

X-404™ | Modbus Master Controller
Monitor up to 32 modbus devices/sensors as well as a 1-Wire Bus for Temperature and Humidity Monitoring
X-404™ Models
X-404 | Modbus Master
Ethernet-based RS-485 Controller
In Stock
PART NUMBER
X-404-I
OUTPUTS/INPUTS
Modbus Sensors: Up to 32 sensors
Temp/Humidity: Up to 16 sensors
Range: -67°F to 257°F (-55°C to +125°C)
POWER SUPPLY
9-28 VDC*
X-404C | Cellular
Broad Cellular Coverage + Ethernet
In Stock
PART NUMBER
X-404C-I-CA
Note: Each devices requires a ControlByWeb cellular data plan (sold separately).
OUTPUTS/INPUTS
Temp/Humidity: Up to 16 sensors
Expansion Bus: Up to 64 I/O points via Expansion Modules (below) or remote ControlByWeb devices
POWER SUPPLY
9-28 VDC*
PRICE
$439.95
Cellular Data Plans
Billed Annually | Auto-Renewed
5 MB PLAN
Annual Price: $59.95
Ideal for Internet/network failover applications
10 MB PLAN
Annual Price: $95.95
Perfect for most use cases with few end points
30 MB PLAN
Annual Price: $179.95
Great for monitoring many end points
DETAILS
Plan Duration: Annual
Renewal: Automatic
Cloud Device Seat: Basic Seat Included. Learn more
Check coverage map
Call for International coverage
Contact Us for upgrades or cancellations.
Data Overage Fee: $0.50 per MB, billed monthly for all plans. Annual Auto-Renew: cellular data plan is annual and auto-renews on the anniversary of your purchase. Cancellations & Upgrades: upgrades will be pro-rated based on the time left on your plan. Cancellations prevent auto-renewal at the end of your plan year, but do not result in a refund.
* These devices are sold as components and do not include a power supply.
Power Supplies

In Stock
PART NUMBER
2902992
DESCRIPTION
Output: 24 V DC±1%, 2.5 Amp
Input Voltage: 100-240V AC
Input Frequency: 50-60 Hz ±5 Hz
PRICE
$74.95

Power Supply | 12VDC
In Stock
PART NUMBER
PS12VW1.5-NA
DESCRIPTION
Regulated, 12V DC, 1.5Amp (100-240V AC Input)
PRICE
$19.95

International Power Supply | 12VDC
In Stock
PART NUMBER
PS12VW1.5-I
DESCRIPTION
Regulated, 12V DC, 1.5Amp (100-240V AC Input) - Includes EU, UK, and SAA prongs
PRICE
$21.95
Compatible Accessories
Cloud

In Stock
PART NUMBER
X-CLD-B
DESCRIPTION
30 Days Data Logging - Annual Subscription
Cellular plans include a Basic Cloud subscription
PRICE
$11.95

In Stock
PART NUMBER
X-CLD-A
DESCRIPTION
90 Days Data Logging - Annual Subscription
To upgrade cellular devices to an Advanced Cloud subscription, contact us.
PRICE
$23.95
Temperature Sensors

Temperature/Humidity Sensor (Probe) Compatible w/ X-400 Series, FridgeAlert, X-600M, & WebRelay-Wireless.
In Stock
PART NUMBER
X-DTHS-P
DESCRIPTION
Digital Humidity/Temperature Probe
PRICE
$129.95

PART NUMBER
X-DTS-S3C
DESCRIPTION
Water and weather resistant - 1m cable - Approx. 3 ft. Rating: IP66 (Dust tight, water spray)
PRICE
$14.95

PART NUMBER
X-DTS-S12C
DESCRIPTION
Water and weather resistant - 4m cable - Approx. 12 ft. Rating: IP66 (Dust tight, water spray)
PRICE
$24.95

PART NUMBER
X-DTS-S32C
DESCRIPTION
Water and weather resistant - 10m cable - Approx. 32 ft. Rating: IP66 (Dust tight, water spray)
PRICE
$34.95

PART NUMBER
X-DTS-S12-SUB
DESCRIPTION
Submersible - 4m cable - Approx. 12 ft. Rating: IP66 (Dust tight, water spray)
PRICE
$59.95

PART NUMBER
XW-110B
DESCRIPTION
Used as a wireless temperature sensor to other ControlByWeb Products. Can also be used as a stand-alone temperature monitoring device
PRICE
$159.95
For Part Numbers & Pricing
1-435-750-5999

In Stock
PART NUMBER
X-DTS-U
DESCRIPTION
Digital Temperature Sensor
PRICE
$16.95

In Stock
PART NUMBER
X-DTS-WMX
DESCRIPTION
Digital Temperature Sensor
PRICE
$49.95

Thermocouple to 1-Wire Adapter Compatible w/ X-400 Series, FridgeAlert, X-600M, & WebRelay-Wireless.
In Stock
PART NUMBER
X-TC1W-K
DESCRIPTION
Type-K Thermocouple to 1-wire signal adapter for use in high-range temperature applications. (Thermocouple not included.)
Thermocouple Range: -200°C to 260°C (-328°F to 500°F)
PRICE
$84.95

In Stock
PART NUMBER
X-DTMM-1
DESCRIPTION
Magnetic Sensor Mount for ControlByWeb temperature sensors: X-DTS-S3C, X-DTS-S12C, X-DTS-S32C
PRICE
$19.95

PART NUMBER
X-KTC-B-24-72
DESCRIPTION
Thermocouple with molded connector, Type K, 24AWG, PFA insulation. Length: 183cm (72")Temperature Range: -200°C to +260°C (-328°F to +500°F)Accuracy -200°C - 0°C: 2%Accuracy 0°C - 260°C: 0.75%
PRICE
$39.95
Ultrasonic Sensors

MNU-2424 Mid-Range Ultrasonic Level Sensor - Modbus RS-485
Lead Time: 2-4 Weeks
PART NUMBER
MNU-2424-C6-B81
DESCRIPTION
Ultrasonic Level Sensor, 25 Feet Range, 2 inch NPT, Modbus RS-485, 6' Cable (call for custom lengths)
PRICE
$624.95

MNU-3434 Long-Range Ultrasonic Level Sensor - Modbus RS-485
Lead Time: 2-4 Weeks
PART NUMBER
MNU-3434-C6-B81
DESCRIPTION
Ultrasonic Level Sensor, 40 Feet Range, 3 inch NPT, Modbus RS-485, 6' Cable (call for custom lengths)
PRICE
$859.95
Pressure Sensors

PT-500 Submersible Pressure Transducer
DESCRIPTION
Submersible pressure transducer for long-range level monitoring in extreme conditions
PRICE
$699.95
For Part Numbers & Pricing
1-435-750-5999
Float Sensors

MPX Customizable Float Sensor
DESCRIPTION
Magnetostrictive float sensor for robust level monitoring applications.
PRICE
$1250.00
For Part Numbers & Pricing
1-435-750-5999
Misc Accessories

Ethernet Cable
In Stock
PART NUMBER
UTP5-5-BLUE
DESCRIPTION
Type: Cat-5E. Length: 5ft (1.52m). Color: Blue
PRICE
$3.95

MND Modbus Display
Lead Time: 2 Weeks
PART NUMBER
MND-202201-2-0-2-0000-B81
DESCRIPTION
Local display for up to 10 sensors. Used as a Modbus master, slave, or power source on any Modbus network.
PRICE
$503.31