Test Instrument Solutions (TIS) is a UK-based manufacturer and supplier of professional electrical testing equipment, designed for electricians, maintenance engineers and contractors. Founded in 2005, the company offers a comprehensive range of high-quality testers and diagnostic tools used across domestic, commercial and industrial electrical installations.
The TIS product range includes multifunction installation testers, PAT testers, voltage and continuity testers, clamp meters, thermal imaging cameras and EVSE (electric vehicle supply equipment) testing kits. These products are designed to deliver accurate and reliable results while supporting compliance with UK electrical regulations.
Test Instrument Solutions has expanded its offering to include advanced testing systems such as power quality analysers and solar PV testing equipment, as well as innovative EV charger testing solutions. Their EVSE testing systems are among the most advanced on the market, helping electricians efficiently test and certify EV charging installations.
In addition to supplying testing equipment, TIS also provides calibration services, ensuring instruments remain accurate and compliant. With ISO9001 accreditation and a strong reputation for reliability, TIS products are widely used by professionals across the UK.
At Huddersfield Electrical Merchants, we supply a wide range of TIS electrical test equipment at competitive trade prices. Whether you are carrying out installation testing, fault finding or EV charger commissioning, TIS provides dependable tools trusted by electricians.
The TIS product range includes multifunction installation testers, PAT testers, voltage and continuity testers, clamp meters, thermal imaging cameras and EVSE (electric vehicle supply equipment) testing kits. These products are designed to deliver accurate and reliable results while supporting compliance with UK electrical regulations.
Test Instrument Solutions has expanded its offering to include advanced testing systems such as power quality analysers and solar PV testing equipment, as well as innovative EV charger testing solutions. Their EVSE testing systems are among the most advanced on the market, helping electricians efficiently test and certify EV charging installations.
In addition to supplying testing equipment, TIS also provides calibration services, ensuring instruments remain accurate and compliant. With ISO9001 accreditation and a strong reputation for reliability, TIS products are widely used by professionals across the UK.
At Huddersfield Electrical Merchants, we supply a wide range of TIS electrical test equipment at competitive trade prices. Whether you are carrying out installation testing, fault finding or EV charger commissioning, TIS provides dependable tools trusted by electricians.
New
Brand: TIS
Model: TIS1000
TIS 1000
13A Socket Tester with SounderDesigned to test 230V 13A sockets to international standards 1010-1 CAT III 600V in one easy step. Simply plug in for visual and audible indication. Reliable and easy to use. Wiring conditions that are included: correct, missing earth, live earth reversal, liv..
£17.40
Ex Tax:£14.50
New
2-3 Days
Brand: TIS
Model: TIS1100
TIS
TIS 1100
R2, R1, R2 Socket AdapterOur TIS 1100 is a must have accessory for any electrician who carries out testing. It eliminates the need to remove the faceplate of the socket from the wall when testing r2, r1 + r2, saving valuable time and expense. The adapter also allows voltage testing fr..
£18.72
Ex Tax:£15.60
New
2-3 Days
Brand: TIS
Model: TIS201
TIS 201The TIS 201 is a pocket size auto-ranging digital multimeter which is packed with features which include temperature C / F, -20C to 1000C, -4F to 1832F, a thermocouple and measuring ranges which include AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, diode test, ..
£53.44
Ex Tax:£44.53
New
2-3 Days
Brand: TIS
Model: TIS258
TIS 258 Digital Multimeter with TemperatureRobust pocket size digital multimeter with AC/DC voltage 500V AC/DC current 200uA to 10A, resistance to 20MOhm, -20C to 750C, data hold, diode test, continuity buzzer, rubber boot and built in stand, 2000 count LCD display, with backlight.Basic Functions • ..
£28.80
Ex Tax:£24.00
New
Brand: TIS
Model: TIS518
TIS 518 AC Auto-Ranging Digital Clamp MeterThe TIS 518 is the latest edition to our range of digital auto ranging clamp meters. This unit has many new features, including a non contact voltage detector, It also features AC/DC Voltage, AC Current, Resistance, Continuity Buzzer, MaxHold, Data Hold, Di..
£77.22
Ex Tax:£64.35
New
Brand: TIS
Model: TIS570
TIS 570 AC/DC Earth Leakage ClampmeterAC and DC Earth Leakage Clampmeter - award winning product at the ECN Awards
TRMS AC Voltage & AC CurrentDC Voltage: 0 - 300V, Resolution 0.01V, Accuracy 1.0% + 2dgtsAC Voltage: 0 - 300V, Resolution 0.01V, Accuracy 1.2% + 5dgtsDC Current: 0 - 10A, Resolutio..
£270.00
Ex Tax:£225.00
New
Pre-Order
Brand: TIS
Model: TIS819SIKIT
TIS 819SIKIT Voltage Only Complete Safe Isolation KitKit contains : Voltage Tester ITS819, Proving Unit TISPU1, Lockout Kit TISBKIT and TIS PUK Dual Instrument carry case
TIS 819 Voltage TesterThe TIS 819 is a voltage tester only, detects voltage without a battery and with its compact design it..
£122.86
Ex Tax:£102.38
New
2-3 Days
Brand: TIS
Model: TIS850
TIS 850 12V - 690V Digital Voltage & Continuity TesterSPECIFICATION• AC/DC Voltage 12V/24V/50V/120V/230V400V/690V ±(3%+3d) or 5V• Continuity Test 0-1 MO• Phase Rotation Test 3 Phase 4-wire system AC 50/60Hz• Phase Range 120±5 degree• Response Time <2s at 90% of each voltage• Peak Current <..
£40.98
Ex Tax:£34.15
New
Brand: TIS
Model: TIS934
TIS 934 Non-Contact Voltage Detector Audible
The TIS 934 is an optical / accoustical non-contact voltage detector that detects AC Voltage from 50V - 1000V. HSE recommends that voltages over 50V should not be touched, therefore a voltage detector that detects voltage from 50V is a necessary purchase..
£18.72
Ex Tax:£15.60
New
Brand: TIS
Model: TISCHECKBOX
TIS
TIS Checkbox
Calibration CheckboxThe TIS CHECKBOX is a very useful tester which ensures on a weekly or monthly basis that all your multifucntion testers or individual Loop, RCD, Insulation and Continuity testers are within specification. This unit does not replace your annual calibration.
Cal..
£178.62
Ex Tax:£148.85
New
Brand: TIS
Model: TISMFTECO
TIS MFTECO Multifunction Installation TesterThe TIS MFTECO TRMS multifunction tester is a reliable and accurate instrument featuring 2* and 3 wire Loop tests, Auto RCD testing Type A and AC, Insulation and continuity tests.FEATURES• 2* & 3 wire loop tests• Accurate & Reliable "No Trip" t..
£834.00
Ex Tax:£695.00
New
Brand: TIS
Model: TISPU1
TIS
TIS PU1
Proving Unit for all Voltage Testers 0 - 690VThe TIS PU1 is a new product we have introduced at a very competitive price, to ‘prove’ AC/DC voltage testers from 0 - 690 Volts, this includes our very own range of voltage testers. The unit is very easy to use, simply connect the probes on..
£67.50
Ex Tax:£56.25