Current Loop Sensor
E4A’s Current Loop Sensor (CLS) is a compact, four-channel 4-20mA sensor designed for easy DIN rail mounting in industrial environments. It connects to any 4-20mA probe, enabling real-time data collection across multiple parameters. By reducing the need for multiple sensors, it saves space and cost while improving efficiency. Integrated with E4A’s gateway, the CLS ensures seamless data transmission and system management.
Flexible Sensor Integration
Supports any off-the-shelf probe with a 4-20mA output, providing flexibility in selecting the most suitable sensor for specific applications.
Multi-Channel Monitoring
Space and Cost Savings
Improved Correlation and Analysis
Equipment Health Monitoring
Measured Parameters

pH Level

Pressure

Internal Battery Fuel Gauge

Ambient Temperature

Flow

Relative Humidity

Level

Many More
Technical Specification
| Main Power | 7-15VDC @ 1.5A (external AC-DC adapter) |
| Other Power (Optional) | USB Type B (5VDC @ 500mA) Internal Battery (3.6VDC, 3500mAh Li-ion) |
| Maximum Charging Current | 1.5A (AC-DC adapter) 500mA (USB Type B) |
| Li-ion Charge Time | 2.2 hours / 3.2 hours (AC-DC adapter) 6.6 hours / 7.6 hours (USB Type B) |
| External Sensors | 24VDC 30mA output per channel, isolated |
| Operating Temperature | -20ºC to +60ºC |
| Internal Battery | Battery charging disabled above 45ºC Battery charging disabled below 10ºC Battery discharging disabled above 60ºC |
| Storage Temperature | -40ºC to +85ºC (Battery installed) -40ºC to +85ºC (Battery not installed) |
| Operating Humidity | 20-85% (operating and storage) |
| Ingress Protection Rating | IP30 |
| Pollution Degree | 2 |
| Analog Front End | 4-Channels for current measurement 0-25mA input per channel |
| Resolution | 16-bit resolution |
| Temperature Measurement | -20ºC to +60ºC (±0.5ºC accuracy) |
| Humidity Measurement | 20-85% relative humidity (±3.5% accuracy) |
| Housing Material | ABS plastic |
| Physical Dimensions | Height: 120mm / 4.7 inches Width: 50mm / 1.9 inches Depth: 90mm / 3.5 inches |
| Weight | 250g |
| Mounting | Universal DIN rail 35mm width Magnetic mount |
| Wireless Module | 2.4GHz Bluetooth® 5.0 transceiver |
| Communication Range | 300m line of sight |
| Communication Interval | User programmable in 10 second increments |
| Output Power | Up to +5dBm with temp. compensation |
| Receiver Sensitivity | -105dBm, 125kbps |
| Security | AES 128-bit crypto accelerator ECC and RSA public key accelerator (PKA) SHA2 accelerator (full suite up to SHA-512) True Random Number Generator (TRNG) |
| Indicators | Front fascia membrane (red, green, orange LED) |
| User Interface | 3 push buttons (user-programmable) 1 power button 2 rotary encoders |
| Current Measurement | 2 x 6 pin connector |
| Communication Port | USB 2.0 debugging interface |
| FCC | 2AXVCLS01 |
| Industry Canada | 26661-CLS01 |
| Safety | UL/CAN/CSA-C22.2 No. 61010-1 UL/CAN/CSA-C22.2 No. UL 61010-2-30 |
Features
24/7 Alarm Notifications:
User-Defined Reporting Interval:
Autonomous Operation:
Broad Compatibility:
Simple Installation:
Wireless Data Transmission:
Utilizes Bluetooth® 5, eliminating the need for LAN cable pulls into the battery room
Coverage:
Customizable Alarm Limits:
Related Products
Parts & Accessories
Internal Battery
Mating Connectors
E4A-CON-00017-01 (6-pin)
AC/DC Adapter
DIN Rail Mounting Clip
| Width | 3.50″ cm |
| Length | 19.80″ cm |
| Thickness | 0.039″ (1.00mm) |
| Material | Steel |
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Headquarters
Electronics4All
250 Herzberg Road
Ottawa, ON K2K 2A1
Lab Testing Facility
Hours
Monday - Friday: 8:30AM - 5PM EST
Saturday - Sunday: Closed





