Searchzone Sonik

Searchzone Sonik

The Honeywell Searchzone Sonik is a robust and reliable gas-leak detection device that will efficiently “hear” the loss of containment of any high-pressure gas within its listening zone. As it responds to the ultrasonic sound pressure level produced by pressurized gas leaks, it is therefore unaffected by environmental conditions.

Searchzone Sonik is factory calibrated. Its robust sealed design with no moving parts and the advanced solid-state sensor allow for mounting in any orientation, even in the harshest environments. The acoustic gas leak detector will respond quickly to a gas leak within a sensing range radius of typically 20m (65 ft), dependent upon background noise.

No False Alarms– the high-end spectral analysis delivers best-in-class detection of high-pressure gas leaks in real-world environments.

Wide Zone Coverage– typically 20m (65 ft) detection radius, dependent upon background ultrasonic noise levels.

Complements Existing Gas Detectors– the Searchzone Sonik seamlessly integrates with existing point-and-open path gas detectors, thus creating the optimal gas detection mix.

No Moving Parts– the solid-state sensor works flawlessly even in the harshest environments and doesn’t need additional calibration.

Simple Installation and Alignment– the Platform Universal Mount with 3 graduated degrees of freedom enables easy mechanical set-up.

Bluetooth Compatibility– set-up and interrogation from ground level are available via Bluetooth by using the Honeywell Platform application on IS mobile phones. Depending on the mobile device, the range can reach up to 20 m (65 ft).

Instrument Status at a Glance– the Searchzone Sonik features a bright signal light – green, yellow, red, or blue - providing clear indication of the instrument status.

Full Operational Logs– enables post-event analysis to assess overall performance and allows security checks.

Fast Commissioning– the Searchzone Sonik App allows users to save configurations and upload to other Searchzone Soniks for quick and easy commissioning.
  • Increases ease of use with advanced set-up and test tools.
  • Enables quicker, easier installation
  • Minimizes the risks of false alarms
  • Minimizes cost of ownership and saves time
  • Maximizes the safety and efficiency of your mix of fixed gas detectors
  • Provides reliable gas leak detection in a wide range of applications and working environments

• Exploration vessels

• Wellheads

• Compressors

• Metering skids

• Valves


• Pumps

• Valves

• Seals


• Compressors

• Processing plant

• Turbines

• Gas safety valves


• Compressors

• Pipelines

• Metering stations

• Valves
ModelSearchzone Sonik Ultrasonic Gas Leak Detector
Part NumbersSZSK-SMGXX
Sensor TypeTuned piezoelectric transducer
Detection MethodSound Pressure Level at sensor
Frequency Range18 kHz to 70 kHz
Dynamic Range60 dB to 120 dB (detectable range of 40 dB to 140 dB)
CalibrationFactory calibrated (no field calibration required)
Detector RangeTypically 20 m (Standard Mode) or 7m (Focus Mode) on-axis. Background noise dependent. Reference the manual.
Recommended Alarm Setting6 dB above background noise
Cone of Detection+/- 90 degrees (Standard Mode)
+/- 20 degrees (Focus Mode)
Speed of ResponseSensor response 1 second
Programmable Verification time from 1 to 600 seconds
Electronic Self TestBuilt in test diagnostics
Storage Temperature-55° C to +75° C (-67 °F to +167 °F)
Operating Temperature-55° C to +75° C (-67 °F to +167 °F)
Operating Humidity0 to 100% Relative Humidity Condensing
Warm-up TimeLess than 5 minutes (operational)
Power Supply & Maximum Power Consumption24Vdc nominal (18 Vdc to 32 Vdc)
4W for ambient operating temperature -30°C and above, 15 W for ambient operating temperature below -30°C (heater is active)
Cable entries2 x M25 or 2 x 3/4” NPT
RelaysRelays (1 fault, 2 Alarm) – Max. 32 Vdc/ac, max. 2 A resistive load.
Analog Output Signal4–20 mA Normal operation, 1 mA Fault, 2 mA Inhibit, 3 mA Warning, 21 mA Overrange. Isolated, sink or source.
Linear configurable output corresponding to Sound Pressure Level or discrete mode.
Digital CommunicationsModbus RTU RS-485.
HART with handheld communicator or hardwired.
Bluetooth to smartphone or tablet.
Event LogsTime stamped
Visual IndicationHigh Visibility LED; green/yellow/red/blue to indicate detector status
Green (normal) indication can be disabled via Searchzone Sonik App.
Dimensions and WeightInstrument:103 dia x 235 x 179 mm, 6.1 kg (13.5 lbs)
Standard Mount:165 x 165 x 127 mm, 2.9 kg (6.4 lbs)
Large Mount:210 x 210 x 127 mm, 3.5 kg (7.7 lbs)
Enclosure MaterialStainless Steel 316L; with paint finish
Standard or Large Mounting BracketStainless Steel. Graduated to enable Searchzone Sonik to be simply mounted and aimed in 5 degree steps
InterfacesBluetooth non-intrusive connection to suitable mobile device running the Searchzone Sonik mobile app.
Range up to 20 m (mobile device dependent).
Vibration2 - 60 Hz, maximum peak to peak amplitude 1 mm
Ingress Protection (IP) RatingIP 66 / 67 (Type 4X), according to NEMA 250
Core ApprovalsEN 50270: 2015 (EMC)
IEC/EN 61000-6-4; EMC Directive 2014/35/EU
IEC/EN/UL/CSA 61010 (Electrical Safety)
RoHS, China RoHS
Safety ApprovalsATEXEx II 2 GD
Ex db ia IIC T4
Ex tb IIIC T85°C
Ex db eb ia IIC T4
Tamb -55 to +75°C (-67 to 167 °F)
cULusClass I, Div 1, B, C & D
Class II/III, E, F & G (pending)
Tamb -55 to +75°C
Class I Zone 1 AEx d ia IIC T4 (USA)
Class I Zone 1 Ex d ia IIC T4 (Canada)
IECExEx d b ia IIC T4
Ex tb IIIC T85°C
Ex db eb ia IIC T4
Tamb -55 to +75°C (-67 to 167 °F)
Marine ApprovalsType approved to DNV, BV, Lloyds, ABS Location Classes: Temp B, Humidity B, Vibration A & C, EMC B
Other ApprovalsBT SIG (Bluetooth), RED, FCC+, country-specific wireless approvals
EN 61508:2010 SIL2 -55 °C to +75 °C, independently assessed by TÜV
Bluetooth communication securityCertificate-based mutual authentication. Encryption to AES128
Warranty Period36 months from date of shipment.
Adjustable Mounting BracketStandard bracket (included). Large bracket (optional), 2331B1112
SunshadePlastic (included), stainless steel sunshade (optional), 2331B1131
Hand-Held TesterUltrasound-generating device used for functional verification, 2331B1000
Hand Held CommunicatorI.S. Android Smartphone. Download the Searchzone Sonik App