Smart Cloud Alarm Dialer & Dry Contact Input
Connect any external sensor, relay, or industrial fail switch to turn your MaxLinc EDGE monitor into a next-generation Cloud Alarm Dialer. Zero dedicated landlines, zero monthly SIM fees, and simultaneous dispatch to unlimited recipients.
Why Replace Legacy Industrial Autodialers?
Traditional industrial alarm dialers (autodialers) rely on 1990s technology: expensive dedicated hardware, landlines, or dedicated monthly SIM cards, and slow sequential phone trees.
Traditional Industrial Autodialers
- Requires dedicated analog POTS landline ($50-$100/mo) or dedicated SIM contract
- Sequential phone dialing — calls only 1 person at a time (busy signal stops alerts)
- No push notifications, no mobile app, no live cloud audit trail
- Complex landline wiring and single-purpose expensive hardware box
MaxLinc EDGE Cloud Alarm Dialer
- Zero dedicated landlines or expensive monthly cell plans — uses WiFi or MaxLinc Cloud
- Simultaneous dispatch — Phone Calls + SMS + Email + Push sent to UNLIMITED recipients at once
- Full cloud audit trail, real-time app status, and remote alert acknowledgement
- Universal NO/NC dry contact terminal built into every EDGE environmental logger
Universal Dry Contact Compatibility
Connect any voltage-free Normally Open (NO) or Normally Closed (NC) relay switch or sensor directly into the EDGE terminal block:
Generators & Automatic Transfer Switches (ATS)
Receive instant voice calls and SMS alerts if your standby generator fails, trips an error relay, or fails to start during a power outage.
Sump Pumps & Liquid Level Floats
Connect a high-water float switch as a secondary fail-safe alert before basement or mechanical room flooding occurs.
HVAC, Chillers & Compressor Trips
Monitor boiler fault relays, air pressure switches, and chiller trip contacts to prevent HVAC breakdown.
Burglar & Fire Alarm Panel Auxiliary Outputs
Interface directly with security panel auxiliary dry contacts to get instant multi-recipient cloud notifications.
Industrial Pressure & Flow Switches
Get notified the instant fluid line pressure crosses high/low safety thresholds or limit switches toggle.
Door & Vault Intrusion Switches
Attach magnetic reed switches to secure cold room doors, server room entries, or sensitive vault doors.
Engineered for Mission-Critical Alerting
Unlimited Recipients
Never limit emergency alerts to 1 or 2 technicians. Notify your entire operational team simultaneously across multiple phone numbers and email addresses.
Multi-Channel Redundancy
Alerts hit your team across 4 vectors: automated Phone Calls, SMS Text Messages, Email, and Mobile App Push Notifications.
Dual Environmental + Relay Logging
Track ambient temperature, relative humidity, and mold index 24/7 on the same device while monitoring the digital dry contact input.
Remote Acknowledgement & Audit Logs
Track who acknowledged the alert in real time with timestamped cloud records for compliance and operational accountability.
Feature Comparison
| Feature | Legacy POTS / Cell Autodialers | MaxLinc EDGE Cloud Dialer |
|---|---|---|
| Hardware Cost | $500 – $2,000+ | FREE (Built into EDGE Monitors) |
| Dedicated Landline / SIM Cost | $50 – $100 / month | $0 / month (Included with Cloud) |
| Recipient Limit | Strictly 4–8 phone numbers | UNLIMITED Recipients |
| Dispatch Method | Sequential (One phone call at a time) | SIMULTANEOUS Calls + SMS + Email + Push |
| Alert Acknowledgment | DTMF key press on phone call | Phone, App, Web, or Email 1-Tap Ack |
| Environmental Logging | None (Alarm-only) | Full Temp, Humidity & Mold Index Logging |
| Cloud Audit Trail | No | Yes (Real-time logs & compliance export) |
Compatible EDGE Family Monitors
Every MaxLinc EDGE device comes standard with a built-in Dry Contact Digital Input terminal block:

EDGE Essential WiFi
<p>High-performance ambient temperature and humidity datalogger. WiFi connected.</p>

EDGE Essential Cellular
<p>Ambient temperature and humidity datalogger with internal cellular tracking.</p>

EDGE Thermo WiFi
WiFi datalogger with external probes for freezer monitoring.

MaxLinc EDGE Pharma Two WiFi Data Logger - HACCP Compliant Cold Chain
<p>NIST-traceable WiFi datalogger for vaccines and blood banks.</p>

EDGE Air WiFi
Indoor Air Quality monitor for CO2, VOC, Temp and Humidity.
Frequently Asked Questions
What is a Dry Contact Input?
A dry contact input (or voltage-free digital input) is an electrical contact interface that detects whether an external circuit is open or closed (Open/Close). It does not supply voltage; it simply detects contact closure from external relays, switches, or sensors.
How does MaxLinc replace a traditional autodialer?
Traditional autodialers require a dedicated analog landline or paid cellular plan to plug into a wall. MaxLinc EDGE connects to your WiFi or cellular network and uses our cloud infrastructure to generate phone calls, SMS, emails, and app push notifications instantly without needing a physical phone jack or dedicated SIM plan.
How many phone numbers and emails can be notified simultaneously?
There is no limit! You can configure an unlimited number of recipients to receive phone calls, SMS text messages, emails, and mobile app push notifications simultaneously the moment the dry contact status changes.
Can I monitor temperature and humidity at the same time?
Yes! The dry contact input is an additional built-in feature on EDGE devices. Your device continues to log ambient (or external probe) temperature, humidity, and mold index while continuously listening for dry contact state changes.
Upgrade Your Industrial Autodialer Today
Get built-in dry contact digital input, simultaneous multi-channel alerts, and zero monthly phone line fees with MaxLinc EDGE.
Shop EDGE Monitors