, TCP UDP protocols Up to 16MB Local data storage, support 5 data centres SMS alarm and AT command 2 RS232, 1 RS485, 3 ADC, 2 DI, 2 Relay, 1 power output Secure and
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 747 reviews
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Product Reviews
★★★★★ 5
Good product
Works as should and shows correct voltage.. double checked with several multi meters. And has been running my 4000, watt amp for almost 6 months now with no problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
★★★★★ 5
Its ok but falls out
Works good but not connected to the unit so it falls out
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Excelente
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 4
Functions. No trigger,need relay for car install
Functions,but will not turn off. No remote wire,just positive & negative. Need relay to install correctly to use on-board fuse. Or connect to remote only to view voltage use. No instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
★★★★★ 5
Good quality
Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
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