NESS 640C multi-function cable tester and Digital Multimeter is a practical tool for installation and maintenance of technical personnel in security monitoring, communication wires, integrated wiring and other low voltage systems.
Comprehensive cable testing
Supports virtually all of the cable types encountered by security and CCTV installers:
- RJ45 Ethernet
- RJ11 telephone
- BNC coaxial CCTV
- General low-voltage metallic cables
Advanced network cable diagnostics
Unlike simple continuity testers, the tester provides:
- Wire map
- Opens and shorts
- Cable length measurement
- Pair status
- Impedance
- Signal attenuation
- Skew measurement
These functions help identify exactly where a cable fault exists instead of simply indicating that a cable is faulty.
Cable tracing
The supplied transmitter and receiver allow installers to:
- Trace unknown cables in bundles
- Identify the correct cable quickly
- Reduce time spent searching through cabinets and ceiling spaces
PoE testing
Useful for IP camera installers, it can identify:
- IEEE 802.3af
- IEEE 802.3at
- IEEE 802.3bt
- Non-standard PoE
It also displays:
- Supply voltage
- Which pins carry power
- Polarity
Network troubleshooting tools
Beyond cable testing, it includes network utilities such as:
- IP scanner
- Ping
- Port flashing
- LLDP/CDP detection
- PPPoE dial-up
- FTP server
These features make it useful for commissioning IP CCTV systems and diagnosing network issues.
Fibre optic support
Includes:
- Optical Power Meter
- Visual Fault Locator (red laser)
This allows installers to test fibre links without carrying separate equipment.
Built-in digital multimeter
It also functions as a DMM, providing:
- AC voltage
- DC voltage
- Resistance
- Continuity
- Diode testing
- Capacitance
Large touchscreen
The tester features a:
- 4-inch IPS touchscreen
- 800 × 480 resolution
Rechargeable transmitter and receiver
Both units contain rechargeable lithium batteries:
- Main tester: approximately 6 hours
- Receiver: approximately 12 hours
