Rig Instrumentation (Drilling)

Mud Flow Level Return Sensor / Transmitter (Dragon)


The original and only fully certified unit on the market!


Stainless steel paddle type flow line sensor that uses an intrinsically safe Ex ia IIC (Zone 0) 10 bit absolute encoder to monitor the movement of the paddle.  2 wire 4…20mA output.




Hook Load / Dead Line Sensor (Pit Bull)


Hook Load Sensor with a field replaceable load cell, for cable diameters up to 2.5″.  Aluminum and stainless steel construction.  Simple ratchet arm for tightening and calibration.




Geolograph / Air Line Retriever (Chameleon)


Pneumatically actuated device to monitor the up/down movement of the travelling block when not possible to attach drawworks encoders directly to rig.  Comes with 100m of thick cable and encoder.  Internal mechanism prevents mis-counts.  Magnetic safety brake built in as standard.  Lightweight construction at under 50 Kg.




Fractional Mud Pump Stroke Counter (Scorpion)



Brand new patent pending concept


Stainless steel sensor provides a 4…20mA signal for the full pushrod movement, giving an absolute position of the pushrod.  Not only does it measure strokes, but it also measures down to 1/256 of a stroke.  A pivot arm is position towards the pushrod, and our spring loaded sensor monitors the rotation equivalent movement of the linear pushrod.




Heave Compensator (Shark)


Device used to monitor the vertical displacement of a drill ship relative to the sea, and the data from the drawworks can be compensated accordingly.  This device features up to 15m (45ft) length linear displacement.  Spring loaded, so no pneumatics required.  Any Hohner encoder can be used.




Multi-Axis Joystick (Salamander)


First truly quad-certified Multi-Axis Zone 0 Joystick


Self contained, IP66 Joystick, using truly certified electronics (not simple apparatus) to generate two 4…20MA signals, one per axis.  Allowing the user full 360 degree rotation of the joystick.  Each axis uses our intrinsically safe Ex ia IIC (Zone 0) 10 bit absolute encoder to give position feedback.






Industry standard clear acrylic type calcimeter with a digital pressure sensor and stainless steel relief valve for easy operation.


Mud Pit Level Sensor (Usonic)



Working together with DrexelBrook in Pennsylvania we can now offer a mud pit level sensor.  Measures up to 9.1m depth using ultra sonic technology.  These devices are offered in explosion proof or intrinsically safe versions with a 2 wire 4…20mA output.

Usonic     Application Guide




Running Line Tension Meter (FP5580)



Working together with Sensy in Belgium we can now offer a running line tensiometer.  Stainless steel construction with built in load cell and using Hohner encoders to measure cable payout.

FP5580 with Display




Inclinometer (Xoloitzcuintle)


Dual or Single Axis Inclinometer in a stainless steel housing, available in a range of angles and orientations.  Explosion proof (Ex d IIC) and Submersible versions (500 bar) with a 4…20mA output.

Inclinometer Explosion Proof

Inclinometer Submersible



DrawWorks Encoders


Complete range of encoders designed to be used on Draw Works.  Intrinsically Safe, Ex ia IIC or IIB (Zone 0) and IP66/X7.  Shafts from 5/8″ threads up to 2″ threads.  Standard hollow shaft available as well.




TopDrive Encoders


An extremely heavy duty Top Drive motor encoder, 12 pounds of solid stainless steel in a flame proof Ex d IIC (Zone ) housing.  Electronics can be incremental, absolute or tachometer.




Coil Tubing and Wireline Encoders


A compact range of encoders based on the standard US sizes (2.5″ square and round, 2.0″ square and round).  Comes with either NAMUR or Voltage electronics.

Intrinsically Safe, Ex ia IIC or IIB (Zone 0)


2.5″ Solid Shaft – NAMUR  /  Voltage

2.0″ Solid Shaft – NAMUR  /  Voltage

2.0″ Hollow Shaft – NAMUR  /  Voltage


A compact replacement for the TRD type encoder is also available in stainless steel with fully certified and upto date electronics


TRD – NAMUR  /  Voltage



600 and 100 bar Submersible Encoders (Chimaera)


New range of submersible encoder rated down to 600 bar (6,000m) depth.  The standard unit goes down to 100 bar and uses a special shaft seal.  For depths down to 600 bar we use a patent pending magnetic coupling to ensure no moving parts are exposed.


Aluminum or stainless steel.

Standard or Intrinsically Safe electronics.


100 bar – Incremental / Absolute / Position 4…20mA


600 bar – All versions